A gradual hyperbolic space truss structure corridor and a hoisting and overturning installation method thereof

Abstract

The application discloses a gradually-changing hyperbolic space truss structure corridor and a lifting and overturning installation method thereof, and belongs to the technical field of building construction. The corridor is mainly composed of left and right steel frames, inner and outer frame trusses and upper and lower chord connection systems, the inner and outer frame trusses are curved inwards in the horizontal direction and have arc shapes, and the vertical section height gradually decreases from the two ends to the middle. The lifting and overturning installation method is characterized in that the whole truss is horizontally assembled below the installation position, supported by two ground three-direction adjustable pin shaft supports, lifted and overturned by three crawler cranes, adjusted to the corresponding design position, folded, connected components and parts between the upper and lower chords are sequentially installed, and finally, the truss is unloaded in sections and synchronously. The method significantly reduces the amount of high-altitude operation, reduces the tonnage of the crane, improves the construction safety, installation precision and efficiency, and effectively saves the construction cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building construction, in particular relates to a steel structure and a construction method thereof, and specifically relates to a gradually changing hyperbolic space truss structure corridor and a lifting and overturning installation method thereof. BACKGROUND

[0002] With the rapid development of China's economy, the construction industry has ushered in an unprecedented prosperity, in order to meet the growing diversification needs of people, all kinds of unique building shape emerge in an endless stream. With the continuous innovation of steel structure technology, special-shaped steel structure (i.e. non-traditional steel structure with complex geometric shape) gradually becomes an important type of steel structure due to its excellent modeling ability, structural efficiency and large span realization ability, and special-shaped steel structure enriches the building appearance with its unique form, and is widely used in large public and landmark buildings.

[0003] However, in the actual application and construction process of special-shaped steel structure, the following problems exist:

[0004] 1) The application position or location of special-shaped steel structure on the building main body is relatively single, and most of them are only applied to the roof, facade, curtain wall and the like.

[0005] 2) In the installation and construction of special-shaped steel structure, the traditional segmented high-altitude bulk, modular installation or whole hoisting installation method is still adopted, which has the problems of large high-altitude operation amount, high safety risk, poor precision, low efficiency and the like.

[0006] 3) In the installation and construction of special-shaped steel structure, the amount of temporary support is large or a large tonnage crane is needed, and the overall construction cost is high. SUMMARY

[0007] The present application belongs to the technical field of building construction, in particular relates to a steel structure and a construction method thereof, and specifically relates to a gradually changing hyperbolic space truss structure corridor and a lifting and overturning installation method thereof.

[0008] The present application is realized by the following technical scheme:

[0009] In one aspect of the present application, a gradually changing hyperbolic space truss structure corridor is provided, which comprises a left side steel frame, a right side steel frame, an outer truss, an inner truss, an upper chord connection system and a lower chord connection system; the outer truss is fixedly installed between the outer side end of the left side steel frame and the outer side end of the right side steel frame, the inner truss is fixedly installed between the inner side end of the left side steel frame and the inner side end of the right side steel frame, the upper chord connection system is fixedly installed between the top ends of the outer truss and the inner truss, and the lower chord connection system is fixedly installed between the bottom ends of the outer truss and the inner truss.

[0010] The left steel frame comprises a left outer structural column and a left inner structural column, the left outer structural column is fixedly connected with the left end of the outer truss, and the left inner structural column is fixedly connected with the left end of the inner truss.

[0011] The right steel frame comprises a right outer structural column and a right inner structural column, the right outer structural column is fixedly connected with the right end of the outer truss, and the right inner structural column is fixedly connected with the left end of the inner truss.

[0012] The outer truss is in an inwardly curved arc shape in the horizontal direction, and the vertical cross-sectional height of the outer truss gradually decreases from both ends to the middle; the outer truss comprises an outer upper chord member and an outer lower chord member, both of which are in an inwardly curved arc shape, and the outer lower chord member is also in an upwardly curved arc shape, a plurality of outer main diagonal members are fixedly connected between the outer upper chord member and the outer lower chord member, a plurality of outer intermediate horizontal members are arranged in an upper-lower interval between the outer upper chord member and the outer lower chord member, the outer intermediate horizontal members are fixedly connected with the outer main diagonal members, and a plurality of outer auxiliary diagonal members are fixedly connected between the outer lower chord member and the outer intermediate horizontal member located at the bottom.

[0013] The inner truss is in an inwardly curved arc shape in the horizontal direction, and the vertical cross-sectional height of the inner truss gradually decreases from both ends to the middle; the inner truss comprises an inner upper chord member and an inner lower chord member, both of which are in an inwardly curved arc shape, and the inner lower chord member is also in an upwardly curved arc shape, a plurality of inner main diagonal members are fixedly connected between the inner upper chord member and the inner lower chord member, a plurality of inner intermediate horizontal members are arranged in an upper-lower interval between the inner upper chord member and the inner lower chord member, the inner intermediate horizontal members are fixedly connected with the inner main diagonal members, and a plurality of inner auxiliary diagonal members are fixedly connected between the inner lower chord member and the inner intermediate horizontal member located at the bottom.

[0014] The upper chord connection system comprises upper chord connection main beams, a plurality of which are fixedly connected in an interval between the outer upper chord member and the inner upper chord member; an upper chord diagonal support is arranged between adjacent upper chord connection main beams, and both ends of the upper chord diagonal support are fixedly connected with adjacent upper chord connection main beams and the outer upper chord member and the inner upper chord member; a plurality of upper chord connection secondary beams are arranged between adjacent upper chord connection main beams, both ends of the upper chord connection secondary beam are fixedly connected with the outer upper chord member and the inner upper chord member, and the upper chord connection secondary beam is fixedly connected with the corresponding upper chord diagonal support.

[0015] The lower chord connection system comprises a plurality of lower chord connection main beams, which are fixed between the outer column lower chord members and the inner column lower chord members; a lower chord inclined support is arranged between adjacent lower chord connection main beams, and the two ends of the lower chord inclined support are fixedly connected with the adjacent lower chord connection main beams and the outer column lower chord members and the inner column lower chord members; a plurality of lower chord connection secondary beams are arranged between adjacent lower chord connection main beams, and the two ends of the lower chord connection secondary beams are fixedly connected with the outer column lower chord members and the inner column lower chord members, and the lower chord connection secondary beams are fixedly connected with the corresponding lower chord inclined supports.

[0016] The left outer structural column in the left steel frame and the right outer structural column in the right steel frame are inclined outward, and the outer column truss is inclined outward as a whole after the two ends of the outer column truss are fixedly connected with the left outer structural column and the right outer structural column; the left inner structural column in the left steel frame and the right inner structural column in the right steel frame are perpendicular, and the inner column truss is perpendicular as a whole after the two ends of the inner column truss are fixedly connected with the left inner structural column and the right inner structural column.

[0017] Further, the left outer structural column in the left steel frame and the right outer structural column in the right steel frame form an angle of 76° with the ground, and the outer column truss forms an angle of 76° with the ground.

[0018] In another aspect of the present application, a hoisting and overturning installation method of the above-mentioned gradually changing double-curvature space truss structure corridor is provided, which comprises the following steps:

[0019] First step: install the left steel frame and the right steel frame, and the position between the two steel frames is the truss segment in-place position; horizontally assemble the outer column truss on the ground outside the truss segment in-place position, and during the assembly, the outer column upper chord members of the outer column truss are located on the side far away from the connecting line of the two steel frames, and the outer column lower chord members of the outer column truss are located on the side close to the connecting line of the two steel frames; horizontally assemble the inner column truss on the ground inside the truss segment in-place position, and during the assembly, the inner column upper chord members of the inner column truss are located on the side far away from the connecting line of the two steel frames, and the inner column lower chord members of the inner column truss are located on the side close to the connecting line of the two steel frames.

[0020] Second step: temporary bars are respectively fixed at positions near two ends of the outer truss and on the side facing the ground, the temporary bars are arranged to extend towards the direction of the connecting line of the two steel frames, the end of the temporary bar exceeds the lower chord bar of the outer truss and is connected with the pin shaft on the three-way adjustable pin shaft support, the three-way adjustable pin shaft support is fixedly connected with the ground reinforced concrete foundation at the corresponding position through the embedded bolt and the embedded steel plate, the arrangement of the temporary bar and the three-way adjustable pin shaft support forms a support point for connecting the outer truss with the ground, through the action of the pin shaft at the support point, the outer truss has the function of rotating as a whole around the pin shaft; temporary bars are respectively fixed at positions near two ends of the inner truss and on the side facing the ground, the temporary bars are arranged to extend towards the direction of the connecting line of the two steel frames, the end of the temporary bar exceeds the lower chord bar of the inner truss and is connected with the pin shaft on the three-way adjustable pin shaft support, the three-way adjustable pin shaft support is fixedly connected with the ground reinforced concrete foundation at the corresponding position through the embedded bolt and the embedded steel plate, the arrangement of the temporary bar and the three-way adjustable pin shaft support forms a support point for connecting the inner truss with the ground, through the action of the pin shaft at the support point, the inner truss has the function of rotating as a whole around the pin shaft.

[0021] Third step: the inner truss is hoisted first, three crawler cranes are respectively arranged on the outer side of the upper chord bar of the inner truss at the hoisting standing position corresponding to the hoisting point position calculated and determined according to the load distribution, the hoisting point position on the upper chord bar of the inner truss is connected with the hooks of the three crawler cranes through the lifting cable, the hooks of the three crawler cranes are started during hoisting, the two crawler cranes located at the two ends of the inner truss adopt the same hook lifting speed, the crawler crane located at the middle of the inner truss adopts a hook lifting speed that can keep dynamic balance with the hook lifting speed of the two crawler cranes, one side of the upper chord bar of the inner truss is hoisted and lifted, one side of the lower chord bar of the inner truss is rotated through the temporary bar and the three-way adjustable pin shaft support, until the inner truss is turned to the required angle, and the corresponding design position under the load working condition is reached through the adjustment of the three-way adjustable pin shaft support, then temporary vertical support frames are arranged between the inner truss and the ground to stably support the inner truss, finally, the two ends and the two sides of the inner truss are butted and welded with the steel frames, after the inner truss is kept stable, the hooks of the three crawler cranes are removed.

[0022] The fourth step is to hoist and place the outer truss after the inner truss is hoisted and placed, welded and connected, and stabilized. Three crawler cranes are respectively positioned on the outer chord members of the outer truss according to the load distribution calculation and the determined hoisting position. The hoisting position on the outer chord members is connected with the hooks of the three crawler cranes through the lifting ropes. When hoisting, the hooks of the three crawler cranes are started. The two crawler cranes positioned at the two ends of the outer truss adopt the same hook lifting speed, and the crawler crane positioned at the middle of the outer truss adopts a hook lifting speed that can keep dynamic balance with the two crawler cranes. One side of the outer chord members of the outer truss is hoisted and lifted. One side of the outer lower chord members of the outer truss is rotated through temporary members and three-way adjustable pin shaft supports until the outer truss is turned to the required angle and reaches the corresponding design position under the load working condition through the adjustment of the three-way adjustable pin shaft supports. Then, temporary vertical support frames are arranged between the outer truss and the ground to stably support the outer truss. Finally, the two ends and the two sides of the outer truss are connected with the steel frame and welded. After the outer truss is stabilized, the hooks of the three crawler cranes are removed.

[0023] The fifth step is to symmetrically install the upper chord connecting main beams between the top of the outer truss and the inner truss and the lower chord connecting main beams between the bottom of the outer truss and the inner truss from both ends to the middle by using a truck crane. The upper chord connecting main beams and the lower chord connecting main beams are divided into two batches for installation. In this step, the first batch of upper chord connecting main beams and lower chord connecting main beams are uniformly installed. After the installation of the first batch of upper chord connecting main beams and lower chord connecting main beams is completed, the outer truss and the inner truss form a stable structure, and the three crawler cranes hoisting the outer truss remove the hooks.

