A method for installing a double-sided cantilevered steel structure assembly

Abstract

This invention relates to the field of cantilever steel structure technology, and in particular to an installation method for a double-sided cantilever steel structure assembly. The method includes a central vertical support structure vertically embedded and cast below ground level. A surface cantilever main body is installed on a mounting base at the top of the central vertical support structure. Both sides of the surface cantilever main body are cantilevered. Vertical secondary support members are installed on the left and right sides of the surface cantilever main body, with the bottom of each secondary support member pre-embedded and cast below ground level. A double-inclined cantilever support unit is installed between each secondary support member and the central vertical support structure. The double-sided cantilever steel structure assembly designed in this invention is applicable to double-sided cantilever surface steel structure systems such as outdoor stadium roofs, and can effectively stabilize the entire structure through the central support combined with the cantilever supports on both sides.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cantilever steel structure, in particular to a steel structure assembly capable of realizing bilateral cantilever support, and more particularly to a mounting and construction method of the bilateral cantilever steel structure assembly. BACKGROUND

[0002] The cantilever steel structure mainly refers to the structure form of a steel structure building with one side edge in a free cantilever state. Generally, the cantilever structure is a beam frame main body or a roof eave main body, and is commonly used in large-scale stadiums and other open outdoor buildings.

[0003] The steel structure is favored due to its high strength, corrosion resistance and plasticity. The cantilever structure has been disclosed in the prior application of the applicant, for example, a cantilever steel structure net rack assembly is disclosed in the patent document with the patent publication number CN215802274U. The main structure includes a cantilever net rack body, the rear end of the cantilever net rack body is inserted into a fixed square tube sleeve and is fixedly connected to the cantilever net rack body through a plurality of end fixing bolts, a vertical support member is fixedly connected to the bottom of the fixed square tube sleeve and is fixed to the ground, a cantilever inclined support member is installed on the upper part of the vertical support member, the outer end of the cantilever inclined support member is inclined upward and is fixed to the bottom of the cantilever net rack body, an end tie member is arranged on the rear side of the vertical support member and is connected to the rear end of the cantilever net rack body, and the rear end of the cantilever net rack body is connected to the end tie member after passing through the entrance through installation port.

[0004] As can be seen from the content described in the above-mentioned existing patent technology, it is mainly aimed at cantilever support of the cantilever net rack body, and adopts a unilateral cantilever structure. In the process of overall cantilever support, the front rigid cantilever inclined support and the rear end vertical support are mainly relied on for support. However, this cantilever support structure is not suitable for long-span bilateral cantilever roof structure. Since the cantilever structure similar to the main roof structure of the stadium needs to be cantilevered to both sides, and the overall coverage area is wide, the stability and wind load capacity of the support need to be considered during the support process. However, the existing cantilever support structure cannot meet this demand.

[0005] Therefore, the present application optimizes and improves the existing problems in the prior art that the existing cantilever structure cannot effectively support the large-area bilateral cantilever steel structure surface layer. A steel structure assembly capable of realizing bilateral cantilever support and a construction method thereof are proposed to better solve the problems in the prior art. SUMMARY

[0006] The technical scheme adopted by the present application for solving one of the above technical problems is: a double-side cantilever type steel structure assembly, comprising a central vertical support structure vertically embedded and cast below the ground, a surface layer cantilever main body is installed on the top mounting seat of the central vertical support structure, both sides of the surface layer cantilever main body are cantilevered, a vertical auxiliary support member is installed on the left and right sides of the surface layer cantilever main body, the bottom of each vertical auxiliary support member is embedded and cast below the ground, a double-inclined cantilever support unit is installed between each vertical auxiliary support member and the central vertical support structure, and the top of each double-inclined cantilever support unit is slidably connected with the T-shaped sliding groove at the bottom of the surface layer cantilever main body at the corresponding position.

