Super-large-span sealed storage yard structure for multiple stacker-reclaimers and its construction method

Abstract

The present invention discloses a super-large-span sealed storage yard structure for multiple stacker-reclaimers and its construction method. Without changing the stacker-reclaimer, the enclosed storage yard is improved, with a firm enclosed storage yard structure and low overall cost. Multiple truss columns are arranged horizontally and equidistantly in the middle of the storage yard. Each truss column is vertically arranged, and the lower end of the truss column is fixedly arranged on the embedded base. The tops of two adjacent truss columns are connected by a supporting beam. The upper chord frame is in an arc-shaped structure, and the two ends of the upper chord frame are respectively fixedly arranged at the two ends of the supporting beam. Main arch frames are arranged on both sides of the supporting beam. The main arch frames are also in an arc-shaped structure, and one end of the main arch frame is fixed on the supporting beam, and the other end longitudinally spans across the storage yard and is fixed on the ground at the edge of the storage yard. A membrane material is arranged outside the main arch frame. Sunlight panels are installed on both sides of the supporting beam corresponding to both sides of the upper chord frame, as well as on the top of the upper chord frame and the top of the supporting beam. The truss column and the supporting beam are both H-shaped steel bridge structures, and they have the same structural form.

Description

Technical Field

[0001] The present invention discloses a super-large-span sealed stockyard structure for multiple stacker-reclaimers and a construction method thereof, belonging to the technical field of stacker-reclaimers. Background Art

[0002] The distance between the blending stock reclaimer in the existing mechanized stockyard and the track bed of the adjacent primary stockyard bucket wheel reclaimer is relatively close, and the spatial relationship is extremely tense. Due to the insufficient net distance of the facilities, the existing equipment needs to be modified or replaced to meet the requirements of closed construction. A total of four sets of closed schemes are proposed:

[0003] Scheme 1: The full shortening of the counterweight of the bucket wheel reclaimer scheme (five-connected-span scheme); shorten the swing radius on the counterweight side, greatly increase the counterweight, modify the upper main structure accordingly, increase the wheel set, reuse the track, the height of the closed shed column is about 20m, and the transformation period is about 30 days per unit. In this scheme, the local steel structure of the reclaimer is cut and transformed. There is no precedent, the counterweight is too short, the equipment stability decreases, and there are risks.

[0004] Scheme 2: Do not shorten the bucket wheel counterweight + shorten the blending stock reclaimer scheme (five-connected-span scheme); similar to Scheme 1, set shed columns between two stockyards, and the columns are the common columns of adjacent sheds. Together with the existing closed shed, a five-connected-span is formed. The gauge of the reclaimer is shortened and transformed, and the storage capacity of the blending stockyard is greatly lost.

[0005] Scheme 3: Partially shorten the bucket wheel counterweight + shorten the blending stock reclaimer scheme (five-connected-span scheme); the gauge of the reclaimer is shortened and transformed. The number of sets of equipment to be transformed is the largest; the storage capacity of the blending stockyard is lost relatively large.

[0006] Scheme 4: B3 / B4 are jointly built into a large span (four-connected-span), the shed span is about 230m, and the structural technical difficulty is great. Due to the very large span, the shed roof is very high, but in terms of the equipment operation clearance requirements, such a high clearance requirement is not needed. Summary of the Invention

[0007] The present invention overcomes the deficiencies of the existing technology and provides a super-large-span sealed stockyard structure for multiple stacker-reclaimers and a construction method thereof. Without changing the stacker-reclaimer, the closed stockyard is improved, the closed stockyard structure is firm, and the overall cost is low.

[0008] To solve the above technical problems, the technical solution adopted by the present invention is as follows: An extra-large-span closed stockyard structure for multiple stacker-reclaimers, which includes truss columns, supporting beams, upper chord frames and main arch frames. A plurality of the truss columns are arranged horizontally and equidistantly in the middle of the stockyard, and each truss column is vertically arranged. Among them, the lower end of the truss column is fixedly arranged on the embedded base, and the tops of two adjacent truss columns are connected by a supporting beam. The upper chord frame is in an arc-shaped structure with the center facing downwards, and the two ends of the upper chord frame are respectively fixedly arranged at the two ends of the supporting beam. Main arch frames are arranged on both sides of the supporting beam. The main arch frame is also in an arc-shaped structure, and one end of the main arch frame is fixed on the supporting beam, and the other end of the main arch frame longitudinally crosses the stockyard and is fixed on the ground at the edge of the stockyard. A membrane material is arranged outside the main arch frame, and sunlight panels are installed on both sides of the supporting beam corresponding to both sides of the upper chord frame, as well as on the top of the upper chord frame and the top of the supporting beam;

[0009] Both the truss column and the supporting beam are H-shaped steel bridge structures, and their structural forms are the same, and both include:

[0010] Main beam bodies and transverse supports. A plurality of the main beam bodies are arranged longitudinally, parallelly and equidistantly. A plurality of transverse supports are arranged between the connected main beam bodies; the structure of the main beam body includes a main beam body, connecting plates and cover plates. Both the main beam body and the connecting plates are H-shaped steels. Two of the main beam bodies are arranged parallel to each other vertically in the vertical plane. A plurality of the connecting plates are arranged equidistantly between the two main beam bodies. The widths of the main beam body and the connecting plates are equal. The main beam body and the connecting plates are both longitudinally distributed so that the horizontal plates of the main beam body and the connecting plates can match correspondingly. A plurality of through holes are correspondingly arranged on the horizontal plates of the connecting parts of the main beam body and the connecting plates, and the main beam body and the connecting plates are connected together by bolts. The cover plates are plate-shaped structures including two specifications. A plurality of through holes are regularly distributed on the cover plates of the two specifications, and the cover plates of the two specifications are arranged alone or in combination on the upper and lower sides of the horizontal plates of the connecting parts of the main beam body and the connecting plates. The cover plates are distributed in a matrix on the main beam body and are fixed on the main beam body and the connecting plates by bolts. The two cover plates cooperate with the sides of the main beam body and / or the connecting plates to form a groove-shaped connecting groove;