[0024] The sixth step is to symmetrically install the second batch of upper chord connecting main beams and lower chord connecting main beams from both ends to the middle by using a truck crane. The second batch of upper chord connecting main beams is installed in an interval and cross with the first batch of upper chord connecting main beams, and the second batch of lower chord connecting main beams is installed in an interval and cross with the first batch of lower chord connecting main beams.

[0025] The seventh step is to symmetrically install the upper chord diagonal supports between the upper chord connecting main beams and the lower chord diagonal supports between the lower chord connecting main beams from both ends to the middle by using a truck crane.

[0026] The eighth step is to symmetrically install the upper chord connecting secondary beams between the top of the outer truss and the inner truss and the lower chord connecting secondary beams between the bottom of the outer truss and the inner truss from both ends to the middle by using a truck crane.

[0027] The ninth step is to remove the temporary vertical support frames supported between the outer truss, the inner truss and the ground.

[0028] The tenth step is to check the horizontal displacement and vertical displacement of the outer truss and the inner truss. After the qualified requirements of the design and simulation calculation are met, the temporary vertical support frames are removed, and the truss structure installation is completed.

[0029] Further, in the first step, a plurality of temporary horizontal support frames are symmetrically arranged from both ends to the middle part when assembling the outer truss and the inner truss horizontally, and the outer truss and the inner truss are supported on the temporary horizontal support frames for assembly, and the outer truss and the inner truss are symmetrically assembled from the middle part to both sides.

[0030] Further, in the second step, the three-way adjustable pin shaft support includes a bottom plate, a first sliding rail groove, a second sliding rail groove, a base, a connecting seat and a pin shaft, the bottom plate is attached to a pre-buried steel plate on the ground reinforced concrete foundation and is fixedly connected to the pre-buried steel plate through pre-buried bolts, the second sliding rail groove is fixed on the bottom plate, the first sliding rail groove is limitingly and slidably connected to the second sliding rail groove and a polytetrafluoroethylene plate is arranged therebetween, the second sliding rail groove and the first sliding rail groove are arranged in a cross shape, the length direction of the second sliding rail groove is arranged along the left-right direction, the length direction of the first sliding rail groove is arranged along the inside-outside direction, and the first sliding rail groove can slide along the inside-outside direction on the second sliding rail groove; the base includes a base plate, the top surface of the base plate is perpendicularly fixed with a double lug plate, a strip-shaped hole is formed in the double lug plate, the base plate is limitingly and slidably connected to the first sliding rail groove and a polytetrafluoroethylene plate is arranged therebetween, and the base plate can slide along the left-right direction on the first sliding rail groove; the connecting seat includes a first connecting plate, the bottom surface of the first connecting plate is perpendicularly fixed with a single lug plate, a circular hole is formed in the single lug plate, the single lug plate is clamped between the double lug plate on the base, and the circular hole on the single lug plate is arranged in alignment with the strip-shaped hole on the double lug plate, and the pin shaft is inserted and connected in the aligned circular hole and strip-shaped hole; the end of the temporary rod is fixed with a second connecting plate, the second connecting plate is attached to the first connecting plate and is fixedly connected through bolts.

[0031] Further, in the second step, a set of pushing devices is arranged on the side of the three-way adjustable pin shaft support away from the truss, and a set of pushing devices is arranged on the left side or the right side of the three-way adjustable pin shaft support; the pushing device includes a backrest, a supporting seat, a screw jack and a backing plate, the backrest includes a backrest stand, a horizontal plate is fixed on the upper part of the back of the backrest stand, a push-resistant rib plate is fixed between the bottom surface of the horizontal plate and the back of the backrest stand, and the bottom ends of the backrest stand and the push-resistant rib plate are fixedly connected to the pre-buried steel plate on the ground reinforced concrete foundation; the supporting seat includes an I-beam section, a bracket is fixed on the upper flange of the I-beam section, one end of the I-beam section is fixedly connected to the front surface of the backrest stand, and the lower flange of the I-beam section is fixedly connected to the pre-buried steel plate on the ground reinforced concrete foundation; the screw jack is installed on the bracket, the cylinder bottom of the screw jack abuts against the upper part of the front surface of the backrest stand, the backing plate is installed on the end of the piston rod of the screw jack, and the backing plate abuts against the base of the three-way adjustable pin shaft support.

[0032] Further, in the third step, the crawler crane at the end of the inner frame truss is provided with three lifting points, which are an outer end of inner frame truss lifting point, a middle end of inner frame truss lifting point and an inner end of inner frame truss lifting point. The outer end of inner frame truss lifting point comprises an outer end of inner frame truss pin type lifting lug, an outer end of inner frame truss bracket beam and an outer end of inner frame truss inclined strut. The outer end of inner frame truss bracket beam is vertically fixed on the upper chord member of the inner frame and extends upwards along the upper chord member of the inner frame. The outer end of inner frame truss pin type lifting lug is fixed on the outer end of inner frame truss bracket beam. The outer end of inner frame truss inclined strut is fixed between the outer end of inner frame truss bracket beam and the upper chord member of the inner frame. The outer end of inner frame truss pin type lifting lug is connected with the hook of the crawler crane through the outer end of inner frame truss lifting cable. The outer end of inner frame truss pin type lifting lug is inclined towards the middle end of inner frame truss lifting point to ensure that the axis of the pin on the outer end of inner frame truss pin type lifting lug is perpendicular to the stress axis of the outer end of inner frame truss lifting cable. The middle end of inner frame truss lifting point comprises a middle end of inner frame truss pin type lifting lug. The middle end of inner frame truss pin type lifting lug is fixed on the upper chord member of the inner frame. The middle end of inner frame truss pin type lifting lug is connected with the hook of the crawler crane through the middle end of inner frame truss lifting cable. The middle end of inner frame truss pin type lifting lug is vertically arranged to ensure that the axis of the pin on the middle end of inner frame truss pin type lifting lug is perpendicular to the stress axis of the middle end of inner frame truss lifting cable. The inner end of inner frame truss lifting point comprises an inner end of inner frame truss pin type lifting lug, an inner end of inner frame truss bracket beam and an inner end of inner frame truss inclined strut. The inner end of inner frame truss bracket beam is vertically fixed on the upper chord member of the inner frame and extends downwards along the lower chord member of the inner frame. The inner end of inner frame truss pin type lifting lug is fixed on the inner end of inner frame truss bracket beam. The inner end of inner frame truss inclined strut is fixed between the inner end of inner frame truss bracket beam and the upper chord member of the inner frame. The inner end of inner frame truss pin type lifting lug is connected with the hook of the crawler crane through the inner end of inner frame truss lifting cable. The inner end of inner frame truss pin type lifting lug is inclined towards the middle end of inner frame truss lifting point to ensure that the axis of the pin on the inner end of inner frame truss pin type lifting lug is perpendicular to the stress axis of the inner end of inner frame truss lifting cable. The line connecting the outer end of inner frame truss pin type lifting lug, the middle end of inner frame truss pin type lifting lug and the inner end of inner frame truss pin type lifting lug is arranged in parallel with the ground.

[0033] The crawler crane at the middle of the inner frame truss is provided with one inner frame middle lifting point. The inner frame middle lifting point comprises an inner frame middle pin type lifting lug. The inner frame middle pin type lifting lug is fixed on the upper chord member of the inner frame. The inner frame middle pin type lifting lug is connected with the hook of the crawler crane through the inner frame middle lifting cable. The inner frame middle pin type lifting lug is vertically arranged to ensure that the axis of the pin on the inner frame middle pin type lifting lug is perpendicular to the stress axis of the inner frame middle lifting cable.

[0034] The inner frame truss is turned to the required angle and reaches the design position, and the specific process includes: S1. Slowly lifting the hook of the three crawler cranes, turning the inner frame truss by 5°, then stopping the hook, and moving the crawler cranes away from the inner frame truss hoisting point by a distance corresponding to the horizontal distance moved by the inner frame truss hoisting point due to the turning of the truss by 5°; S2. Slowly moving the three crawler cranes towards the inner frame truss by a distance corresponding to the horizontal distance moved by the inner frame truss hoisting point due to the turning of the truss by 5°, and stopping moving when in position; S3. Continuing to slowly lift the hook of the three crawler cranes, turning the inner frame truss by another 5°, then stopping the hook; S4. Continuing to slowly move the three crawler cranes forward by a distance corresponding to the horizontal distance moved by the inner frame truss hoisting point due to the turning of the truss by 5°, and stopping moving when in position; repeating the above S1 to S4 until the inner frame truss is turned to the required angle, and detecting the deviations in the horizontal, vertical and height directions of the installation and positioning of the inner frame truss, and adjusting the deviations using the adjusting function of the three-way adjustable pin shaft support and the pushing device when the deviations are too large, so that the inner frame truss is smoothly folded and welded with the steel frame columns on both sides, and the connection is accurate and meets the design and specification requirements.

[0035] Further, in the fourth step, the crawler crane at the end of the outer frame truss is provided with three lifting points, namely, an outer frame end outer side lifting point, an outer frame end middle lifting point and an outer frame end inner side lifting point. The outer frame end outer side lifting point comprises an outer frame end outer side pin shaft type lifting lug, an outer frame end outer side bracket beam and an outer frame end outer side inclined strut. The outer frame end outer side bracket beam is vertically fixed on the outer frame top chord member and extends downward along the lower direction of the outer frame top chord member. The outer frame end outer side pin shaft type lifting lug is fixed on the outer frame end outer side bracket beam. The outer frame end outer side inclined strut is fixed between the outer frame end outer side bracket beam and the outer frame top chord member. The outer frame end outer side pin shaft type lifting lug is connected with the hook of the crawler crane through an outer frame end outer side sling. The outer frame end outer side pin shaft type lifting lug is inclined towards the outer frame end middle lifting point to ensure that the axis of the pin shaft is perpendicular to the stress axis of the outer frame end outer side sling. The outer frame end middle lifting point comprises an outer frame end middle pin shaft type lifting lug. The outer frame end middle pin shaft type lifting lug is fixed on the outer frame top chord member. The outer frame end middle pin shaft type lifting lug is connected with the hook of the crawler crane through an outer frame end middle sling. The outer frame end middle pin shaft type lifting lug is vertically arranged to ensure that the axis of the pin shaft is perpendicular to the stress axis of the outer frame end middle sling. The outer frame end inner side lifting point comprises an outer frame end inner side pin shaft type lifting lug, an outer frame end inner side bracket beam and an outer frame end inner side inclined strut. The outer frame end inner side bracket beam is vertically fixed on the outer frame top chord member and extends upward along the upper direction of the outer frame top chord member. The outer frame end inner side pin shaft type lifting lug is fixed on the outer frame end inner side bracket beam. The outer frame end inner side inclined strut is fixed between the outer frame end inner side bracket beam and the outer frame top chord member. The outer frame end inner side pin shaft type lifting lug is connected with the hook of the crawler crane through an outer frame end inner side sling. The outer frame end inner side pin shaft type lifting lug is inclined towards the outer frame end middle lifting point to ensure that the axis of the pin shaft is perpendicular to the stress axis of the outer frame end inner side sling. The connecting line of the outer frame end outer side pin shaft type lifting lug, the outer frame end middle pin shaft type lifting lug and the outer frame end inner side pin shaft type lifting lug is arranged in parallel with the ground.

[0036] The crawler crane at the middle of the outer frame truss is provided with an outer frame middle lifting point. The outer frame middle lifting point comprises an outer frame middle pin shaft type lifting lug. The outer frame middle pin shaft type lifting lug is fixed on the outer frame top chord member. The outer frame middle pin shaft type lifting lug is connected with the hook of the crawler crane through an outer frame middle sling. The outer frame middle pin shaft type lifting lug is vertically arranged to ensure that the axis of the pin shaft is perpendicular to the stress axis of the outer frame middle sling.