[0007] Preferably in any of the above solutions, the central vertical support structure comprises a hollow steel structure stand column vertically arranged, the bottom of the hollow steel structure stand column is embedded and cast below the ground, the top of the hollow steel structure stand column is fixedly connected with the top mounting seat, a main threaded stud is installed in the vertical main cavity of the hollow steel structure stand column, the bottom and the top of the main threaded stud are fixedly arranged, through operating openings are arranged on the left and right side walls of the hollow steel structure stand column on both sides of the middle part of the main threaded stud, an annular main lifting seat is sleeved on the main threaded stud of the vertical main cavity, main locking nuts are threadedly screwed on the main threaded stud at the top and the bottom of the annular main lifting seat, the two main locking nuts are cooperatively used to lock and limit the annular main lifting seat, lateral main ear seats are respectively welded on the left and right sides of the annular main lifting seat, and the two lateral main ear seats are respectively used to movably connect with the inner end of the double-inclined cantilever support unit at the corresponding position.

[0008] Preferably in any of the above solutions, the vertical auxiliary support member comprises a hollow auxiliary pipe column vertically arranged, a auxiliary support column is cooperatively inserted in the central auxiliary cavity of the hollow auxiliary pipe column, the lower end of the auxiliary support column extends into the central auxiliary cavity and is fixedly connected with the top of a vertical damping spring fixedly installed in the central auxiliary cavity, a auxiliary top ear seat is fixedly installed at the top of the auxiliary support column, and the auxiliary top ear seat is used to movably connect with the bottom of the double-inclined cantilever support unit at the corresponding position.

[0009] Preferably in any of the above solutions, the double-inclined cantilever support unit comprises a first inclined support mechanism, the upper and lower ends of the first inclined support mechanism are hingedly arranged, a second inclined support mechanism is installed on the lower side of the middle part of the first inclined support mechanism, and the first inclined support mechanism cooperatively supports the cantilevered surface layer cantilever main body at the current position.

[0010] Preferably in any of the above solutions, the primary diagonal bracing mechanism comprises a primary diagonal bracing screw arranged obliquely, a primary lower lug and a primary upper lug are integrally formed and fixedly connected at both ends of the primary diagonal bracing screw, the primary lower lug is movably connected with the lateral main lug at the corresponding position, the primary upper lug is movably connected with the primary sliding lug at the corresponding position, the primary sliding lug is slidably connected with the T-shaped sliding groove at the corresponding position, and the secondary diagonal bracing mechanism is arranged below the outer side of the primary diagonal bracing screw, the lower end of the secondary diagonal bracing mechanism is movably sleeved on the outer side wall of the primary diagonal bracing screw, and the secondary diagonal bracing mechanism is limited and locked by the two primary linkage limiters on the upper part and the lower part thereof.

[0011] Preferably in any of the above solutions, the secondary diagonal bracing mechanism comprises a ring-shaped lateral lifting seat movably sleeved on the outer side wall of the primary diagonal bracing screw, a secondary lower lug is fixedly installed on the ring-shaped lateral lifting seat, a secondary diagonal bracing screw is arranged on the outer side upper part of the secondary lower lug, the lower end of the secondary diagonal bracing screw is movably connected with the secondary lower lug, the upper end of the secondary diagonal bracing screw is movably connected with the secondary sliding lug, the secondary sliding lug is slidably connected with the T-shaped sliding groove at the corresponding position, a ring-shaped auxiliary lifting seat is movably sleeved on the middle outer side wall of the secondary diagonal bracing screw, the secondary linkage limiters are respectively installed on the outer side walls of the secondary diagonal bracing screw on both sides of the ring-shaped auxiliary lifting seat, and the ring-shaped auxiliary lifting seat is limited and locked by the two secondary linkage limiters.

[0012] Preferably in any of the above solutions, the primary linkage limiter comprises a primary locking nut threadedly screwed on the outer side wall of the primary diagonal bracing screw at the corresponding position, and the two primary locking nuts are used in combination to clamp and lock the ring-shaped lateral lifting seat at the current position.

[0013] Preferably in any of the above solutions, the outer thread segment of the primary diagonal bracing screw between the primary locking nut and the corresponding ring-shaped lateral lifting seat is sleeved with a primary linkage spring, and the two ends of the primary linkage spring are respectively abutted against the primary locking nut and the ring-shaped lateral lifting seat at the corresponding positions.