[0011] The transverse support is in an H-shaped steel structure. The length of the horizontal plate of the transverse support is less than the length of the vertical plate. The two ends of the horizontal plate of the transverse support can be inserted into the connecting grooves on the two horizontal plates of the main beam body in a matching manner. At the same time, the vertical plate of the transverse support correspondingly abuts against the vertical plate of the main beam body. A plurality of through holes arranged on the horizontal plate of the transverse support correspond to the through holes on the cover plate, and the transverse support is fixed on the cover plate by bolts;

[0012] An angle steel is disposed at the intersection of the vertical plate of the transverse support and the vertical plate of the main beam body. A plurality of through holes are formed on two sides of the angle steel, and the through holes correspond to the through holes formed on the vertical plate of the transverse support and the vertical plate of the main beam body. The angle steel is fixed to the vertical plate of the transverse support and the vertical plate of the main beam body by bolts. A connecting support plate is horizontally disposed on the inner sides of two side plates of the angle steel. The connecting support plate is integrally formed with the angle steel. A through hole is formed on the connecting support plate, and a connecting rod is connected between two connecting support plates at diagonal positions in the same horizontal plane by bolts.

[0013] A reinforcing plate is disposed between two horizontal plates of the main beam body in a matching manner. The reinforcing plate is disposed perpendicular to the vertical plate of the main beam body and is fixedly welded to the vertical plate of the main beam body.

[0014] Steps are disposed on both the upper and lower sides of the end of the vertical plate of the transverse support. The height of the steps is equal to the thickness of the cover plate, so that a clamping groove formed by the cooperation of the steps and the horizontal plate of the transverse support is inserted into the cover plate in a matching manner.

[0015] Both the upper chord truss and the main arch truss are of truss structures, and are formed by arc-shaped main rods, connecting support rods and / or diagonal tension rods through bolts and / or welding.

[0016] A chamber is formed by the cooperation of the supporting beam, the upper chord truss and the sunlight plate. By installing doors and windows at corresponding positions of the sunlight plate, a control room or a temporary rest room for commanding the operation of the stacker-reclaimer can be formed.

[0017] A construction method for an extra-large-span sealed storage yard structure for multiple stacker-reclaimers according to the present invention is implemented according to the following steps:

[0018] The first step: embed bases at appropriate positions along the transverse direction in the middle of the storage yard and around the edge of the storage yard;

[0019] The second step: vertically fix the assembled truss columns in the middle of the storage yard; then fixedly connect the assembled supporting beam and the upper chord truss together by welding and / or bolts;

[0020] The third step: hoist and fix the fixedly-connected supporting beam and upper chord truss to the tops of two adjacent truss columns in sequence;

[0021] The fourth step: hoist and fix the assembled main arch truss on both sides of the supporting beam in sequence. One end of the main arch truss is fixed to the supporting beam, and the other end of the main arch truss longitudinally crosses the storage yard and is fixed to the ground at the edge of the storage yard;

[0022] The fifth step: fix a membrane material outside the main arch truss, and install sunlight plates on both sides of the supporting beam corresponding to both sides of the upper chord truss, on the top of the upper chord truss and on the top of the supporting beam, and the installation is completed.

[0023] Both the truss columns and the collar beams are of H-shaped steel bridge structures, and their assembly methods are the same, which are as follows:

[0024] The first step is the factory preparation stage;

[0025] Manufacture corresponding components according to the design dimensions, and weld multiple reinforcing plates at equal intervals on the vertical plate on one side of the main beam body for standby. Weld the connecting support plates on the inner sides of the two side plates of the angle steel for standby; Process steps at the upper and lower ends of the vertical plates of the transverse supports for standby;

[0026] The second step is the factory pre-assembly;

[0027] Fix a plurality of connecting plates distributed at equal intervals between the two main beam bodies through bolts, and fix cover plates at the upper and lower positions on both sides of the horizontal plate of the main beam body at the position where the connecting plates are located to form a main beam body;

[0028] The third step is the formal assembly at the actual installation site;

[0029] a. Arrange multiple main beam bodies in parallel, and set a plurality of transverse supports between two adjacent main beam bodies. Both ends of each transverse support are connected to the corresponding cover plates by bolts;

[0030] b. Set angle steel at the intersection of the transverse support and the main beam body, and connect and fix the angle steel to the transverse support and the main beam body by bolts;

[0031] c. In the frame formed by the transverse support and the main beam body, connect the two angle steels on the diagonal by bolts with a connecting rod.

[0032] Both ends of the connecting rod are provided with connecting through holes corresponding to the connecting support plates, and in each frame formed by the transverse support and the main beam body, one connecting rod is fixed on the upper side of the connecting support plate, and the other connecting rod is fixed on the lower side of the connecting support plate corresponding to the diagonal.

[0033] The connecting rod is of angle steel structure.

[0034] The beneficial effects of the present invention compared with the prior art are: Without changing the stacker-reclaimer, the present invention improves the enclosed stockyard. The structure of the enclosed stockyard is firm and the overall cost is low. Description of the Drawings

[0035] The following further describes the present invention with reference to the drawings.

[0036] Figure 1 It is a schematic structural diagram of the present invention.