[0037] The outer truss is turned to the required angle and reaches the design position, and the specific process includes: S1. Slowly lifting the hooks of the three crawler cranes, turning the outer truss by 5°, stopping the lifting of the hooks, and moving the crawler cranes away from the outer truss hoisting point by a distance corresponding to the horizontal distance moved by the outer truss hoisting point due to the turning of the truss by 5°; S2. Slowly moving the three crawler cranes towards the outer truss, moving a distance corresponding to the horizontal distance moved by the outer truss turning by 5°, and stopping moving when in place; S3. Continue to slowly lift the hooks of the three crawler cranes, continue to turn the outer truss by 5°, and stop lifting the hooks; S4. Continue to slowly move forward, move a distance corresponding to the horizontal distance moved by the outer truss turning by 5°, and stop moving when in place; repeat the above S1 to S4 until the outer truss is turned to the required angle, detect the deviation of the outer truss installation positioning in the transverse, longitudinal and height directions, and adjust it using the adjusting function of the three-way adjustable pin shaft support and the pushing device when the deviation is too large, so that it is smoothly folded and welded with the steel frame columns on both sides, and the connection accuracy and quality meet the design and specification requirements.

[0038] Further, in the third step, four temporary vertical support frames are supported between the inner chord of the inner truss and the ground, and the four temporary vertical support frames are centrally symmetrically arranged; in the fourth step, four temporary vertical support frames are supported between the outer chord of the outer truss and the ground, and the four temporary vertical support frames are centrally symmetrically arranged; four temporary vertical support frames are supported between the outer chord of the outer truss and the ground, and the four temporary vertical support frames are centrally symmetrically arranged.

[0039] Further, in the ninth step, the unloading adopts a step-by-step synchronous unloading method, the first unloading is to synchronously unload the support points formed by the connection of the four temporary members and the three-way adjustable pin shaft support, and the second unloading is to synchronously unload the six temporary vertical support frames supported on the middle part of the outer chord, the middle part of the outer chord and the middle part of the inner chord, and then synchronously unload the six temporary vertical support frames supported on both sides of the outer chord, both sides of the outer chord and both sides of the inner chord.

[0040] The gradual change type hyperbolic space truss structure corridor is designed scientifically and ingeniously, and with the unique structure design and hyperbolic surface shape, the corridor structure is stable and firm, and the appearance of the corridor is greatly enriched, and the safety and diversification requirements of modern buildings are met. The lifting and overturning installation method of the gradual change type hyperbolic space truss structure corridor has the core that the whole truss is horizontally assembled below the installation position, is supported by two ground three-direction adjustable pin shaft supports, is lifted and overturned by three crawler cranes, is adjusted to the corresponding design position, is folded, the connecting members and parts between the top chord and the bottom chord are installed in sequence, and finally, the partitions are unloaded synchronously. The method significantly reduces the amount of high-altitude operation, reduces the tonnage of the crane, improves the construction safety, the installation precision and the efficiency, and effectively saves the construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present application and, together with the description, serve to explain the principles of the application. It is to be understood that other specific arrangements can be utilized and that the generic description set forth in this disclosure is explained only the preferred embodiment.

[0042] Figure 1 It is the elevation view of the outer truss.

[0043] Figure 2 It is the elevation view of the inner truss.

[0044] Figure 3 It is the plan view of the upper chord connection system.

[0045] Figure 4 It is the plan view of the lower chord connection system.

[0046] Figure 5 It is the ground assembly arrangement plan view of the outer truss and the inner truss.

[0047] Figure 6 It is the temporary horizontal support frame arrangement plan view when the inner truss is assembled on the ground.

[0048] Figure 7 It is the temporary horizontal support frame supporting the inner truss upper chord member and the inner truss upper chord member lifting point elevation view.

[0049] Figure 8 It is the temporary horizontal support frame supporting the inner truss lower chord member elevation view.

[0050] Figure 9 It is the temporary horizontal support frame arrangement plan view when the outer truss is assembled on the ground.

[0051] Figure 10 It is the temporary horizontal support frame supporting the outer truss upper chord member and the outer truss upper chord member lifting point elevation view.

[0052] Figure 11Elevation view of the lower chord members of the outer frame supported by the temporary horizontal support frame.

[0053] Figure 12 This is a plan view of the internal truss hoisting process.

[0054] Figure 13 This is a plan view of the internal truss installation.

[0055] Figure 14 This is a plan view of the external truss hoisting process.

[0056] Figure 15 This is a plan view of the external truss installation.

[0057] Figure 16 Plan view for installing the first batch of upper chord connecting main beams.

[0058] Figure 17 Plan view for installing the first batch of lower chord connecting main beams.

[0059] Figure 18 Plan view for the installation of the second batch of upper chord connecting main beams.

[0060] Figure 19 Plan view for the installation of the second batch of lower chord connecting main beams.

[0061] Figure 20 Plan view for installing the upper chord diagonal support.

[0062] Figure 21 Plan view for installing the lower chord diagonal support.

[0063] Figure 22 Plan view for installing the upper chord connecting secondary beam.

[0064] Figure 23 Plan view for installing the lower chord connecting secondary beam.

[0065] Figure 24 This is an elevation view of the temporary vertical support frame supporting the inner truss.

[0066] Figure 25 This is an elevation view of the temporary vertical support frame supporting the external truss.

[0067] Figure 26 This is a cross-sectional view of the temporary vertical support frame supporting the inner and outer trusses.

[0068] Figure 27 This is the front view of the three-way adjustable pin support.

[0069] Figure 28 for Figure 27 AA section view in the image.

[0070] Figure 29 for Figure 27 BB section view in the middle.

[0071] Figure 30 Three view of the first slide rail groove.

[0072] Figure 31 Three view of the second slide rail groove.

[0073] Figure 32 Three view of the base.

[0074] Figure 33 Three view of the connecting seat.

[0075] Figure 34 Connection diagram of the three-way adjustable pin shaft support and the pushing device away from the side of the truss.

[0076] Figure 35 Connection diagram of the three-way adjustable pin shaft support and the pushing device on the left side or the right side thereof.

[0077] Figure 36 Three view of the backrest seat.

[0078] Figure 37 Three view of the support seat.

[0079] Figure 38 Three view of the Figure 7 Enlarged view of the outer side lifting point at the end of the middle column, the middle lifting point at the end of the inner column, the inner side lifting point at the end of the inner column, and the middle lifting point of the inner column.

[0080] Figure 39 Three view of the Figure 10 Enlarged view of the outer side lifting point at the end of the outer column, the middle lifting point at the end of the inner column, the inner side lifting point at the end of the outer column, and the middle lifting point of the outer column.

[0081] Figure 40 Overall three-dimensional structure diagram of the connection of the outer column truss, the inner column truss, the upper chord connection system, and the lower chord connection system Figure one .

[0082] Figure 41 Overall three-dimensional structure diagram of the connection of the outer column truss, the inner column truss, the upper chord connection system, and the lower chord connection system Figure two .

[0083] Figure 42 Overall three-dimensional structure diagram of the connection of the outer column truss, the inner column truss, the upper chord connection system, and the lower chord connection system Figure three .

[0084] Figure 43 Overall three-dimensional structure diagram of the connection of the outer column truss, the inner column truss, the upper chord connection system, and the lower chord connection system Figure four .

[0085] In the figure: 1-left steel frame, 1-1-left outer structural column, 1-2-left inner structural column; 2-right steel frame, 2-1-right outer structural column, 2-2-right inner structural column; 3-outer truss, 3-1-outer truss upper chord member, 3-2-outer truss lower chord member, 3-3-outer truss main diagonal member, 3-4-outer truss intermediate horizontal member, 3-5-outer truss auxiliary diagonal member; 4-inner truss, 4-1-inner truss upper chord member, 4-2-inner truss lower chord member, 4-3-inner truss main diagonal member, 4-4-inner truss intermediate horizontal member, 4-5-inner truss auxiliary diagonal member; 5-upper chord connection system, 5-1-upper chord connection main beam, 5-2-upper chord diagonal support, 5-3-upper chord connection secondary beam; 6-lower chord connection system, 6-1-lower chord connection main beam, 6-2-lower chord diagonal support, 6-3-lower chord connection secondary beam; 7-temporary member, 7-1-second connecting plate; 8-three-way adjustable pin shaft support, 8-1-bottom plate, 8-2-first sliding rail groove, 8-2-1-first notch baffle, 8-3-second sliding rail groove, 8-3-1-second notch baffle, 8-4-base, 8-4-1-base plate, 8-4-2-double lug plate, 8-4-3-strip hole, 8-4-4-strengthening rib plate, 8-5-connecting seat, 8-5-1-first connecting plate, 8-5-2-single lug plate, 8-5-3-round hole, 8-6-pin shaft, 8-7-polytetrafluoroethylene plate; 9-ground reinforced concrete foundation; 10-embedded bolt; 11-embedded steel plate; 12-temporary vertical support frame; 13-temporary horizontal support frame; 14-jacking device, 14-1-backrest seat, 14-1-1-backrest vertical plate, 14-1-2-horizontal plate, 14-1-3-pushing-resistant rib plate, 14-2-supporting seat, 14-2-1-I-beam section, 14-2-2-stand, 14-3-screw jack, 14-4-cushion plate; 15-inner truss end outer lifting point, 15-1-inner truss end outer pin shaft type lifting lug, 15-2-inner truss end outer bracket beam, 15-3-inner truss end outer inclined strut, 15-4-inner truss end outer sling; 16-inner truss end middle lifting point, 16-1-inner truss end middle pin shaft type lifting lug, 16-2-inner truss end middle sling; 17-inner truss end inner lifting point, 17-1-inner truss end inner pin shaft type lifting lug, 17-2-inner truss end inner bracket beam, 17-3-inner truss end inner inclined strut, 17-4-inner truss end inner sling; 18-inner truss middle lifting point, 18-1-inner truss middle pin shaft type lifting lug, 18-2-inner truss middle sling; 19-outer truss end outer lifting point, 19-1-outer truss end outer pin shaft type lifting lug, 19-2-outer truss end outer bracket beam, 19-3-outer truss end outer inclined strut, 19-4-outer truss end outer sling; 20-outer truss end middle lifting point, 20-1-outer truss end middle pin shaft type lifting lug, 20-2-outer truss end middle sling.21-outer column end inside lifting point, 21-1-outer column end inside pin type lifting lug, 21-2-outer column end inside bracket beam, 21-3-outer column end inside inclined strut, 21-4-outer column end inside sling; 22-outer column middle lifting point, 22-1-outer column middle pin type lifting lug, 22-2-outer column middle sling. DETAILED DESCRIPTION

[0086] In order to make the skilled in the art better understand the present application, the following further clearly and completely describes the present application in combination with the reference to the drawings and in combination with the embodiments. It should be noted that the features in the embodiments and the examples in the present application can be combined with each other without conflict.

[0087] In the description of the present application, it should be understood that the terms "left", "right", "inner", "outer", "upper", "lower", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Example 1

[0088] The present embodiment provides a large-span gradually changing hyperbolic space truss structure corridor, as shown in Figures 1 to 4 and Figures 40 to 43 , which comprises a left steel frame 1, a right steel frame 2, an outer column truss 3, an inner column truss 4, an upper chord connection system 5 and a lower chord connection system 6; the outer column truss 3 is fixedly installed between the outer side end of the left steel frame 1 and the outer side end of the right steel frame 2, the inner column truss 4 is fixedly installed between the inner side end of the left steel frame 1 and the inner side end of the right steel frame 2, the upper chord connection system 5 is fixedly installed between the top ends of the outer column truss 3 and the inner column truss 4, and the lower chord connection system 6 is fixedly installed between the bottom ends of the outer column truss 3 and the inner column truss 4. Further, Figures 1 to 4 are the four perspective plan structure diagrams of the whole connected by the outer column truss 3, the inner column truss 4, the upper chord connection system 5 and the lower chord connection system 6, wherein, Figure 1 is the elevation view of one side of the outer column truss 3, Figure 2 is the elevation view of one side of the inner column truss 4, Figure 3 is the plan view of one side of the upper chord connection system 5, Figure 4 is the plan view of one side of the lower chord connection system 6. Figures 40 to 43 are the four perspective plan structure diagrams of the whole connected by the outer column truss 3, the inner column truss 4, the upper chord connection system 5 and the lower chord connection system 6, wherein, Figure 40 is the perspective view of one side of the outer column truss 3, Figure 41 is the perspective view of one side of the inner column truss 4, Figure 42 andFigure 43 Two oblique perspective views of the outer truss 3 on one side. Figures 1 to 4 And Figures 40 to 43 The connection relationship of the outer truss 3, the inner truss 4, the upper chord connection system 5 and the lower chord connection system 6 is clearly and clearly shown.