[0014] Preferably in any of the above solutions, the secondary linkage limiter comprises a secondary locking nut threadedly screwed on the outer side wall of the secondary diagonal bracing screw at the corresponding position, and the two secondary locking nuts are used in combination to clamp and lock the ring-shaped auxiliary lifting seat at the current position.

[0015] In any of the above embodiments, it is preferred that a secondary linkage spring is sleeved on the external thread section of the secondary inclined brace screw between each of the secondary locking nuts and the corresponding annular secondary lifting seat, and the two ends of each of the secondary linkage springs abut against the secondary locking nut and the annular secondary lifting seat at the corresponding positions.

[0016] This invention also provides an installation method for a double-sided cantilevered steel structure assembly, characterized by the following steps:

[0017] The central vertical support structure is pre-assembled, the double inclined cantilever support unit is pre-assembled, and the vertical auxiliary support components are pre-assembled.

[0018] The assembled structural components are loaded onto trucks and transported to the construction site;

[0019] The ground at the construction site was dug into a pit and the ground was reinforced. After the reinforcement was completed, the central vertical support structure was hoisted using hoisting equipment and kept in a vertical position. Concrete was poured to reinforce the bottom of the central vertical support structure.

[0020] The corresponding vertical auxiliary support components are hoisted and installed inside the ground foundation pits on both sides of the central vertical support structure, and the bottom pre-embedded pouring reinforcement is completed in sequence.

[0021] The double-inclined cantilever support units on both sides are installed sequentially. During installation, the locking height of the annular main lifting seat is controlled by pre-adjusting the position of the two main locking nuts. The lower inner side of the first-level inclined brace mechanism of the vertical auxiliary support is hinged to the annular main lifting seat. The position adjustment of the second-level inclined brace mechanism is completed by adjusting the position of the lower part of the second-level inclined brace mechanism.

[0022] After the double-inclined cantilever support units on both sides are installed, the cantilevered main body of the surface layer is hoisted into place using hoisting equipment. The top mounting base is fixedly connected to the center bottom of the cantilevered main body of the surface layer. Each primary sliding lug and secondary sliding lug is then slidably engaged into the corresponding T-shaped groove at the bottom of the cantilevered main body of the surface layer. The sliding position is controlled to achieve a hinged connection between the top of each primary and secondary inclined bracing mechanism and the primary and secondary sliding lugs at the corresponding positions.

[0023] After the above connection is completed, control the movable hinge of each annular sub-lifting seat to the sub-top ear seat at the top of the corresponding vertical sub-support component;

[0024] Fine-tuning is performed to tighten and lock each connection point. After verification, the installation of the entire steel structure assembly is completed.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. The double-side cantilever type steel structure assembly designed in the application can be applied to the double-side cantilever type surface layer steel structure system of an outdoor gymnasium roof, and can realize effective stable support of the whole structure through the central support cooperating with the cantilever supports on both sides.

[0027] 2. The central vertical support structure designed in the application cooperates with the vertical auxiliary support members on both sides to realize effective rigid support strength in the vertical direction, and when each structure is connected with the corresponding upper surface layer cantilever main body, the double-inclined cantilever support units on both sides can realize multi-point support of the central vertical support structure and the vertical auxiliary support members, effectively ensuring the effect and firmness of the cantilever support.

[0028] 3. When the central vertical support structure is adjusted, the bottom locking position of the double-inclined cantilever support units connected on both sides can be controlled, so as to control the lower positioning position of the primary inclined brace mechanism of the double-inclined cantilever support unit, and the top support of the vertical auxiliary support member can realize the buffer support of the lower part of the secondary inclined brace mechanism, so as to ensure the multi-point support and buffer damping effect when supporting the double-inclined cantilever support unit composed of the primary inclined brace mechanism and the secondary inclined brace mechanism, effectively realizing the wind load buffer effect and safety and stability of the whole surface layer cantilever main body structure before the wind load, and reducing the excessive damage caused by direct rigid tie. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0030] Figure 1 It is a structure schematic diagram of the embodiment 1 of the application.