[0037] Figure 2 It is a schematic diagram of the movement of the stacker-reclaimer in the stockyard in the present invention.

[0038] Figure 3 This is a schematic structural view of the truss column or the collar beam in the present invention.

[0039] Figure 4 is Figure 3 a schematic structural view of the main beam body in

[0040] Figure 5 is Figure 3 a schematic view of the lateral bracing in

[0041] Figure 6 is Figure 3 a schematic view of the connection between the bracing and the main beam body in

[0042] In the figure: 1 is the truss column, 11 is the main beam body, 111 is the main beam body proper, 112 is the connecting plate, 113 is the cover plate, 114 is the connecting groove, 12 is the lateral bracing, 13 is the angle steel, 14 is the connecting support plate, 15 is the connecting rod, 16 is the reinforcing plate, 17 is the step, 2 is the collar beam, 3 is the upper chord truss, 4 is the main arch truss. Detailed implementation manners

[0043] As Figure 1 , Figures 3 to 6 shown, the structure of the super-large-span enclosed stockyard for multiple stacker-reclaimers of the present invention includes truss columns 1, collar beams 2, upper chord trusses 3 and main arch trusses 4. A plurality of the truss columns 1 are arranged horizontally and equidistantly in the middle of the stockyard, and each of the truss columns 1 is vertically arranged. Among them, the lower end of the truss column 1 is fixedly arranged on the embedded base, and the tops of two adjacent truss columns 1 are connected by a collar beam 2. The upper chord truss 3 is in an arc structure with the center facing downwards, and the two ends of the upper chord truss 3 are respectively fixedly arranged at the two ends of the collar beam 2. Main arch trusses 4 are arranged on both sides of the collar beam 2. The main arch truss 4 is also in an arc structure, and one end of the main arch truss 4 is fixed on the collar beam 2, and the other end of the main arch truss 4 longitudinally spans across the stockyard and is fixed on the ground at the edge of the stockyard. A membrane material is arranged outside the main arch truss 4. Sunlight plates are installed on the corresponding sides of both sides of the collar beam 2 and the upper chord truss 3, as well as on the tops of the upper chord truss 3 and the collar beam 2; the front and rear sides of the main arch truss 4 can be blocked in the same way as in the prior art.

[0044] Both the truss column 1 and the collar beam 2 are of H-shaped steel bridge structures, and their structural forms are the same, and both include:

[0045] The main beam body 11 and the transverse support 12, a plurality of the main beam bodies 11 are arranged longitudinally in parallel at equal intervals, and a plurality of transverse supports 12 are arranged between the connected main beam bodies 11; the structure of the main beam body 11 includes a main beam body 111, a connecting plate 112, and a cover plate 113. Both the main beam body 111 and the connecting plate 112 are H-shaped steel. Two of the main beam bodies 111 are arranged parallel to each other vertically in a vertical plane. A plurality of the connecting plates 112 are arranged at equal intervals between the two main beam bodies 111. The widths of the main beam body 111 and the connecting plate 112 are equal. Both the main beam body 111 and the connecting plate 112 are distributed longitudinally, so that the horizontal plates of the main beam body 111 and the connecting plate 112 can be matched correspondingly. A plurality of through holes are correspondingly arranged on the horizontal plates of the connecting parts of the main beam body 111 and the connecting plate 112. The main beam body 111 and the connecting plate 112 are connected together by bolts. The cover plate 113 is a plate-like structure including two specifications. A plurality of through holes are regularly distributed on both of the cover plates 113 of the two specifications. And the cover plates 113 of the two specifications are arranged separately or in combination on the upper and lower sides of the horizontal plate of the connecting part of the main beam body 111 and the connecting plate 112. The cover plates 113 are distributed in a matrix on the main beam body 111 and are fixed on the main beam body 111 and the connecting plate 112 by bolts. The two cover plates 113 cooperate with the side surfaces of the main beam body 111 and / or the connecting plate 112 to form a groove-shaped connecting groove 114;

[0046] The transverse support 12 is of H-shaped steel structure. The length of the horizontal plate of the transverse support 12 is less than the length of the vertical plate. The two end parts of the horizontal plate of the transverse support 12 can be inserted into the connecting grooves 114 on the two horizontal plates of the main beam body 111 in a matching manner. At the same time, the vertical plate of the transverse support 12 is correspondingly abutted against the vertical plate of the main beam body 111. And a plurality of through holes arranged on the horizontal plate of the transverse support 12 correspond to the through holes on the cover plate 113, and the transverse support 12 is fixed on the cover plate 113 by bolts;

[0047] An angle steel 13 is arranged at the intersection of the vertical plate of the transverse support 12 and the vertical plate of the main beam body 111 in a matching manner. A plurality of through holes are arranged on the two side surfaces of the angle steel 13, and the through holes correspond to the through holes arranged on the vertical plate of the transverse support 12 and the vertical plate of the main beam body 111. The angle steel 13 is fixed together with the vertical plate of the transverse support 12 and the vertical plate of the main beam body 111 by bolts. Connecting support plates 14 are horizontally arranged on the inner sides of the two side plates of the angle steel 13. The connecting support plates 14 are integrally formed with the angle steel 13. Through holes are arranged on the connecting support plates 14. And connecting rods 15 are connected by bolts between the two connecting support plates 14 at the diagonal positions in the same horizontal plane.

[0048] A reinforcing plate 16 is arranged in a matching manner between two horizontal plates of the main beam body 111. The reinforcing plate 16 is arranged perpendicular to the vertical plate of the main beam body 111 and is fixedly welded to the vertical plate of the main beam body 111.