[0089] The left steel frame 1 includes a left outer structure column 1-1 and a left inner structure column 1-2, the left outer structure column 1-1 is connected and fixed with the left end of the outer truss 3, and the left inner structure column 1-2 is connected and fixed with the left end of the inner truss 4.

[0090] The right steel frame 2 includes a right outer structure column 2-1 and a right inner structure column 2-2, the right outer structure column 2-1 is connected and fixed with the right end of the outer truss 3, and the right inner structure column 2-2 is connected and fixed with the left end of the inner truss 4.

[0091] The outer truss 3 is curved inward in the horizontal direction as a whole, and the vertical cross-sectional height of the outer truss 3 gradually decreases from both ends to the middle; the outer truss 3 includes an outer truss upper chord member 3-1 and an outer truss lower chord member 3-2, both of which are arranged in an inwardly curved arc shape, and the outer truss lower chord member 3-2 is also arranged in an upwardly curved arc shape, a plurality of outer truss main oblique members 3-3 are connected and fixed between the outer truss upper chord member 3-1 and the outer truss lower chord member 3-2, a plurality of outer truss intermediate horizontal members 3-4 are arranged in an upper and lower interval between the outer truss upper chord member 3-1 and the outer truss lower chord member 3-2, the outer truss intermediate horizontal members 3-4 are connected and fixed with the outer truss main oblique members 3-3, and a plurality of outer truss auxiliary oblique members 3-5 are connected and fixed between the outer truss intermediate horizontal member 3-4 located at the bottom and the outer truss lower chord member 3-2.

[0092] The inner truss 4 is curved inward in the horizontal direction as a whole, and the vertical cross-sectional height of the inner truss 4 gradually decreases from both ends to the middle; the inner truss 4 includes an inner truss upper chord member 4-1 and an inner truss lower chord member 4-2, both of which are arranged in an inwardly curved arc shape, and the inner truss lower chord member 4-2 is also arranged in an upwardly curved arc shape, a plurality of inner truss main oblique members 4-3 are connected and fixed between the inner truss upper chord member 4-1 and the inner truss lower chord member 4-2, a plurality of inner truss intermediate horizontal members 4-4 are arranged in an upper and lower interval between the inner truss upper chord member 4-1 and the inner truss lower chord member 4-2, the inner truss intermediate horizontal members 4-4 are connected and fixed with the inner truss main oblique members 4-3, and a plurality of inner truss auxiliary oblique members 4-5 are connected and fixed between the inner truss intermediate horizontal member 4-4 located at the bottom and the inner truss lower chord member 4-2.

[0093] The upper chord connection system 5 comprises upper chord connection main beams 5-1, which are provided with a plurality of and interval connection fixed between the outer chord member 3-1 and the inner chord member 4-1; the adjacent upper chord connection main beams 5-1 are provided with upper chord diagonal supports 5-2, both ends of the upper chord diagonal support 5-2 are respectively connected and fixed with the adjacent upper chord connection main beam 5-1 and the outer chord member 3-1 and the inner chord member 4-1; the adjacent upper chord connection main beams 5-1 are provided with a plurality of upper chord connection secondary beams 5-3, both ends of the upper chord connection secondary beam 5-3 are respectively connected and fixed with the outer chord member 3-1 and the inner chord member 4-1, and the upper chord connection secondary beam 5-3 is connected and fixed with the corresponding upper chord diagonal support 5-2.

[0094] The lower chord connection system 6 comprises lower chord connection main beams 6-1, which are provided with a plurality of and interval connection fixed between the outer chord member 3-2 and the inner chord member 4-2; the adjacent lower chord connection main beams 6-1 are provided with lower chord diagonal supports 6-2, both ends of the lower chord diagonal support 6-2 are respectively connected and fixed with the adjacent lower chord connection main beam 6-1 and the outer chord member 3-2 and the inner chord member 4-2; the adjacent lower chord connection main beams 6-1 are provided with a plurality of lower chord connection secondary beams 6-3, both ends of the lower chord connection secondary beam 6-3 are respectively connected and fixed with the outer chord member 3-2 and the inner chord member 4-2, and the lower chord connection secondary beam 6-3 is connected and fixed with the corresponding lower chord diagonal support 6-2.

[0095] The left outer structure column 1-1 in the left side steel frame 1 and the right outer structure column 2-1 in the right side steel frame 2 are outwardly inclined and have an angle of 76° with the ground, and after the two ends of the outer chord truss 3 are respectively connected and fixed with the left outer structure column 1-1 and the right outer structure column 2-1, the outer chord truss 3 is outwardly inclined as a whole and has an angle of 76° with the ground; the left inner structure column 1-2 in the left side steel frame 1 and the right inner structure column 2-2 in the right side steel frame 2 are vertically arranged, and after the two ends of the inner chord truss 4 are respectively connected and fixed with the left inner structure column 1-2 and the right inner structure column 2-2, the inner chord truss 4 is vertically arranged as a whole. Embodiment 2

[0096] The embodiment provides a hoisting and overturning installation method of the large-span gradually changing hyperbolic space truss structure corridor of the embodiment 1, as shown in the figure, comprising the following steps: Figures 5 to 39

[0097] The first step is to analyze and calculate the assembly and installation process of the large-span gradually changing hyperbolic space truss structure corridor, to establish a dynamic deformation compensation model based on the time-space load coupling effect according to the influence of the load in the construction process and the use process of the large-span gradually changing hyperbolic space truss structure corridor on the structure deformation, and to determine the initial form of the hyperbolic space truss (i.e. the outer chord truss 3 and the inner chord truss 4) during the ground assembly. ​

[0098] The whole turning positioning process is designed for the outer truss 3 and the inner truss 4, the reverse deduction method is used, the position of the outer truss 3 and the inner truss 4 in the ground assembly is simulated and analogized, and the initial shape of the hyperbolic space truss determined by the dynamic deformation compensation model of the coupling effect of time and space load in the ground assembly is consistent; temporary members 7 are added to the outer truss 3 and the inner truss 4 which have been installed and positioned, and support point three-way adjustable pin shaft supports 8 connected with the temporary members 7 are arranged on the ground, the outer truss 3 and the inner truss 4 can be turned over and laid down at a position with a certain height from the ground through the rotation of the support point three-way adjustable pin shaft supports 8, and temporary laying support frames 13 are supported between the ground and the bottom of the outer truss 3 and the inner truss 4, at this time, the middle part of the outer truss 3 is closest to the ground, and the farther to the two ends, the higher to the ground, and the two ends of the inner truss 4 are closest to the ground, and the farther to the middle part, the higher to the ground.

[0099] According to the position and shape of the outer truss 3 and the inner truss 4, the shape control coordinates of the outer truss 3 and the inner truss 4 are extracted, the assembly sequence is determined, the temporary laying support frames 13 used for supporting the outer truss 3 and the inner truss 4 in the assembly are arranged, and the bearing capacity of the temporary laying support frames 13 is calculated, and the influence of the deformation of the outer truss 3 and the inner truss 4 is calculated, so as to determine the structure, arrangement position and support elevation of the temporary laying support frames 13.

[0100] Second step: install the left steel frame 1 and the right steel frame 2, as shown in Figure 5 The position between the two steel frames is the truss segment positioning position, the outer truss 3 is assembled in a horizontal manner on the ground outside the truss segment positioning position, in the assembly, the outer truss upper chord member 3-1 of the outer truss 3 is located on the side away from the connecting line of the two steel frames, and the outer truss lower chord member 3-2 of the outer truss 3 is located on the side close to the connecting line of the two steel frames; the inner truss 4 is assembled in a horizontal manner on the ground inside the truss segment positioning position, the inner truss upper chord member 4-1 of the inner truss 4 is located on the side away from the connecting line of the two steel frames, and the inner truss lower chord member 4-2 of the inner truss 4 is located on the side close to the connecting line of the two steel frames.

[0101] In this step, when the outer truss 3 and the inner truss 4 are assembled in a horizontal manner, a plurality of temporary laying support frames 13 are symmetrically arranged from both ends to the middle part, and the outer truss 3 and the inner truss 4 are assembled by being supported on the temporary laying support frames 13, and the outer truss 3 and the inner truss 4 are symmetrically assembled from the middle part to both sides, as shown in Figures 6 to 11 .

[0102] Third step: as shown in Figure 5As shown, the temporary rod 7 is fixed at the position close to the two ends of the outer column truss 3 and towards the ground side, the temporary rod 7 is arranged to extend towards the direction of the two steel frame connecting lines, the end of the temporary rod 7 is beyond the lower chord rod 3-2 of the outer column and is connected with the pin shaft 8-6 on the three-way adjustable pin shaft support 8, the three-way adjustable pin shaft support 8 is fixedly connected with the ground reinforced concrete foundation 9 at the corresponding position through the embedded bolt 10 and the embedded steel plate 11, the arrangement of the temporary rod 7 and the three-way adjustable pin shaft support 8 forms the support point for connecting the outer column truss 3 with the ground, through the action of the pin shaft 8-6 at the support point, the outer column truss 3 has the function of rotating as a whole with the pin shaft 8-6 as the axis; the temporary rod 7 is fixed at the position close to the two ends of the inner column truss 4 and towards the ground side, the temporary rod 7 is arranged to extend towards the direction of the two steel frame connecting lines, the end of the temporary rod 7 is beyond the lower chord rod 4-2 of the inner column and is connected with the pin shaft 8-6 on the three-way adjustable pin shaft support 8, the three-way adjustable pin shaft support 8 is fixedly connected with the ground reinforced concrete foundation 9 at the corresponding position through the embedded bolt 10 and the embedded steel plate 11, the arrangement of the temporary rod 7 and the three-way adjustable pin shaft support 8 forms the support point for connecting the inner column truss 4 with the ground, through the action of the pin shaft 8-6 at the support point, the inner column truss 4 has the function of rotating as a whole with the pin shaft 8-6 as the axis.

[0103] In this step, as Figures 27 to 33As shown, the three-way adjustable pin shaft support 8 includes a bottom plate 8-1, a first sliding rail groove 8-2, a second sliding rail groove 8-3, a base 8-4, a connecting seat 8-5, and a pin shaft 8-6, the bottom plate 8-1 is attached to the embedded steel plate 11 on the ground reinforced concrete foundation 9 and is fixedly connected to the embedded steel plate 11 through embedded bolts 10, the second sliding rail groove 8-3 is fixed on the bottom plate 8-1, the first sliding rail groove 8-2 is limitingly and slidingly connected to the second sliding rail groove 8-3, and a polytetrafluoroethylene plate 8-7 is arranged between the first sliding rail groove 8-2 and the second sliding rail groove 8-3; both the first sliding rail groove 8-2 and the second sliding rail groove 8-3 adopt a U-shaped groove structure, first slot baffle plates 8-2-1 are respectively installed on the top of the vertical plates on both sides of the first sliding rail groove 8-2 through bolts, the U-shaped groove structure of the first sliding rail groove 8-2 and the first slot baffle plates 8-2-1 form a limiting sliding groove structure, second slot baffle plates 8-3-1 are respectively installed on the top of the vertical plates on both sides of the second sliding rail groove 8-3 through bolts, the U-shaped groove structure of the second sliding rail groove 8-3 and the second slot baffle plates 8-3-1 form a limiting sliding groove structure, the second sliding rail groove 8-3 and the first sliding rail groove 8-2 are arranged in a cross shape, the length direction of the second sliding rail groove 8-3 is arranged along the left-right direction, the length direction of the first sliding rail groove 8-2 is arranged along the inside-outside direction, and the first sliding rail groove 8-2 can limitingly slide on the second sliding rail groove 8-3 along the inside-outside direction; the base 8-4 includes a base plate 8-4-1, a double lug plate 8-4-2 is vertically fixed to the top surface of the base plate 8-4-1, a strip-shaped hole 8-4-3 is formed in the double lug plate 8-4-2, a reinforcing rib plate 8-4-4 is fixed between the outer side surface of the double lug plate 8-4-2 and the top surface of the base plate 8-4-1, the base plate 8-4-1 is limitingly and slidingly connected to the first sliding rail groove 8-2, and a polytetrafluoroethylene plate 8-7 is arranged between the base plate 8-4-1 and the first sliding rail groove 8-2, and the base plate 8-4-1 can limitingly slide on the first sliding rail groove 8-2 along the left-right direction; the connecting seat 8-5 includes a first connecting plate 8-5-1, a single lug plate 8-5-2 is vertically fixed to the bottom surface of the first connecting plate 8-5-1, a circular hole 8-5-3 is formed in the single lug plate 8-5-2, the single lug plate 8-5-2 is clamped between the double lug plate 8-4-2 on the base 8-4, and the circular hole 8-5-3 on the single lug plate 8-5-2 is arranged in alignment with the strip-shaped hole 8-4-3 on the double lug plate 8-4-2, and the pin shaft 8-6 is inserted and connected in the aligned circular hole 8-5-3 and strip-shaped hole 8-4-3; the end of the temporary rod member 7 is fixedly connected with the second connecting plate 7-1, and the second connecting plate 7-1 is attached to the first connecting plate 8-5-1 and is fixedly connected through bolts.