[0031] Figure 2 It is a partial cross-sectional structure schematic diagram of the embodiment 1 of the application.

[0032] Figure 3 It is a structure schematic diagram of the embodiment 2 of the application.

[0033] Figure 4 It is a cross-sectional structure schematic diagram of the surface layer cantilever main body section.

[0034] In the figure, 1, ground; 2, central vertical support structure; 3, top mounting seat; 4, surface layer cantilever main body; 5, vertical auxiliary support; 6, double inclined cantilever support unit; 7, T-shaped sliding groove; 8, hollow steel structure vertical pipe column; 9, vertical main cavity; 10, main stud; 11, through operation opening; 12, annular main lifting seat; 13, main locking nut; 14, lateral main ear seat; 15, hollow auxiliary pipe column; 16, central auxiliary cavity; 17, auxiliary support column; 18, vertical damping spring; 19, auxiliary top ear seat; 20, first-stage inclined support screw rod; 21, first-stage lower ear seat; 22, first-stage upper ear seat; 23, first-stage sliding ear seat; 24, annular lateral lifting seat; 25, second-stage lower ear seat; 26, second-stage inclined support screw rod; 27, second-stage sliding ear seat; 28, annular auxiliary lifting seat; 29, first-stage locking nut; 30, first-stage linkage spring; 31, second-stage locking nut; 32, second-stage linkage spring. DETAILED DESCRIPTION

[0035] The embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application. The specific structure of the present application is shown in Figures 1-4

[0036] Embodiment 1: A double-side cantilever type steel structure assembly, comprising a central vertical support structure vertically embedded and cast below the ground 1, a surface layer cantilever main body 4 is mounted on the top mounting seat 3 of the central vertical support structure, both sides of the surface layer cantilever main body 4 are cantilevered, a vertical auxiliary support 5 is mounted on the left and right sides of the surface layer cantilever main body 4 respectively, the bottom of each vertical auxiliary support 5 is embedded and cast below the ground 1, a double inclined cantilever support unit 6 is respectively mounted between each vertical auxiliary support 5 and the central vertical support structure, and the top of each double inclined cantilever support unit 6 is respectively slidably connected with the T-shaped sliding groove 7 at the bottom of the surface layer cantilever main body 4. The double-side cantilever type steel structure assembly can realize stable support of the entire upper surface layer cantilever main body 4 by the central vertical support structure and the vertical auxiliary supports 5 on both sides, and the double inclined cantilever support units 6 on both sides can effectively ensure multi-point support during support, and the positions of each point support can be adjusted as needed. In addition, the support parts on both sides are provided with buffer damping structures that can be buffered and displaced, effectively ensuring that the purpose of rapid buffer damping can be achieved while supporting, thereby effectively improving the flexibility, stability and buffer damping effect of the entire surface layer cantilever main body 4.

[0037] ​In any of the above schemes, preferably, the central vertical support structure comprises a vertically arranged hollow steel structure stand column 8, the bottom of the hollow steel structure stand column 8 is pre-buried and cast below the ground 1, the top of the hollow steel structure stand column 8 is fixedly connected with the top mounting seat 3, a main stud 10 is installed inside the vertical main cavity 9 of the hollow steel structure stand column 8, the bottom and top of the main stud 10 are fixedly arranged, through operating openings 11 are respectively arranged on the left and right side walls of the hollow steel structure stand column 8 on both sides of the middle part of the main stud 10, an annular main lifting seat 12 is sleeved on the main stud 10 of the vertical main cavity 9, main locking nuts 13 are respectively threadedly screwed on the main stud 10 at the top and bottom of the annular main lifting seat 12, the two main locking nuts 13 cooperate to achieve locking and limiting of the annular main lifting seat 12, side main ear seats 14 are respectively welded on the left and right sides of the annular main lifting seat 12, and the two side main ear seats 14 are respectively used for movably hinged with the inner ends of the double-inclined cantilever support units 6 at the corresponding positions. The central vertical support structure mainly plays a role of central support, and has a main supporting effect. The bottom of the entire hollow steel structure stand column 8 is pre-buried and fixedly arranged, and the top fixedly supports the bottom center of the top cantilever main body 4. The main stud 10 installed in the vertical main cavity 9 of the hollow steel structure stand column 8 has two effects. Firstly, it plays a role of auxiliary vertical support of the hollow steel structure stand column 8, and effectively forms an external annular and internal columnar structure by cooperation of the hollow steel structure stand column 8 and the main stud 10. In addition, the locking position of the annular main lifting seat 12 can be controlled by the locking effect of the main locking nuts 13, so that the position of the annular main lifting seat 12 and the bottom positioning position of the first inclined bracing mechanism connected therewith can be controlled, and the two main locking nuts 13 can be adjusted conveniently.