[0049] Steps 17 are arranged on both the upper and lower sides of the end of the vertical plate of the transverse support 12. The height of the step 17 is equal to the thickness of the cover plate 113, so that the clamping groove formed by the cooperation of the step 17 and the horizontal plate of the transverse support 12 is inserted into the cover plate 113 in a matching manner.

[0050] Both the upper chord frame 3 and the main arch frame 4 are truss structures, which are formed by arc main rods, connecting struts and / or diagonal tie rods through bolts and / or welding, and are conventional truss structure technologies.

[0051] A chamber is formed by the cooperation of the supporting beam 2, the upper chord frame 3 and the sunlight plate, and doors and windows are installed at the corresponding positions of the sunlight plate to form a control room or a temporary rest room for commanding the operation of the stacker-reclaimer.

[0052] A construction method for a super-large-span sealed storage yard structure for multiple stacker-reclaimers according to the present invention is implemented according to the following steps:

[0053] The first step: Select appropriate positions along the middle of the storage yard transversely and around the edge of the storage yard to embed the bases.

[0054] The second step: Vertically fix the assembled truss column 1 in the middle of the storage yard; then fixedly connect the assembled supporting beam 2 and the upper chord frame 3 together by welding and / or bolts.

[0055] The third step: Hoist the fixedly connected supporting beam 2 and the upper chord frame 3 to the tops of two adjacent truss columns 1 in sequence and fix them.

[0056] The fourth step: Hoist and fix the assembled main arch frame 4 on both sides of the supporting beam 2 in sequence, and one end of the main arch frame 4 is fixed on the supporting beam 2, and the other end of the main arch frame 4 longitudinally crosses the storage yard and is fixed on the ground at the edge of the storage yard.

[0057] The fifth step: A membrane material is fixed on the outside of the main arch frame 4, and sunlight plates are installed on both sides of the supporting beam 2 corresponding to both sides of the upper chord frame 3, on the top of the upper chord frame 3 and on the top of the supporting beam 2 to complete the installation.

[0058] Both the truss column 1 and the supporting beam 2 are H-shaped steel bridge structures, and their assembly methods are the same, specifically as follows:

[0059] The first step, the factory preparation stage;

[0060] Manufacture corresponding components according to the design dimensions, and weld multiple reinforcing plates 16 at equal intervals on the vertical plate on one side of the main beam body 111 for standby. Weld the connecting support plate 14 on the inner sides of the two side plates of the angle steel 13 for standby. Process steps 17 at the upper and lower ends of the vertical plates at both ends of the transverse support 12 for standby.

[0061] Step 2, pre-assembly in the factory;

[0062] A plurality of connecting plates 112 are fixedly arranged between the two main beam bodies 111 by bolts, and cover plates 113 are fixedly arranged on the upper and lower positions on both sides of the horizontal plate of the main beam body 111 where the connecting plates 112 are located, forming the main beam body 11;

[0063] Step 3, formal assembly at the actual installation site;

[0064] a. Arrange a plurality of main beam bodies 11 in parallel, and arrange a plurality of transverse supports 12 between two adjacent main beam bodies 11. Both ends of each transverse support 12 are connected to the corresponding cover plate 113 by bolts;

[0065] b. Set the angle steel 13 at the intersection of the transverse support 12 and the main beam body 11, and connect and fix the angle steel 13 to the transverse support 12 and the main beam body 11 by bolts;

[0066] c. In the frame formed by the transverse support 12 and the main beam body 11, connect the two angle steels 13 on the diagonal with bolts by using the connecting rod 15.

[0067] Both ends of the connecting rod 15 are provided with connecting through holes corresponding to the connecting support plate 14, and in each frame formed by the transverse support 12 and the main beam body 11, one connecting rod 15 is fixed on the upper side of the connecting support plate 14, and the other connecting rod 15 is fixed on the lower side of the corresponding diagonal connecting support plate 14.

[0068] The connecting rod 15 is of angle steel structure.

[0069] The working process of the stacker-reclaimer: As Figure 2As shown, the cantilever bucket wheel stacker-reclaimer adopts an intermittent walking + intermittent rotation operation mode. The stacker-reclaimer starts working from the edge of the stockyard, and the starting point is at point A as shown in the figure. It moves along the walking track from shaft ① to shaft ⑤. There is an impulse counter installed on the stacker-reclaimer. The upper slewing mechanism of the stacker-reclaimer rotates along the direction of arrow 1 in the figure. The stacker-reclaimer can rotate and stack or reclaim materials randomly before moving to point B. When it moves to point B, the impulse counter records that the walking distance reaches the pre-set number of meters. At this time, the walking mechanism of the stacker-reclaimer stops advancing, and the upper slewing mechanism rotates along the direction of arrow 2 as shown in the figure to the position shown in the figure. Then the walking mechanism starts to move forward. When it moves to position C, the upper slewing mechanism can rotate along the directions of arrows 3 and 4 as shown in the figure or in the reverse direction.

[0070] The principle of the closed transformation of the stockyard involved in the present invention is to carry out the transformation without stopping production online on the premise of ensuring the unchanged functions of the stockyard. The mechanized stockyard enclosure includes the enclosure of 8 stock strips, the transformation of stacking and reclaiming equipment, etc. The basic enclosure plan is that the upper part is made of steel structure and the lower part is made of concrete short columns. The short columns of the enclosed factory building adopt pile foundations, and the roof enclosure uses membrane materials. The present invention also involves the transformation of power distribution, lighting, lightning protection facilities and telecommunications systems. As well as the roof rainwater collection and drainage system, rainwater collection and pretreatment facilities and supporting gates, pumping stations, water pumps, etc. There is also the allocation of fire fighting equipment (fire extinguishers are equipped), as well as the demolition and reconstruction of existing buildings (structures).