[0104] As Figures 34 to 37As shown, a set of pushing devices 14 is arranged on the side of the three-way adjustable pin shaft support 8 away from the truss, and a set of pushing devices 14 is arranged on the left side or the right side of the three-way adjustable pin shaft support 8; the pushing device 14 comprises a backrest seat 14-1, a support seat 14-2, a screw jack 14-3 and a backing plate 14-4, the backrest seat 14-1 comprises a backrest stand 14-1-1, a horizontal plate 14-1-2 is fixed on the upper part of the back of the backrest stand 14-1-1, an anti-push rib plate 14-1-3 is fixed between the bottom surface of the horizontal plate 14-1-2 and the back of the backrest stand 14-1-1, and the bottom ends of the backrest stand 14-1-1 and the anti-push rib plate 14-1-3 are fixedly connected with the pre-buried steel plate 11 on the ground reinforced concrete foundation 9; the support seat 14-2 comprises an I-beam section 14-2-1, a bracket 14-2-2 is fixed on the upper flange of the I-beam section 14-2-1, one end of the I-beam section 14-2-1 is fixedly connected with the front face of the backrest stand 14-1-1, and the lower flange of the I-beam section 14-2-1 is fixedly connected with the pre-buried steel plate 11 on the ground reinforced concrete foundation 9; the screw jack 14-3 is fixedly installed on the bracket 14-2-2, the cylinder bottom of the screw jack 14-3 abuts on the upper part of the front face of the backrest stand 14-1-1, and the backing plate 14-4 is installed on the piston rod end of the screw jack 14-3 and abuts on the base 8-4 of the three-way adjustable pin shaft support 8.

[0105] The fourth step is to hoist the inner truss 4, as shown in Figure 12 and Figure 13 shown, three crawler cranes are respectively arranged on the inner chord member 4-1 outside of the inner truss 4 according to the lifting point positions of the lifting standing positions calculated and determined according to the load distribution, the lifting point positions on the inner chord member 4-1 are connected with the hooks of the three crawler cranes through lifting ropes, the three crawler cranes are started to hook during hoisting, two crawler cranes located at both ends of the inner truss 4 adopt the same hooking speed, and the crawler crane located at the middle of the inner truss 4 adopts a hooking speed that can keep dynamic balance with the hooking speeds of the two crawler cranes, one side of the inner chord member 4-1 of the inner truss 4 is hoisted and rises, one side of the inner chord member 4-2 of the inner truss 4 is rotated through the temporary member 7 and the three-way adjustable pin shaft support 8, until the inner truss 4 is turned to the required angle, and the corresponding design position under the load working condition is reached through the adjustment of the three-way adjustable pin shaft support 8, then the temporary vertical support frame 12 is arranged between the inner truss 4 and the ground to stably support the inner truss 4, specifically, as shown in Figure 24 and Figure 26 shown, four temporary vertical support frames 12 are arranged between the inner chord member 4-2 of the inner truss 4 and the ground, and the four temporary vertical support frames 12 are centrally symmetrically arranged, finally, the steel frames at both ends and both sides of the inner truss 4 are butted and welded, and the three crawler cranes are unhooked after the inner truss 4 is kept stable.

[0106] In this step, the crawler crane at the end of the inner frame truss 4 is provided with three lifting points, as shown in Figure 7 and Figure 38 , respectively, the inner frame end outer lifting point 15, the inner frame end middle lifting point 16, and the inner frame end inner lifting point 17. The inner frame end outer lifting point 15 includes an inner frame end outer pin type lifting lug 15-1, an inner frame end outer corbel beam 15-2, and an inner frame end outer inclined strut 15-3. The inner frame end outer corbel beam 15-2 is vertically fixed to the inner frame top chord member 4-1 and extends upward along the upward direction of the inner frame top chord member 4-1. The inner frame end outer pin type lifting lug 15-1 is fixed to the inner frame end outer corbel beam 15-2. The inner frame end outer inclined strut 15-3 is fixed between the inner frame end outer corbel beam 15-2 and the inner frame top chord member 4-1. The inner frame end outer pin type lifting lug 15-1 is connected to the hook of the crawler crane through an inner frame end outer sling 15-4. The inner frame end outer pin type lifting lug 15-1 is inclined towards the inner frame end middle lifting point 16 to ensure that the axis of the pin on it is perpendicular to the stress axis of the inner frame end outer sling 15-4. The inner frame end middle lifting point 16 includes an inner frame end middle pin type lifting lug 16-1, which is fixed to the inner frame top chord member 4-1. The inner frame end middle pin type lifting lug 16-1 is connected to the hook of the crawler crane through an inner frame end middle sling 16-2. The inner frame end middle pin type lifting lug 16-1 is vertically arranged to ensure that the axis of the pin on it is perpendicular to the stress axis of the inner frame end middle sling 16-2. The inner frame end inner lifting point 17 includes an inner frame end inner pin type lifting lug 17-1, an inner frame end inner corbel beam 17-2, and an inner frame end inner inclined strut 17-3. The inner frame end inner corbel beam 17-2 is vertically fixed to the inner frame top chord member 4-1 and extends downward along the downward direction of the inner frame top chord member 4-1. The inner frame end inner pin type lifting lug 17-1 is fixed to the inner frame end inner corbel beam 17-2. The inner frame end inner inclined strut 17-3 is fixed between the inner frame end inner corbel beam 17-2 and the inner frame top chord member 4-1. The inner frame end inner pin type lifting lug 17-1 is connected to the hook of the crawler crane through an inner frame end inner sling 17-4. The inner frame end inner pin type lifting lug 17-1 is inclined towards the inner frame end middle lifting point 16 to ensure that the axis of the pin on it is perpendicular to the stress axis of the inner frame end inner sling 17-4. The line connecting the inner frame end outer pin type lifting lug 15-1, the inner frame end middle pin type lifting lug 16-1, and the inner frame end inner pin type lifting lug 17-1 is arranged parallel to the ground.

[0107] The crawler crane in the middle of the inner frame truss 4 is provided with an inner frame middle lifting point 18, which includes an inner frame middle pin lifting lug 18-1 fixed on the upper chord member 4-1 of the inner frame, and is connected with the lifting hook of the crawler crane through an inner frame middle sling 18-2. The inner frame middle pin lifting lug 18-1 is vertically arranged to ensure that the axis of the pin on it is perpendicular to the stress axis of the inner frame middle sling 18-2.

[0108] The inner frame truss 4 is flipped to the required angle and reaches the designed position through the following specific process: S1. The three crawler cranes slowly lift the hook, and after the inner frame truss 4 is flipped by 5°, the lifting of the hook is stopped. The crawler cranes are away from the lifting point of the inner frame truss 4 by a distance corresponding to the horizontal distance moved by the lifting point of the inner frame truss 4 due to the truss being flipped by 5°; S2. The three crawler cranes slowly move towards the inner frame truss 4 by a distance corresponding to the horizontal distance moved by the inner frame truss 4 due to the truss being flipped by 5°, and the movement is stopped after reaching the position; S3. The three crawler cranes continue to slowly lift the hook, and after the inner frame truss 4 is continuously flipped by 5°, the lifting of the hook is stopped; S4. The three crawler cranes continue to slowly move forward by a distance corresponding to the horizontal distance moved by the inner frame truss 4 due to the truss being flipped by 5°, and the movement is stopped after reaching the position; the above S1 to S4 are repeated until the inner frame truss 4 is flipped to the required angle. The deviations in the transverse, longitudinal and height directions of the installation and positioning of the inner frame truss 4 are detected, and when the deviations are excessive, the adjustment functions of the three-way adjustable pin support 8 and the pushing device 14 are used for adjustment, so that the inner frame truss 4 is smoothly folded and welded with the steel frame columns on both sides, and the connection accuracy and quality meet the design and specification requirements.

[0109] When the inner frame truss 4 is excessively deviated, the adjustment method of the three-way adjustable pin support 8 and the pushing device 14 for the deviations in the transverse, longitudinal and height directions of the inner frame truss 4 is as follows:

[0110] The pushing device 14 away from the truss side of the three-way adjustable pin support 8 adjusts the longitudinal deviation of the inner frame truss 4, specifically: the screw jack 14-3 in the pushing device 14 gives or removes a pushing force to the base 8-4 in the three-way adjustable pin support 8 through the extension and retraction of the piston rod thereof, and the pushing force or the removed force is transmitted to the first sliding groove 8-2 through the base 8-4, so that the first sliding groove 8-2 slides in the limit on the second sliding groove 8-3 in the inside-out direction (i.e. the longitudinal direction), and finally the purpose of adjusting the longitudinal deviation of the inner frame truss 4 is achieved.

[0111] The pushing device 14 on the left side or the right side of the three-way adjustable pin shaft support 8 adjusts the lateral deviation of the inner frame truss 4 through the three-way adjustable pin shaft support 8, specifically: the screw jack 14-3 in the pushing device 14 gives a pushing force or a releasing force to the base 8-4 in the three-way adjustable pin shaft support 8 through the extension and retraction of the piston rod, so that the base plate 8-4-1 of the base 8-4 can slide in the left-right direction (i.e. the lateral direction) in the first sliding groove 8-2, and finally the purpose of adjusting the lateral deviation of the inner frame truss 4 is achieved.

[0112] The deviation of the inner frame truss 4 in the height direction is adjusted through the base 8-4 and the connecting seat 8-5, specifically: the inner frame truss 4 is pulled up or lowered by the crawler crane, the inner frame truss 4 drives the temporary member 7 to move up or down, the temporary member 7 drives the connecting seat 8-5 to move up or down, the connecting seat 8-5 drives the pin shaft 8-6 to move up or down in the strip hole in the double lug plate 8-4-2, and finally the purpose of adjusting the deviation of the inner frame truss 4 in the height direction is achieved.