[0038] In any of the above schemes, preferably, the vertical auxiliary support 5 comprises a vertically arranged hollow auxiliary column 15, an auxiliary support column 17 is inserted and arranged in the central auxiliary cavity 16 of the hollow auxiliary column 15, the lower end of the auxiliary support column 17 extends into the central auxiliary cavity 16 and is fixedly connected with the top of a vertical damping spring 18 fixedly installed in the central auxiliary cavity 16, a vertical auxiliary top ear seat 19 is fixedly installed at the top of the auxiliary support column 17, and the vertical auxiliary top ear seat 19 is used for movably hinged with the bottom of the double-inclined cantilever support unit 6 at the corresponding position. The vertical auxiliary support 5 mainly plays a role of auxiliary support, and has the following effects. Firstly, the vertical damping spring 18 arranged in the vertical auxiliary support 5 can play a role of auxiliary damping and buffering. Secondly, the vertical auxiliary top ear seat 19 at the top can achieve the purpose of hinged support of the bottom of the double-inclined cantilever support unit 6 at the current position.

[0039] In any of the above solutions, preferably, the double-inclined cantilever support unit 6 comprises a first inclined support mechanism, the upper and lower ends of which are hingedly arranged, and a second inclined support mechanism is installed at the lower middle part of the first inclined support mechanism, and the first inclined support mechanism cooperates with the second inclined support mechanism to achieve cantilever support for the cantilevered face layer cantilever body 4 at the current position. The double-inclined cantilever support unit 6 uses first inclined support mechanisms with different inclination degrees to cooperate with second inclined support mechanisms to form a structure similar to a hierarchical branch support. By adjusting the corresponding first inclined support mechanism and second inclined support mechanism, the top of the first inclined support mechanism and the top of the second inclined support mechanism can be effectively controlled to adjust the support position and the support angle of the bottom of the face layer cantilever body 4, thereby adjusting the support effect on the bottom of the face layer cantilever body 4.

[0040] In any of the above solutions, preferably, the first inclined support mechanism comprises a first inclined support screw 20 arranged obliquely, a first lower ear seat 21 and a first upper ear seat 22 are integrally formed and fixedly connected at both ends of the first inclined support screw 20, the first lower ear seat 21 is movably hingedly connected to the corresponding lateral main ear seat 14, the first upper ear seat 22 is movably hingedly connected to a first sliding ear seat 23 at the corresponding position, the first sliding ear seat 23 is slidingly connected and matched with the T-shaped sliding groove 7 at the corresponding position, and the second inclined support mechanism is arranged below the outer side of the first inclined support screw 20, the lower end of the second inclined support mechanism is movably sleeved on the outer side wall of the first inclined support screw 20, and is locked by two first linkage limiters at the upper and lower parts thereof. The first inclined support mechanism mainly relies on the first lower ear seat 21 at the bottom to achieve hinged connection with the annular main lifting seat 12 on the corresponding central vertical support structure, and the positioning of the annular main lifting seat 12 achieves the positioning of the bottom of the entire first inclined support mechanism. At the same time, the hinge connection with the first sliding ear seat 23 at the top changes the inclination angle and support position of the first inclined support screw 20, so that different cantilever supports can be achieved as needed, the entire adjustment range is large, and pre-adjustment and setting can be made according to different load requirements. The lower end of the second inclined support mechanism is supported and installed on the first inclined support screw 20 of the first inclined support mechanism, so that the first linkage limiter on the first inclined support screw 20 can be adjusted to adjust the bottom support point of the second inclined support mechanism, thereby effectively controlling the relative angle of the second inclined support mechanism relative to the first inclined support mechanism, and changing the support effect of the second inclined support mechanism on the face layer cantilever body 4.