[0071] The present invention will be further elaborated below in conjunction with specific embodiments.

[0072] The H-shaped steel bridge structure involved in the present invention includes a longitudinal honeycomb-like multi-layer H-shaped steel main beam, a solid-web H-shaped transverse support, and a solid-web angle steel diagonal support. Among them, the longitudinal honeycomb-like multi-layer H-shaped steel main beam is a new combined form, that is, the longitudinal honeycomb-like multi-layer H-shaped steel main beam includes continuous H-shaped steels in the uppermost layer and the lowermost layer, and one or more intermediate layers of H-shaped steels arranged at certain intervals according to certain rules or force characteristics; the H-shaped steels in the uppermost layer and the lowermost layer use the same specifications; the honeycomb-like multi-layer H-shaped steel main beams are arranged at certain intervals to form a longitudinal main stress frame; the connection between H-shaped steels adopts all-bolt connection to meet the requirements of prefabrication.

[0073] The solid-web H-shaped transverse support adopts an insert connection with the web extended to the web of the main beam, and the webs are connected by angle steel bolts; the flanges are connected by cover plates. In order to ensure the integrity of the lower cover plate, the web of the transverse support is interrupted to meet the space requirements of the cover plate;

[0074] Among them, the solid-web H-shaped transverse support has the same specifications as the longitudinal structure it is connected to, that is, the transverse support connected to the uppermost layer or the lowermost layer has the same specifications as it, and the transverse support connected to the intermediate layer has the same specifications as the intermediate layer.

[0075] Directly weld the cross plate on the angle steel in the factory to connect the diagonal support.

[0076] Adopt the above connection method and add stiffeners at the corresponding positions of the main beam to meet the requirements of lateral support rigidity.

[0077] The lateral support is arranged at the central position of the intermediate layer H-shaped steel to meet the requirements of structural stability and aesthetic function.

[0078] The present invention relates to an assembly method for an H-shaped steel bridge structure. First, assemble and install the honeycomb-like multi-layer H-shaped steel main beams, and connect the flanges with bolts; then arrange the honeycomb-like multi-layer H-shaped steel main beams at a certain interval to form a longitudinal main stress-bearing framework; then place the solid-web H-shaped steel lateral support at the designated position and connect the cover plates; then connect the angle steel to the web; similarly, connect the next main beam to the lateral support; finally, connect the diagonal support to the angle steel, and all the above connections are made with high-strength bolts.

[0079] The present invention is constructed in the following manner:

[0080] 1. After the materials enter the site, start assembling the truss columns at the mid-span. First, splice the incoming H-shaped steel with equal-strength connecting plates into four identical steel columns. After splicing, connect the H-shaped steel beams between the two sections of H-shaped steel columns respectively, and then connect the two rows of steel frames with the same steel beams to form a columnar structure. Subsequently, connect the diagonal braces (round tubes) between the two diagonal H-shaped steels. Tighten all the high-strength bolts finally.

[0081] 2. After the assembly is completed, lift the truss column with a crane. The lifting point is located at the top of the column. Conduct a trial lift before lifting. After the structure is stable, start lifting. Lift until the holes of the column base plate at the bottom of the H-shaped steel are completely aligned with the embedded bolts, and then slowly lower it to the bottom. After leveling with wedge iron, tighten the nuts finally, and finally conduct secondary pouring.

[0082] 3. Fix another truss column with a spacing of 50 meters on the foundation in the same way.

[0083] 4. After both truss columns are installed, start assembling the collar beam. First, assemble the lower chord plane structure. Splice multiple sections of H-shaped steel into two long chord members with flange equal-strength respectively, connect the two chord members with vertical members (H-shaped steel) according to the drawing, and connect the upper diagonal members (H-shaped steel) between the vertical members. Tighten all the bolts finally.

[0084] 5. Assemble the upper chord part. Splice multiple sections of round tubes into two arc-shaped chord members with flange equal-strength according to the drawing. Lift the two chord members upright with a crane, level the two chord members with a level, and use a steel ruler to measure whether the chord length and arch height of the two chord members match the drawing dimensions or the deviation is within the allowable range of the specification. Then conduct the assembly of the round tubes. The assembly sequence of the round tubes should be symmetrically assembled from the middle to both sides. Connect the two chord members into a grid-like structure. After completion, level the upper chord structure with a level.

[0085] 6. After the upper chord structure is installed, place the lower chord structure flat on the ground, level it with a level, and then use a crane to lift the upper chord structure directly above the lower chord structure and slowly lower it until it completely lands on the lower chord structure. Initially tighten it with high-strength bolts, and then connect the upper and lower chord structures with round tubes according to the drawing. The round tubes are connected through high-strength bolts and connecting plates to assemble a stable truss joist structure.

[0086] 7. After the truss joist is assembled, proceed to the next step of lifting the joist onto the two truss columns. The specific steps are as follows: Use two cranes of the same model with the lifting points on the upper chord of the joist (obtained through specific calculations). Conduct a trial lift before lifting. After the truss joist structure is stable, start lifting. The two cranes cooperate with each other to lift the joist to the top of the truss column, fix it to the truss column with high-strength bolts, and then remove the cranes.

[0087] 8. Assemble the material yard into the above-mentioned joist structure with a 50-meter spacing in the length direction as a unit.