[0113] The fifth step: after the inner frame truss 4 is hoisted, welded and connected, the outer frame truss 3 is hoisted, as shown in Figure 14 and Figure 15 Three crawler cranes stand on the outside of the outer frame top chord member 3-1 of the outer frame truss 3 according to the lifting point position of the load distribution calculation and determination, the lifting point position on the outer frame top chord member 3-1 is connected with the hooks of the three crawler cranes through the lifting ropes, and the three crawler cranes are started to hook during hoisting, two crawler cranes located at both ends of the outer frame truss 3 adopt the same hooking speed, and one crawler crane located in the middle of the outer frame truss 3 adopts a hooking speed that can keep dynamic balance with the hooking speed of the two crawler cranes, one side of the outer frame top chord member 3-1 of the outer frame truss 3 is hoisted and rises, one side of the outer frame bottom chord member 3-2 of the outer frame truss 3 is rotated through the temporary member 7 and the three-way adjustable pin shaft support 8, until the outer frame truss 3 is turned to the required angle, and reaches the corresponding design position under the load working condition through the adjustment of the three-way adjustable pin shaft support 8, then temporary vertical support frames 12 are arranged between the outer frame truss 3 and the ground to stably support the outer frame truss 3, specifically: as shown in Figure 25 and Figure 26 Four temporary vertical support frames 12 are supported between the outer frame bottom chord member 3-2 of the outer frame truss 3 and the ground, and the four temporary vertical support frames 12 are centrally symmetrically arranged, four temporary vertical support frames 12 are supported between the outer frame top chord member 3-1 of the outer frame truss 3 and the ground, and the four temporary vertical support frames 12 are centrally symmetrically arranged; finally, the steel frames at both ends and both sides of the outer frame truss 3 are butted and welded, and the three crawler cranes are unhooked after the outer frame truss 3 is kept stable.

[0114] In this step, three lifting points are provided for the crawler cranes located at the end of the outer frame truss 3, as shown in Figure 10 and Figure 39As shown, the outer column end outer lifting point 19, the outer column end middle lifting point 20, and the outer column end inner lifting point 21 are respectively provided, the outer column end outer lifting point 19 includes an outer column end outer pin type lifting lug 19-1, an outer column end outer corbel beam 19-2, and an outer column end outer inclined strut 19-3, the outer column end outer corbel beam 19-2 is vertically fixed on the outer column top chord member 3-1 and is arranged to extend downward along the lower direction of the outer column top chord member 3-1, the outer column end outer pin type lifting lug 19-1 is fixed on the outer column end outer corbel beam 19-2, the outer column end outer inclined strut 19-3 is fixed between the outer column end outer corbel beam 19-2 and the outer column top chord member 3-1, the outer column end outer pin type lifting lug 19-1 is connected with the hook of the caterpillar crane through an outer column end outer sling 19-4, and the outer column end outer pin type lifting lug 19-1 is arranged to be inclined to the direction of the outer column end middle lifting point 20 to ensure that the axis of the pin on the outer column end outer pin type lifting lug 19-1 is perpendicular to the stress axis of the outer column end outer sling 19-4; the outer column end middle lifting point 20 includes an outer column end middle pin type lifting lug 20-1, the outer column end middle pin type lifting lug 20-1 is fixed on the outer column top chord member 3-1, the outer column end middle pin type lifting lug 20-1 is connected with the hook of the caterpillar crane through an outer column end middle sling 20-2, and the outer column end middle pin type lifting lug 20-1 is arranged to be perpendicular to ensure that the axis of the pin on the outer column end middle pin type lifting lug 20-1 is perpendicular to the stress axis of the outer column end middle sling 20-2; the outer column end inner lifting point 21 includes an outer column end inner pin type lifting lug 21-1, an outer column end inner corbel beam 21-2, and an outer column end inner inclined strut 21-3, the outer column end inner corbel beam 21-2 is vertically fixed on the outer column top chord member 3-1 and is arranged to extend upward along the upper direction of the outer column top chord member 3-1, the outer column end inner pin type lifting lug 21-1 is fixed on the outer column end inner corbel beam 21-2, the outer column end inner inclined strut 21-3 is fixed between the outer column end inner corbel beam 21-2 and the outer column top chord member 3-1, the outer column end inner pin type lifting lug 21-1 is connected with the hook of the caterpillar crane through an outer column end inner sling 21-4, and the outer column end inner pin type lifting lug 21-1 is arranged to be inclined to the direction of the outer column end middle lifting point 20 to ensure that the axis of the pin on the outer column end inner pin type lifting lug 21-1 is perpendicular to the stress axis of the outer column end inner sling 21-4; and the line connecting the outer column end outer pin type lifting lug 19-1, the outer column end middle pin type lifting lug 20-1, and the outer column end inner pin type lifting lug 21-1 is arranged to be parallel to the ground.

[0115] The caterpillar crane located in the middle of the outer column truss 3 is provided with an outer column middle lifting point 22, the outer column middle lifting point 22 includes an outer column middle pin type lifting lug 22-1, the outer column middle pin type lifting lug 22-1 is fixed on the outer column top chord member 3-1, the outer column middle pin type lifting lug 22-1 is connected with the hook of the caterpillar crane through an outer column middle sling 22-2, and the outer column middle pin type lifting lug 22-1 is arranged to be perpendicular to ensure that the axis of the pin on the outer column middle pin type lifting lug 22-1 is perpendicular to the stress axis of the outer column middle sling 22-2.

[0116] The outer truss 3 is flipped to the required angle and reaches the design position, and the specific process includes: S1. The three crawler cranes slowly lift the hook, flip the outer truss 3 by 5°, stop lifting the hook, and move the crawler cranes away from the outer truss 3 hoisting point by a distance corresponding to the horizontal distance moved by the outer truss 3 hoisting point due to the truss being flipped by 5°; S2. The three crawler cranes slowly move towards the outer truss 3, and the moving distance is a horizontal distance corresponding to the outer truss 3 being flipped by 5°, and stop moving after reaching the position; S3. The three crawler cranes continue to slowly lift the hook, and continue to flip the outer truss 3 by 5°, and stop lifting the hook; S4. The three crawler cranes continue to slowly move forward, and the moving distance is a horizontal distance corresponding to the outer truss 3 being flipped by 5°, and stop moving after reaching the position; repeat the above S1 to S4 until the outer truss 3 is flipped to the required angle, detect the deviation of the outer truss 3 installation positioning in the transverse, longitudinal and height directions, and adjust the deviation of the outer truss 3 in the transverse, longitudinal and height directions by using the adjusting function of the three-way adjustable pin shaft support 8 and the pushing device 14 when the deviation is too large, so that the outer truss 3 is smoothly folded and welded with the steel frame columns on both sides, and the connection accuracy and quality meet the design and specification requirements.

[0117] When the outer truss 3 is too large, the adjustment method of the outer truss 3 in the transverse, longitudinal and height directions by using the three-way adjustable pin shaft support 8 and the pushing device 14 is the same as the adjustment method of the inner truss 4 in the third step.

[0118] Sixth step: the automobile crane is used to symmetrically install the upper chord connecting main beams 5-1 between the upper chords of the outer truss 3 and the inner truss 4 and the lower chord connecting main beams 6-1 between the lower chords from both ends to the middle, as shown in Figure 16 and Figure 17 The upper chord connecting main beams 5-1 and the lower chord connecting main beams 6-1 are divided into two batches for installation, and the first batch of upper chord connecting main beams 5-1 and lower chord connecting main beams 6-1 are installed in this step. After the installation of the first batch of upper chord connecting main beams 5-1 and lower chord connecting main beams 6-1 is completed, the outer truss 3 and the inner truss 4 form a stable structure, and the three crawler cranes for lifting the outer truss 3 are unhooked.

[0119] Seventh step: the automobile crane is used to symmetrically install the second batch of upper chord connecting main beams 5-1 and lower chord connecting main beams 6-1 from both ends to the middle, as shown in Figure 18 and Figure 19 The second batch of upper chord connecting main beams 5-1 and the first batch of upper chord connecting main beams 5-1 are installed in an interval and cross each other, and the second batch of lower chord connecting main beams 6-1 and the first batch of lower chord connecting main beams 6-1 are installed in an interval and cross each other.

[0120] Eighth step: the automobile crane is used to symmetrically install the upper chord diagonal supports 5-2 between the upper chord connecting main beams 5-1 and the lower chord diagonal supports 6-2 between the lower chord connecting main beams 6-1 from both ends to the middle, as shown inFigure 20 and Figure 21 as shown.

[0121] Ninth step: symmetrically install upper chord connecting secondary beam 5-3 between the top of outer truss 3 and inner truss 4 and lower chord connecting secondary beam 6-3 between the bottom of outer truss 3 and inner truss 4 from both ends to the middle by using automobile crane, as shown in Figure 22 and Figure 23 as shown.

[0122] Tenth step: unload temporary vertical support frame 12 supported between outer truss 3 and inner truss 4 and the ground.

[0123] In this step, the unloading is carried out by using the method of synchronous unloading in several times. The first unloading is to synchronously unload the support points formed by connecting four temporary members 7 and three-direction adjustable pin shaft support 8. The second unloading is to synchronously unload six temporary vertical support frames 12 supported in the middle of outer truss lower chord member 3-2, in the middle of outer truss upper chord member 3-1 and in the middle of inner truss lower chord member 4-2, and then to synchronously unload six temporary vertical support frames 12 supported on both sides of outer truss lower chord member 3-2, on both sides of outer truss upper chord member 3-1 and on both sides of inner truss lower chord member 4-2.

[0124] Eleventh step: check the horizontal displacement and vertical displacement of outer truss 3 and inner truss 4. When the qualified requirements of design and simulation calculation are met, remove temporary vertical support frame 12, and the installation of truss structure is completed.

[0125] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A gradient hyperbolic spatial truss structure connecting corridor, characterized in that: It includes a left steel frame (1), a right steel frame (2), an outer truss (3), an inner truss (4), an upper chord connection system (5), and a lower chord connection system (6); the outer truss (3) is fixedly installed between the outer end of the left steel frame (1) and the outer end of the right steel frame (2), the inner truss (4) is fixedly installed between the inner end of the left steel frame (1) and the inner end of the right steel frame (2), the upper chord connection system (5) is fixedly installed between the top of the outer truss (3) and the inner truss (4), and the lower chord connection system (6) is fixedly installed between the bottom of the outer truss (3) and the inner truss (4); The left steel frame (1) includes a left outer structural column (1-1) and a left inner structural column (1-2). The left outer structural column (1-1) is connected and fixed to the left end of the outer truss (3), and the left inner structural column (1-2) is connected and fixed to the left end of the inner truss (4). The right steel frame (2) includes a right outer structural column (2-1) and a right inner structural column (2-2). The right outer structural column (2-1) is connected and fixed to the right end of the outer truss (3), and the right inner structural column (2-2) is connected and fixed to the left end of the inner truss (4). The outer truss (3) is generally curved inward in the horizontal direction, and the vertical section height of the outer truss (3) gradually decreases from both ends to the middle; the outer truss (3) includes an outer upper chord member (3-1) and an outer lower chord member (3-2). Both the outer upper chord member (3-1) and the outer lower chord member (3-2) are curved inward, and the outer lower chord member (3-2) is also curved upward. Several outer main diagonal members (3-3) are fixedly connected between the members (3-2). Several outer middle horizontal members (3-4) are arranged vertically between the outer upper chord member (3-1) and the outer lower chord member (3-2). The outer middle horizontal members (3-4) are fixedly connected to the outer main diagonal members (3-3). Several outer secondary diagonal members (3-5) are fixedly connected between the outer middle horizontal member (3-4) at the bottom and the outer lower chord member (3-2). The inner truss (4) is generally curved inward in the horizontal direction, and the vertical section height of the inner truss (4) gradually decreases from both ends to the middle. The inner truss (4) includes an inner upper chord member (4-1) and an inner lower chord member (4-2). Both the inner upper chord member (4-1) and the inner lower chord member (4-2) are curved inward, and the inner lower chord member (4-2) is also curved upward. Multiple inner frame main diagonal members (4-3) are fixedly connected between the components (4-2). Multiple inner frame middle horizontal members (4-4) are arranged vertically between the inner frame upper chord member (4-1) and the inner frame lower chord member (4-2). The inner frame middle horizontal members (4-4) are fixedly connected to the inner frame main diagonal members (4-3). Multiple inner frame secondary diagonal members (4-5) are fixedly connected between the inner frame middle horizontal member (4-4) at the bottom and the inner frame lower chord member (4-2). The upper chord connection system (5) includes an upper chord connection main beam (5-1), which has multiple beams that are spaced apart and fixed between the outer upper chord member (3-1) and the inner upper chord member (4-1). An upper chord diagonal brace (5-2) is provided between adjacent upper chord connection main beams (5-1), and the two ends of the upper chord diagonal brace (5-2) are respectively connected to the adjacent upper chord connection main beam (5-1) and the outer upper chord member (4-1). The upper chord member (3-1) of the outer frame and the upper chord member (4-1) of the inner frame are connected and fixed; multiple upper chord connecting secondary beams (5-3) are provided between adjacent upper chord connecting main beams (5-1), and the two ends of the upper chord connecting secondary beams (5-3) are connected and fixed to the upper chord member (3-1) of the outer frame and the upper chord member (4-1) of the inner frame respectively. At the same time, the upper chord connecting secondary beams (5-3) are connected and fixed to the corresponding upper chord diagonal support (5-2); The lower chord connection system (6) includes a lower chord connection main beam (6-1), which has multiple beams and is fixedly connected at intervals between the outer lower chord member (3-2) and the inner lower chord member (4-2). A lower chord diagonal brace (6-2) is provided between adjacent lower chord connection main beams (6-1), and the two ends of the lower chord diagonal brace (6-2) are respectively connected to the adjacent lower chord connection main beam (6-1) and the outer lower chord member (4-2). The lower chord member (3-2) and the inner lower chord member (4-2) are connected and fixed; multiple lower chord connecting secondary beams (6-3) are provided between adjacent lower chord connecting main beams (6-1), and the two ends of the lower chord connecting secondary beams (6-3) are connected and fixed to the outer lower chord member (3-2) and the inner lower chord member (4-2) respectively. At the same time, the lower chord connecting secondary beams (6-3) are connected and fixed to the corresponding lower chord diagonal supports (6-2); The left outer structural column (1-1) in the left steel frame (1) and the right outer structural column (2-1) in the right steel frame (2) are inclined outward. After the two ends of the outer truss (3) are connected and fixed to the left outer structural column (1-1) and the right outer structural column (2-1) respectively, the outer truss (3) is inclined outward as a whole and the angle with the ground is 76°. The left inner structural column (1-2) in the left steel frame (1) and the right inner structural column (2-2) in the right steel frame (2) are vertically set. After the two ends of the inner truss (4) are connected and fixed to the left inner structural column (1-2) and the right inner structural column (2-2) respectively, the inner truss (4) is vertically set as a whole.