[0041] Preferably in any of the above solutions, the secondary diagonal bracing mechanism comprises a ring-shaped lateral lifting seat 24 movably sleeved on the outer side wall of the primary diagonal bracing screw rod 20, a secondary lower ear seat 25 fixedly installed on the ring-shaped lateral lifting seat 24, a secondary diagonal bracing screw rod 26 arranged on the outer side upper portion of the secondary lower ear seat 25, the lower end of the secondary diagonal bracing screw rod 26 movably hinged at the secondary lower ear seat 25, the upper end of the secondary diagonal bracing screw rod 26 movably hinged at a secondary sliding ear seat 27, the secondary sliding ear seat 27 slidingly and clippably matched in the T-shaped sliding groove 7 at the corresponding position, a ring-shaped auxiliary lifting seat 28 movably sleeved on the middle portion outer side wall of the secondary diagonal bracing screw rod 26, and secondary linkage limiting members respectively installed on the outer side walls of the secondary diagonal bracing screw rod 26 on both sides of the ring-shaped auxiliary lifting seat 28, the two secondary linkage limiting members being matched to limit and lock the ring-shaped auxiliary lifting seat 28. The bottom of the secondary diagonal bracing mechanism is installed in the primary diagonal bracing mechanism, the inclination angle of the primary diagonal bracing mechanism can drive the inclination angle of the entire secondary diagonal bracing mechanism to be adjusted, and the relative position of the primary diagonal bracing mechanism and the secondary diagonal bracing mechanism can be adjusted by adjusting the primary linkage limiting member, so that the needs of various installation conditions can be met, and the adjustability during the entire installation process and the adaptability after the installation is completed can be effectively ensured. The cantilever support effect achieved by the cooperation of the primary diagonal bracing mechanism and the secondary diagonal bracing mechanism is adjustable, and the support point position is adjustable, so that different installation locking angles and positions can be selected according to the length of the surface layer cantilever main body 4 during the actual installation process.

[0042] The application also provides a method for installing and constructing a double-side cantilever steel structure assembly, characterized by comprising the following steps:

[0043] pre-assembling the central vertical support structure, pre-assembling the double-inclination cantilever support unit 6, and pre-assembling the vertical auxiliary support member 5;

[0044] The assembled structure is transported to the construction site by truck; the pre-assembled parts in the application can effectively ensure easy transportation during transportation, can save the construction steps on the construction site, and can reduce the on-site installation time.

[0045] The ground 1 is excavated and the stratum is reinforced, the central vertical support structure is hoisted and kept in a vertical state by using hoisting equipment after the reinforcement is completed, and the bottom of the central vertical support structure is concretely poured and reinforced;

[0046] The corresponding vertical auxiliary support members 5 are hoisted and installed in the ground 1 foundation pits on both sides of the central vertical support structure, and the pre-buried pouring reinforcement of the bottom is sequentially completed; the central vertical support structure and the vertical auxiliary support member 5 are both pre-buried and poured and fixed at the bottom, which can effectively ensure the stability of the entire structure during the bottom support.

[0047] The two-side double-inclined cantilever support units 6 are installed in sequence. When installed, the locking height of the annular main lifting seat 12 is controlled by pre-adjusting the positions of the two main locking nuts 13. The lower inner side of the primary inclined support mechanism of the vertical secondary support 5 is hingedly connected to the annular main lifting seat 12. The position adjustment of the secondary inclined support mechanism is continued by adjusting the position of the lower part of the secondary inclined support mechanism. The two-side double-inclined cantilever support units 6 can cooperate with each other to achieve multi-point support for the bidirectional cantilever structure. At the same time, when supporting on both sides, the inclination angles of the primary inclined support mechanism and the secondary inclined support mechanism can be adjusted according to specific needs, thereby effectively supporting the surface layer cantilever main body 4 of different cantilever lengths and improving the stability of the support.