[0088] 9. After the truss joist structure is completed, start installing the main arch frame;

[0089] (1) Arrange the main steel beams neatly on the ground according to the drawing sequence; use a level to level the ground tire. Place the steel beams on the ground tire. After determining the approximate geometric dimensions of the position, check whether the friction surfaces at the equal-strength splicing plates and the steel beam splicing positions meet the installation requirements and whether the specifications of the high-strength bolts are compliant;

[0090] (2) Connect each section of the beam with equal-strength connecting plates and initially tighten all the bolts. The initial tightening degree is carried out according to the specifications and the company's technical requirements;

[0091] (3) Level the half-span beam with a level and use a steel tape to measure whether the chord length and arch height of the assembled unit composed of the half-span beam match the drawing dimensions or the deviation is within the allowable range of the specifications;

[0092] (4) After leveling the half-span beam and completing the dimension measurement, finally tighten all the bolts. The final tightening degree is carried out according to the specifications and the company's technical requirements;

[0093] (5) Lift the two assembled half-span girders using cranes of the same tonnage, connect the rigid tie rods and horizontal braces to form a stable lifting unit. The bolts of the secondary structure should be initially tightened and then finally tightened according to the specifications and the company's technical requirements. The final tightening degree should be carried out according to the specifications and the company's technical requirements; use temporary supports to fix the lifting unit. The assembly sequence of the arched steel structure should preferably be symmetrically assembled from the middle to both sides. During the assembly of the arched steel structure, the lateral stabilizing members should be connected in a timely manner, or temporary construction measures such as guy ropes should be adopted to ensure the stability of the lifting unit. The installation of the arched steel structure is a construction process from components, mechanisms, and unstable structures to stable structures. Therefore, during the installation process, great attention must be paid to the stability of the components and the lifting unit. Measures such as setting temporary supports, pulling guy ropes, and temporary reinforcement should be taken to ensure the stability of the lifting unit.

[0094] 10. Hoisting;

[0095] (1) Conduct a trial hoist before hoisting. Select good lifting points to ensure the unity of the positions of each joint to facilitate the balance of the steel beam. Tie two guy ropes at both ends of the beam to prevent the beam from swaying during hoisting. If there is swaying, it can be adjusted by applying force to the ropes at both ends. After the preparatory work is ready, start the trial hoist. Stop hoisting when the component is about 1 m above the ground, and hoist statically for 5 minutes to check whether each connection point is safe and whether the arch beam is balanced. When using the binding method for hoisting, if it is found that the position of the binding point is incorrect, hoist the arch beam back to the ground splicing table, fix the arch beam with a brace to prevent it from tipping over, re-select the binding point near the original binding point position according to the inclination direction of the arch beam in the air, pay attention that the moving position should not be too large, and operate again according to the above process and then conduct the trial hoist until the arch beam is balanced in the air. Record the accurate positions of the two binding points at this time, and when hoisting the next arch beam, hoist it according to this position;

[0096] (2) Raise the bottom of the steel column and the top of the arch by about 1 m at the same time. After the steel arch frame is lifted to become a stable lifting unit, then raise the column foot part of the steel arch frame to the top position of the column; continue to raise the flange part to the theoretical height;

[0097] (3) Keep the top of the arch unchanged, slowly raise the column foot part so that the anchor bolt holes of the column base plate are aligned with the embedded anchor bolts; then use the column foot nuts to initially level the arch frame;

[0098] (4) The crane uses the same method to hoist the corresponding lifting unit in place. This lifting unit needs to fix the column base plate on the lower chord structure of the truss supporting beam and initially level the anchor bolts of the steel arch frame. The flange part should be higher than the flange position of the relative lifting unit;

[0099] (5) The cranes at the top of the arch of the two lifting units cooperate with each other to close the flanges in place and carry out manual high-altitude operations; the deformation of the component should be controlled during hoisting, especially attention should be paid not to produce permanent deformation;

[0100] (6) The climbing worker should wear a safety belt and tool bag, hang up the self-locking device, use the crane to lift the lifting railing and tools to the position of the arch flange plate, lock the bolts, and tighten the bolts. The climbing worker should use the self-locking device to ensure his own safety when working at high altitude. The safety buckle on the self-locking device can be removed only after reaching the ground safely. When docking the arch, the worker must bring a tool bag, put the tools and screws in the tool bag, and tie the safety rope to the lifeline. After the bolts are finally tightened, the nodes are marked with paint.

[0101] 11. Membrane material installation;

[0102] (1) Before opening the package on site, the exact installation position of the membrane unit should be determined. When the membrane unit is unfolded, necessary measures should be taken to prevent the membrane material from being contaminated or damaged. Temporary plywood can be used when unfolding and hoisting the membrane unit, but tearing of the connection between the membrane unit and the temporary plywood should be avoided during the installation process. Clean up the site and take safety precautions for objects that may damage the membrane material. Before installation, the supporting structure and steel components should be retested to confirm that they meet the membrane installation requirements;

[0103] (2) When using a winch to drag the membrane material, pay attention to the firmness of the clamps and closely observe the entire dragging process to prevent it from getting tangled or scratched. The transverse tensile rate of the membrane material must be guaranteed to be 3.3%. The membrane unit should be installed in place continuously. When it cannot be installed in place continuously, reliable temporary fixing measures should be taken. When the wind force reaches level 4 or the temperature is below 4°C, it is not suitable to install the membrane unit; when the wind force reaches level 5 or above, it is strictly prohibited to install the membrane unit. The aluminum strip should be installed in a straight line, and the spacing between the self-tapping screws in the span direction is 70mm. The position of the self-tapping screws should be in the middle of the aluminum strip, forming a straight line (not a curve), and the spacing between the self-tapping screws should be consistent. The edge of the pulled membrane material should be consistent with the edge of the aluminum strip (that is, a straight line, not a curve). After the membrane structure is installed, the inner and outer surfaces of the membrane should be cleaned;

[0104] (3) When installing the polycarbonate sheet at the top of the truss beam, the aluminum strip should be installed before the self-tapping screws are installed.