2. The gradually changing hyperbolic space truss structure connecting corridor as described in claim 1, characterized in that: The left outer structural column (1-1) in the left steel frame (1) and the right outer structural column (2-1) in the right steel frame (2) have an angle of 76° with the ground, and the outer truss (3) has an angle of 76° with the ground.

3. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor as described in claim 1 or 2, characterized in that, Includes the following steps: Step 1: Install the left steel frame (1) and the right steel frame (2). The position between the two steel frames is the truss section placement position. On the outer side of the truss section placement position, the outer truss (3) is assembled horizontally on the ground. During assembly, the outer upper chord member (3-1) of the outer truss (3) is located away from the line connecting the two steel frames, and the outer lower chord member (3-2) of the outer truss (3) is located close to the line connecting the two steel frames. On the inner side of the truss section placement position, the inner truss (4) is assembled horizontally on the ground. The inner upper chord member (4-1) of the inner truss (4) is located away from the line connecting the two steel frames, and the inner lower chord member (4-2) of the inner truss (4) is located close to the line connecting the two steel frames. Step 2: Temporary members (7) are fixed near both ends of the outer truss (3) and on the side facing the ground. The temporary members (7) extend in the direction of the line connecting the two steel frames. The ends of the temporary members (7) extend beyond the lower chord members (3-2) of the outer truss and are connected to the pins (8-6) on the three-way adjustable pin supports (8). The three-way adjustable pin supports (8) are fixedly connected to the ground reinforced concrete foundation (9) at the corresponding location by embedded bolts (10) and embedded steel plates (11). The temporary members (7) and the three-way adjustable pin supports (8) form the support points connecting the outer truss (3) to the ground. Through the action of the pins (8-6) at the support points, the outer truss (3) can rotate as a whole around the pins (8-6) as the axis. Function; Temporary members (7) are fixed at the two ends of the inner truss (4) and on the side facing the ground. The temporary members (7) extend in the direction of the line connecting the two steel frames. The end of the temporary members (7) extends beyond the lower chord member (4-2) of the inner truss and is connected to the pin (8-6) on the three-way adjustable pin support (8). The three-way adjustable pin support (8) is fixedly connected to the ground reinforced concrete foundation (9) of the corresponding part by pre-embedded bolts (10) and pre-embedded steel plates (11). The temporary members (7) and the three-way adjustable pin support (8) form the support point connecting the inner truss (4) to the ground. Through the action of the pin (8-6) at the support point, the inner truss (4) has the function of rotating as a whole around the pin (8-6) as the axis. Step 3: First, hoist the inner truss (4). Three crawler cranes stand on the outer side of the inner upper chord member (4-1) of the inner truss (4) according to the hoisting position calculated and determined by the load distribution. The hoisting position on the inner upper chord member (4-1) is connected to the hooks of the three crawler cranes through slings. When hoisting, start the three crawler cranes to lift the hooks. The two crawler cranes at both ends of the inner truss (4) use the same lifting speed. The crawler crane in the middle of the inner truss (4) uses a lifting speed that can maintain dynamic balance with the lifting of the two crawler cranes. The inner upper chord member (4) of the inner truss (4) 4-1) One side is lifted up, and the lower chord member (4-2) of the inner truss (4) is rotated by temporary member (7) and three-way adjustable pin support (8) until the inner truss (4) is flipped to the required angle. The corresponding design position under the load condition is achieved by adjusting the three-way adjustable pin support (8). Then, a temporary vertical support frame (12) is set between the inner truss (4) and the ground to provide stable support for the inner truss (4). Finally, the two ends of the inner truss (4) are joined and welded to the steel frames on both sides. After the inner truss (4) is stabilized, the three crawler cranes are unhooked. Step 4: After the inner truss (4) is hoisted and welded to a stable position, the outer truss (3) is hoisted. Three crawler cranes stand on the outer side of the upper chord member (3-1) of the outer truss (3) according to the load distribution calculation and the determined hoisting position. The hoisting position on the upper chord member (3-1) of the outer truss is connected to the hooks of the three crawler cranes through slings. When hoisting, the three crawler cranes start to lift the hooks. The two crawler cranes at both ends of the outer truss (3) use the same lifting speed, and the crawler crane in the middle of the outer truss (3) uses a lifting speed that can maintain dynamic balance with the lifting of the two crawler cranes. The outer truss ( 3) The upper chord member (3-1) of the outer frame is lifted and raised on one side. The lower chord member (3-2) of the outer frame (3) is rotated through the temporary member (7) and the three-way adjustable pin support (8) until the outer frame (3) is flipped to the required angle. The corresponding design position under the load condition is reached by adjusting the three-way adjustable pin support (8). Then, a temporary vertical support frame (12) is set between the outer frame (3) and the ground to provide stable support for the outer frame (3). Finally, the two ends of the outer frame (3) are joined and welded to the steel frames on both sides. After the outer frame (3) is stabilized, the three crawler cranes are unhooked. Step 5: Using a truck crane, install the upper chord connecting main beam (5-1) between the top of the outer truss (3) and the lower chord connecting main beam (6-1) between the bottom of the inner truss (4) symmetrically from both ends to the middle; the upper chord connecting main beam (5-1) and the lower chord connecting main beam (6-1) are installed in two batches. In this step, the first batch of upper chord connecting main beam (5-1) and lower chord connecting main beam (6-1) are evenly installed; after the first batch of upper chord connecting main beam (5-1) and lower chord connecting main beam (6-1) is installed, the outer truss (3) and the inner truss (4) form a stable structure, and the three crawler cranes that hoisted the outer truss (3) are unhooked; Step 6: Using a truck crane, the second batch of upper chord connecting main beams (5-1) and lower chord connecting main beams (6-1) are symmetrically installed from both ends toward the middle; the second batch of upper chord connecting main beams (5-1) are installed alternately and crosswise with the first batch of upper chord connecting main beams (5-1), and the second batch of lower chord connecting main beams (6-1) are installed alternately and crosswise with the first batch of lower chord connecting main beams (6-1). Step 7: Using a truck crane, install the upper chord diagonal supports (5-2) between the upper chord connecting main beams (5-1) and the lower chord diagonal supports (6-2) between the lower chord connecting main beams (6-1) symmetrically from both ends toward the middle. Step 8: Using a truck crane, install the upper chord connecting secondary beam (5-3) between the top of the outer truss (3) and the lower chord connecting secondary beam (6-3) between the bottom of the inner truss (4) symmetrically from both ends toward the middle. Step 9: Unload the temporary vertical support frame (12) between the outer truss (3) and the inner truss (4) and the ground. Step 10: Check the horizontal and vertical displacements of the outer truss (3) and the inner truss (4). After confirming that they meet the design and simulation requirements, remove the temporary vertical support frame (12) and the truss structure installation is complete.

4. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 3, characterized in that: In the first step, when the outer truss (3) and inner truss (4) are assembled horizontally, several temporary horizontal support frames (13) are symmetrically arranged from both ends to the middle. The outer truss (3) and inner truss (4) are assembled on the temporary horizontal support frames (13). When assembling the outer truss (3) and inner truss (4), they are assembled symmetrically from the middle to both sides.

5. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 3, characterized in that: In the second step, the three-way adjustable pin support (8) includes a base plate (8-1), a first slide rail groove (8-2), a second slide rail groove (8-3), a base (8-4), a connecting seat (8-5), and a pin (8-6). The base plate (8-1) is attached to the embedded steel plate (11) on the ground reinforced concrete foundation (9) and fixedly connected to the embedded steel plate (11) by embedded bolts (10). The second slide rail groove (8-3) is fixed on the base plate (8-1), and the first slide rail groove (8-2) is limited and slidably connected to the second slide rail groove (8-3). A polytetrafluoroethylene plate (8-7) is provided between the two. The second slide rail groove (8-3) and the first slide rail groove (8-2) are arranged in a cross shape. The length direction of the second slide rail groove (8-3) is set along the left and right direction, and the length direction of the first slide rail groove (8-2) is set along the inside and outside direction. The first slide rail groove (8-2) can slide in the inside and outside direction on the second slide rail groove (8-3). The base (8-4) includes a base plate (8-4-1). A double ear plate (8-4-2) is vertically fixed on the top surface of the base plate (8-4-1). (8-4-2) has a strip hole (8-4-3), the substrate (8-4-1) is slidably connected to the first slide rail groove (8-2) and a polytetrafluoroethylene plate (8-7) is provided between the two, the substrate (8-4-1) can slide in the left and right directions on the first slide rail groove (8-2); the connecting seat (8-5) includes a first connecting plate (8-5-1), the bottom surface of the first connecting plate (8-5-1) is vertically fixed with a single ear plate (8-5-2), and a round hole (8-5-3) is provided on the single ear plate (8-5-2). A single ear plate (8-5-2) is sandwiched between two ear plates (8-4-2) on the base (8-4), and the round hole (8-5-3) on the single ear plate (8-5-2) is aligned with the strip hole (8-4-3) on the double ear plate (8-4-2). A pin (8-6) is inserted into the aligned round hole (8-5-3) and strip hole (8-4-3). The end of the temporary rod (7) is fixed with a second connecting plate (7-1), and the second connecting plate (7-1) is attached to the first connecting plate (8-5-1) and fixed by bolts.

6. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 5, characterized in that: A set of jacking devices (14) is provided on the side of the three-way adjustable pin bearing (8) away from the truss. A set of jacking devices (14) is provided on the left or right side of the three-way adjustable pin bearing (8). The jacking device (14) includes a backrest (14-1), a support (14-2), a screw jack (14-3), and a pad (14-4). The backrest (14-1) includes a backrest upright plate (14-1-1). A horizontal plate (14-1-2) is fixed to the upper back of the back of the backrest upright plate (14-1-1). A thrust-resistant rib (14-1-3) is fixed between the bottom surface of the horizontal plate (14-1-2) and the back of the backrest upright plate (14-1-1). The bottom ends of the backrest upright plate (14-1-1) and the thrust-resistant rib (14-1-3) are both connected to the embedded steel plate on the ground reinforced concrete foundation (9). (11) Fixed connection; the support base (14-2) includes an I-beam segment (14-2-1), a bracket (14-2-2) is fixed on the upper flange of the I-beam segment (14-2-1), one end of the I-beam segment (14-2-1) is fixedly connected to the front of the backrest upright plate (14-1-1), and the lower flange of the I-beam segment (14-2-1) is fixedly connected to the pre-embedded steel plate (11) on the ground reinforced concrete foundation (9); the screw jack (14-3) is fixedly installed on the bracket (14-2-2), the bottom of the screw jack (14-3) abuts against the upper part of the front of the backrest upright plate (14-1-1), the pad (14-4) is installed at the end of the piston rod of the screw jack (14-3), and the pad (14-4) abuts against the base (8-4) of the three-way adjustable pin shaft support (8).

7. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 6, characterized in that: In the third step, the crawler crane located at the end of the inner truss (4) has three lifting points: the outer lifting point (15) of the inner truss end, the middle lifting point (16) of the inner truss end, and the inner lifting point (17) of the inner truss end. The outer lifting point (15) of the inner truss end includes the outer pin-type lifting lug (15-1), the outer corbel beam (15-2), and the outer diagonal brace (15-3). The outer corbel beam (15-2) of the inner truss end is vertically fixed to the upper chord member (4-1) of the inner truss and extends upward along the upper chord member (4-1). The outer pin-type lifting lug (15-1) of the inner truss end is fixed to the outer corbel beam (15-2). The outer diagonal brace (15-3) of the inner truss end is fixed to the outer corbel beam (15-2). The brace (15-3) is fixed between the outer corbel beam (15-2) and the upper chord member (4-1) of the inner frame end. The outer pin-type lifting lug (15-1) of the inner frame end is connected to the hook of the crawler crane through the outer sling (15-4) of the inner frame end. The outer pin-type lifting lug (15-1) of the inner frame end is inclined towards the middle lifting point (16) of the inner frame end to ensure that the axis of its upper pin is perpendicular to the force axis of the outer sling (15-4) of the inner frame end. The middle lifting point (16) of the inner frame end includes the middle pin-type lifting lug (16-1) of the inner frame end. The middle pin-type lifting lug (16-1) of the inner frame end is fixed on the upper chord member (4-1) of the inner frame end. -1) The inner end of the frame is connected to the hook of the crawler crane via the intermediate sling (16-2). The intermediate pin-type lifting lug (16-1) of the inner end of the frame is vertically set to ensure that the axis of its upper pin is perpendicular to the force axis of the intermediate sling (16-2) of the inner end of the frame. The inner end of the frame includes the inner end pin-type lifting lug (17-1), the inner end corbel beam (17-2), and the inner end diagonal brace (17-3). The inner end corbel beam (17-2) is vertically fixed to the upper chord member (4-1) of the inner frame and extends downward below the upper chord member (4-1). The inner end pin-type lifting lug (17-1) is fixed to the inner end corbel beam. On (17-2), the inner side diagonal brace (17-3) of the inner end of the inner frame is fixed between the inner side corbel beam (17-2) of the inner end of the inner frame and the upper chord member (4-1) of the inner frame. The inner side pin-type lifting lug (17-1) of the inner end of the inner frame is connected to the hook of the crawler crane through the inner side sling (17-4) of the inner end of the inner frame. The inner side pin-type lifting lug (17-1) of the inner end of the inner frame is inclined towards the middle lifting point (16) of the inner end of the inner frame to ensure that the axis of its upper pin is perpendicular to the force axis of the inner side sling (17-4) of the inner end of the inner frame. The line connecting the outer side pin-type lifting lug (15-1), the middle pin-type lifting lug (16-1), and the inner side pin-type lifting lug (17-1) of the inner end of the inner frame is set parallel to the ground. The crawler crane located in the middle of the inner truss (4) is equipped with an inner truss middle lifting point (18). The inner truss middle lifting point (18) includes an inner truss middle pin-type lifting lug (18-1). The inner truss middle pin-type lifting lug (18-1) is fixed on the inner truss upper chord member (4-1). The inner truss middle pin-type lifting lug (18-1) is connected to the hook of the crawler crane through the inner truss middle sling (18-2). The inner truss middle pin-type lifting lug (18-1) is set vertically to ensure that the axis of its upper pin is perpendicular to the force axis of the inner truss middle sling (18-2). The inner truss (4) is rotated to the required angle and reaches the design position. The specific process includes: S1. Three crawler cranes slowly lift the hooks, rotate the inner truss (4) by 5°, and then stop lifting the hooks. The crawler cranes move away from the lifting point of the inner truss (4) by a distance, which is the horizontal distance that the lifting point of the inner truss (4) moves corresponding to the truss rotation of 5°; S2. The three crawler cranes slowly move towards the inner truss (4), and the moving distance is the horizontal distance that the inner truss (4) moves corresponding to the truss rotation of 5°. After reaching the position, they stop moving; S3. The three crawler cranes continue to slowly lift the hooks, and rotate the inner truss (4) by 5°. S1. Continue to rotate 5° and then stop lifting the hook; S2. The three crawler cranes continue to move slowly forward, and the moving distance is the horizontal distance corresponding to the rotation of the inner truss (4) by 5°. After reaching the position, stop moving; repeat the above S1 to S4 cycle until the inner truss (4) is rotated to the required angle. Check the deviation of the inner truss (4) in the lateral, longitudinal and height directions of the installation and positioning. If the deviation is too large, use the adjustment function of the three-way adjustable pin support (8) and the jacking device (14) to adjust it so that it can be smoothly closed and welded to the steel frame columns on both sides. The connection accuracy and quality meet the design and specification requirements.

8. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 6, characterized in that: In the fourth step, the crawler crane located at the end of the outer truss (3) has three lifting points: the outer end lifting point (19), the middle lifting point (20), and the inner end lifting point (21). The outer end lifting point (19) includes the outer end pin-type lifting lug (19-1), the outer end corbel beam (19-2), and the outer end diagonal brace (19-3). The outer end corbel beam (19-2) is vertically fixed to the upper chord member (3-1) of the outer truss and extends downward along the lower part of the upper chord member (3-1). The outer end pin-type lifting lug (19-1) is fixed to the outer end corbel beam (19-2). The brace (19-3) is fixed between the outer corbel beam (19-2) and the upper chord member (3-1) of the outer frame end. The outer pin-type lifting lug (19-1) of the outer frame end is connected to the hook of the crawler crane through the outer sling (19-4) of the outer frame end. The outer pin-type lifting lug (19-1) of the outer frame end is inclined towards the middle lifting point (20) of the outer frame end to ensure that the axis of its upper pin is perpendicular to the force axis of the outer sling (19-4) of the outer frame end. The middle lifting point (20) of the outer frame end includes the middle pin-type lifting lug (20-1) of the outer frame end. The middle pin-type lifting lug (20-1) of the outer frame end is fixed on the upper chord member (3-1) of the outer frame end. -1) The outer end is connected to the hook of the crawler crane via the intermediate sling (20-2) at the end of the outer frame. The intermediate pin-type lifting lug (20-1) at the end of the outer frame is vertically set to ensure that the axis of its upper pin is perpendicular to the force axis of the intermediate sling (20-2) at the end of the outer frame. The inner lifting point (21) at the end of the outer frame includes the inner pin-type lifting lug (21-1), the inner corbel beam (21-2), and the inner diagonal brace (21-3). The inner corbel beam (21-2) at the end of the outer frame is vertically fixed to the upper chord member (3-1) of the outer frame and extends upward along the upper chord member (3-1). The inner pin-type lifting lug (21-1) at the end of the outer frame is fixed to the inner corbel beam. On (21-2), the inner diagonal brace (21-3) of the outer end is fixed between the inner corbel beam (21-2) of the outer end and the upper chord member (3-1) of the outer end. The inner pin-type lifting lug (21-1) of the outer end is connected to the hook of the crawler crane through the inner sling (21-4) of the outer end. The inner pin-type lifting lug (21-1) of the outer end is inclined towards the middle lifting point (20) of the outer end to ensure that the axis of its upper pin is perpendicular to the force axis of the inner sling (21-4) of the outer end. The line connecting the outer pin-type lifting lug (19-1), the middle pin-type lifting lug (20-1), and the inner pin-type lifting lug (21-1) of the outer end is parallel to the ground. A crawler crane located in the middle of the outer truss (3) is provided with an outer truss middle lifting point (22). The outer truss middle lifting point (22) includes an outer truss middle pin-type lifting lug (22-1). The outer truss middle pin-type lifting lug (22-1) is fixed on the outer truss upper chord member (3-1). The outer truss middle pin-type lifting lug (22-1) is connected to the hook of the crawler crane through the outer truss middle sling (22-2). The outer truss middle pin-type lifting lug (22-1) is set vertically to ensure that the axis of its upper pin is perpendicular to the force axis of the outer truss middle sling (22-2). The outer truss (3) is rotated to the required angle and reaches the design position. The specific process includes: S1. Three crawler cranes slowly lift the hooks, rotate the outer truss (3) by 5°, and then stop lifting the hooks. The crawler cranes move away from the lifting point of the outer truss (3) by a certain distance. This distance is the horizontal distance that the lifting point of the outer truss (3) moves corresponding to the truss rotation of 5°; S2. The three crawler cranes slowly move towards the outer truss (3). The moving distance is the horizontal distance that the outer truss (3) moves corresponding to the truss rotation of 5°. After reaching the position, they stop moving; S3. The three crawler cranes continue to slowly lift the hooks, rotating the outer truss (3) by 5°. S1. Continue to rotate 5° and then stop lifting the hook; S2. The three crawler cranes continue to move slowly forward, and the moving distance is the horizontal distance corresponding to the rotation of the outer truss (3) by 5°. Stop moving after reaching the position; repeat the above S1 to S4 cycle until the outer truss (3) is rotated to the required angle. Check the deviation of the outer truss (3) in the lateral, longitudinal and height directions of the installation and positioning. If the deviation is too large, use the adjustment function of the three-way adjustable pin support (8) and the jacking device (14) to adjust it so that it can be smoothly closed and welded to the steel frame columns on both sides. The connection accuracy and quality meet the design and specification requirements.

9. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 3, characterized in that: In the third step, the lower chord member (4-2) of the inner truss (4) is supported by four temporary vertical support frames (12) between the inner truss (4) and the ground, and the four temporary vertical support frames (12) are arranged in a centrally symmetrical manner; in the fourth step, the lower chord member (3-2) of the outer truss (3) is supported by four temporary vertical support frames (12) between the outer truss (3) and the ground, and the four temporary vertical support frames (12) are arranged in a centrally symmetrical manner; the upper chord member (3-1) of the outer truss (3) is supported by four temporary vertical support frames (12) between the outer truss (3) and the ground, and the four temporary vertical support frames (12) are arranged in a centrally symmetrical manner.

10. The lifting and flipping installation method for a gradient hyperbolic space truss structure corridor according to claim 9, characterized in that: In the ninth step, the unloading adopts a phased synchronous unloading method. The first unloading is to simultaneously unload the support points formed by the connection of four temporary rods (7) and three-way adjustable pin supports (8). The second unloading is to first simultaneously unload a total of six temporary vertical support frames (12) supported in the middle of the lower chord member (3-2) of the outer frame, the middle of the upper chord member (3-1) of the outer frame, and the middle of the lower chord member (4-2) of the inner frame. Then, the six temporary vertical support frames (12) supported on both sides of the lower chord member (3-2) of the outer frame, the two sides of the upper chord member (3-1) of the outer frame, and the two sides of the lower chord member (4-2) of the inner frame are unloaded simultaneously.

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