[0105] 12. Installation of gable panels;

[0106] (1) Analyze the re-measurement data of the gable components to check whether the size of the gable components is correct to avoid failure to install after lifting;

[0107] (2) Use a single-point infrared measuring instrument to lay out the axis, determine the position of the horizontal beam, mark the positions of the two side lines of the horizontal beam on the embedded plate of the gable foundation, and weld the limit plate. Make sure that the outside of the horizontal beam is flush with the dust screen connection plate on the H-shaped steel;

[0108] (3) When lifting the wind-resistant beam, one crane is located outside the axis, with the lifting point located slightly below the top of the wind-resistant beam. The other crane hook uses a hanging basket to hang people and connect the wind-resistant beam to the steel arch frame (bolt connection). After the top is fixed, the ground construction personnel need to connect the bottom of the wind-resistant beam to the horizontal beam on the scaffolding platform (bolt connection), paying special attention to measuring the verticality of the wind-resistant beam in two directions;

[0109] (4) The dust screen is installed using a crane basket, from bottom to top, first install the middle and then complete the board on the left and right. A blue outer line or a transparent horizontal tube is required to determine the size. The size control mainly considers the vertical line and the horizontal line, while also considering the butt joint of the ribbon. The two dust screens in the horizontal direction need to be calibrated for horizontal error;

[0110] (5) The overlap of the dust screen should be regular, and there should be no chaotic overlap. The overlap on the left and right should be less than 30 mm, and the overlap on the top and bottom should not exceed 5 mm. For plates exceeding 4.5 meters, gaskets should be added at 2.25 meters. The gaskets are special gaskets and 8 mm bolts. Aluminum strips should be tapped before self-tapping. Self-tapping threads should be ensured to be horizontal and vertical. After completion, caps should be put on immediately. If the plastic cap is of poor quality, it should be glued with structural adhesive. Check the pollution of the dust screen and deal with it immediately. Use an angle grinder to cut off the excess part of the dust screen at the steel arch frame, and repaint the cut section with white paint;

[0111] (6) Screws are screwed in at intervals of 50 mm along the flat iron on the top dust screen. Self-tapping screws are screwed in at intervals of 50 mm on the upper and lower rows of flat iron on the steel arch frame to ensure that they are fastened with self-tapping screws at intervals of 50 mm.

[0112] 13. Microporous dust screens can also be installed on the sides of truss joists. The installation method is the same as above.

[0113] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art. The membrane material and the solar panel, plus the control circuit connection adopt the conventional connection method in the prior art, which will not be described in detail here.

[0114] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. The structure of an extra-large-span sealed storage yard for multiple stacker-reclaimers is characterized in that It includes truss columns (1), bearing beams (2), upper chord frames (3) and main arch frames (4). Multiple said truss columns (1) are arranged horizontally and equidistantly in the middle of the storage yard, and each said truss column (1) is vertically arranged. Among them, the lower end of the said truss column (1) is fixedly arranged on the embedded base. A bearing beam (2) is connected between the tops of two adjacent said truss columns (1). The upper chord frame (3) is in an arc-shaped structure with the center facing downwards. The two ends of the upper chord frame (3) are respectively fixedly arranged at the two ends of the bearing beam (2). Main arch frames (4) are arranged on both sides of the bearing beam (2). The main arch frame (4) is also in an arc-shaped structure, and one end of the main arch frame (4) is fixed on the bearing beam (2), and the other end of the main arch frame (4) longitudinally crosses the storage yard and is fixed on the ground at the edge of the storage yard. A membrane material is arranged outside the main arch frame (4). Sunlight plates are installed on the corresponding sides of both sides of the bearing beam (2) and the upper chord frame (3), as well as on the top of the upper chord frame (3) and the top of the bearing beam (2); Both the truss column (1) and the bearing beam (2) are of H-shaped steel bridge structures, and their structural forms are the same, both including: Main beam bodies (11) and transverse supports (12). Multiple said main beam bodies (11) are arranged longitudinally, parallelly and equidistantly. Multiple transverse supports (12) are arranged between the connected main beam bodies (11). The structure of the main beam body (11) includes a main beam body (111), connecting plates (112), and cover plates (113). Both the main beam body (111) and the connecting plates (112) are H-shaped steels. Two said main beam bodies (111) are arranged parallel to each other vertically in the vertical plane. Multiple said connecting plates (112) are arranged equidistantly between the two main beam bodies (111). The widths of the main beam body (111) and the connecting plates (112) are equal. The main beam body (111) and the connecting plates (112) are both longitudinally distributed so that the horizontal plates of the main beam body (111) and the connecting plates (112) can match. Multiple through holes are correspondingly arranged on the horizontal plates of the connection parts of the main beam body (111) and the connecting plates (112). The main beam body (111) and the connecting plates (112) are connected together by bolts. The cover plate (113) is a plate-shaped structure including two specifications. Multiple through holes are regularly distributed on both specifications of the cover plate (113). And the two specifications of the cover plate (113) are arranged separately or in combination on the upper and lower sides of the horizontal plate of the connection part of the main beam body (111) and the connecting plates (112). The cover plate (113) is distributed in a matrix on the main beam body (111) and is fixed on the main beam body (111) and the connecting plates (112) by bolts. The two cover plates (113) and the side surfaces of the main beam body (111) and / or the connecting plates (112) cooperate to form a groove-shaped connection groove (114); The transverse support (12) is of H-shaped steel structure. The length of the horizontal plate of the transverse support (12) is less than that of the vertical plate. The two ends of the horizontal plate of the transverse support (12) can be inserted into the connection grooves (114) on the two horizontal plates of the main beam body (111) in a matching manner. At the same time, the vertical plate of the transverse support (12) is correspondingly abutted against the vertical plate of the main beam body (111). A plurality of through holes provided on the horizontal plate of the transverse support (12) correspond to the through holes on the cover plate (113), and the transverse support (12) is fixed to the cover plate (113) by bolts; An angle steel (13) is arranged at the intersection of the vertical plate of the transverse support (12) and the vertical plate of the main beam body (111) in a matching manner. A plurality of through holes are provided on the two side surfaces of the angle steel (13), and the through holes correspond to the through holes provided on the vertical plate of the transverse support (12) and the vertical plate of the main beam body (111). The angle steel (13) is fixed to the vertical plate of the transverse support (12) and the vertical plate of the main beam body (111) by bolts. Connecting support plates (14) are horizontally arranged on the inner sides of the two side plates of the angle steel (13). The connecting support plates (14) are integrally formed with the angle steel (13). Through holes are provided on the connecting support plates (14), and connecting rods (15) are connected by bolts between two connecting support plates (14) at diagonal positions in the same horizontal plane; Reinforcing plates (16) are arranged between the two horizontal plates of the main beam body (111) in a matching manner. The reinforcing plates (16) are arranged perpendicular to the vertical plates of the main beam body (111) and are welded and fixed to the vertical plates of the main beam body (111); The upper chord truss (3) and the main arch truss (4) are both of truss structures, which are formed by arc-shaped main rods and connecting struts and / or diagonal tension rods through bolts and / or welding.

2. The super-large-span enclosed storage yard structure for multiple stacker-reclaimers according to claim 1, wherein Steps (17) are arranged on both the upper and lower sides of the end of the vertical plate of the transverse support (12). The height of the steps (17) is equal to the thickness of the cover plate (113), so that the clamping grooves formed by the cooperation of the steps (17) and the horizontal plate of the transverse support (12) are inserted into the cover plate (113) in a matching manner.

3. The super-large-span sealed storage yard structure for multiple stacker-reclaimers according to claim 1, characterized in that The joist (2), the upper chord truss (3) and the sunlight plate cooperate to form a chamber, and doors and windows are installed at the corresponding positions of the sunlight plate to form a control room or a temporary rest room for commanding the operation of the stacker-reclaimer.

4. A construction method for an extra-large-span enclosed storage yard structure for multiple stacker-reclaimers according to claim 1, characterized in that, Implement according to the following steps: The first step: Select appropriate positions along the middle of the stockyard horizontally and around the edge of the stockyard to embed the bases; The second step: Vertically fix the assembled truss column (1) in the middle of the stockyard; then fix the assembled joist (2) and the upper chord truss (3) together by welding and / or bolts; The third step: Hoist the fixed joist (2) and upper chord truss (3) to the tops of two adjacent truss columns (1) in sequence for fixing; The fourth step: Hoist and fix the assembled main arch truss (4) on both sides of the joist (2) in sequence. One end of the main arch truss (4) is fixed on the joist (2), and the other end of the main arch truss (4) longitudinally crosses the stockyard and is fixed on the ground at the edge of the stockyard; Step 5: A membrane material is fixed outside the main arch frame (4), and sunlight plates are installed on both sides of the supporting beam (2) corresponding to both sides of the upper chord frame (3), as well as on the top of the upper chord frame (3) and the top of the supporting beam (2), and the installation is completed.

5. The construction method of the super-large-span sealed storage yard structure for multiple stacker-reclaimers according to claim 4, characterized in that Both the truss column (1) and the supporting beam (2) are of H-shaped steel bridge structures, and their assembly methods are the same, which are specifically as follows: Step 1, factory preparation stage; Manufacture corresponding components according to the design dimensions, and weld multiple reinforcing plates (16) at equal intervals on the vertical plate on one side of the main beam body (111) for standby, and weld the connecting support plates (14) on the inner sides of the two side plates of the angle steel (13) for standby; process steps (17) on the upper and lower sides of the ends of the vertical plates at both ends of the transverse support (12) for standby; Step 2, factory pre-assembly; A plurality of connecting plates (112) are fixedly arranged at equal intervals between the two main beam bodies (111) through bolts, and cover plates (113) are fixedly arranged on the upper and lower positions on both sides of the horizontal plate of the main beam body (111) at the position where the connecting plates (112) are located through bolts to form a main beam body (11); Step 3, formal assembly at the actual installation site; a. Arrange a plurality of main beam bodies (11) in parallel, and arrange a plurality of transverse supports (12) between two adjacent main beam bodies (11), and both ends of each transverse support (12) are bolted to the corresponding cover plate (113); b. An angle steel (13) is arranged at the intersection of the transverse support (12) and the main beam body (11), and the angle steel (13) is bolted and fixed to the transverse support (12) and the main beam body (11); c. Inside the frame formed by the transverse support (12) and the main beam body (11), connect the two angle steels (13) on the diagonal with bolts through a connecting rod (15).

6. The construction method of the super-large-span sealed storage yard structure for multiple stacker-reclaimers according to claim 5, characterized in that Both ends of the connecting rod (15) are provided with connecting through holes corresponding to the connecting support plates (14), and inside each frame formed by the transverse support (12) and the main beam body (11), one connecting rod (15) is fixed on the upper side of the connecting support plate (14), and the other connecting rod (15) is fixed on the lower side of the corresponding diagonal connecting support plate (14).

7. The construction method of the super-large-span sealed storage yard structure for multiple stacker-reclaimers according to claim 6, characterized in that, The connecting rod (15) is of angle steel structure.

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