[0048] After the installation of the two-side double-inclined cantilever support units 6 is completed, the surface layer cantilever main body 4 is hoisted into position using hoisting equipment. The top mounting seat 3 is fixedly connected to the center bottom of the surface layer cantilever main body 4. The primary sliding ear seat 23 and the secondary sliding ear seat 27 are sequentially slid and connected to the corresponding T-shaped sliding groove 7 at the bottom of the surface layer cantilever main body 4. The sliding position is controlled, and the top of the primary inclined support mechanism and the secondary inclined support mechanism is hingedly connected to the corresponding primary sliding ear seat 23 and secondary sliding ear seat 27 at the corresponding position.

[0049] After the above connection is completed, the annular secondary lifting seat 28 is hingedly connected to the secondary top ear seat 19 at the top of the vertical secondary support 5. The locking and tensioning of each connection part are fine-tuned. After checking that there is no error, the installation and construction of the entire steel structure assembly are completed.

[0050] Embodiment 2: A two-side cantilever steel structure assembly, comprising a center vertical support structure 2 vertically embedded and cast below the ground 1. A surface layer cantilever main body 4 is installed on the top mounting seat 3 of the center vertical support structure 2. The surface layer cantilever main body 4 is cantilevered on both sides. A vertical secondary support 5 is installed on the left and right sides of the surface layer cantilever main body 4. The bottom of each vertical secondary support 5 is embedded and cast below the ground 1. A double-inclined cantilever support unit 6 is installed between each vertical secondary support 5 and the center vertical support structure 2. The top of each double-inclined cantilever support unit 6 is slidably connected to the T-shaped sliding groove 7 at the bottom of the surface layer cantilever main body 4 at the corresponding position.

[0051] In any of the above schemes, preferably, the central vertical support structure 2 comprises a vertically arranged hollow steel structure stand column 8, the bottom of which is pre-buried and cast below the ground 1, the top of which is fixedly connected with the top mounting seat 3, a main stud 10 is installed inside the vertical main cavity 9 of the hollow steel structure stand column 8, the bottom and top of the main stud 10 are fixedly arranged, through operation openings 11 are respectively arranged on the left and right side walls of the hollow steel structure stand column 8 on both sides of the middle part of the main stud 10, an annular main lifting seat 12 is sleeved on the main stud 10 of the vertical main cavity 9, main locking nuts 13 are respectively threadedly screwed on the main stud 10 at the top and bottom of the annular main lifting seat 12, the two main locking nuts 13 cooperate to achieve locking and limiting of the annular main lifting seat 12, and lateral main ear seats 14 are respectively welded on the left and right sides of the annular main lifting seat 12, the two lateral main ear seats 14 are respectively used for movably hinged with the inner ends of the double-inclined cantilever support units 6 at the corresponding positions.

[0052] The central vertical support structure 2 designed in the application mainly serves the purpose of middle support and has a main support effect. When supporting, the bottom of the entire hollow steel structure stand column 8 is pre-buried and fixedly arranged, and the top fixedly supports the bottom center of the face layer cantilever main body 4. The main stud 10 installed in the vertical main cavity 9 of the hollow steel structure stand column 8 has two functions: one is to assist the hollow steel structure stand column 8 in vertical support, effectively forming an external annular and internal columnar structure with the main stud 10.

[0053] In addition, the locking effect of the main locking nuts 13 can also achieve control of the locking position of the annular main lifting seat 12, so that the position of the annular main lifting seat 12 and the bottom positioning position of the first inclined support mechanism connected therewith can be controlled, and the two main locking nuts 13 can be adjusted conveniently.

[0054] In any of the above schemes, preferably, the vertical auxiliary support 5 comprises a vertically arranged hollow auxiliary column 15, an auxiliary support column 17 is inserted and fitted in the central auxiliary cavity 16 of the hollow auxiliary column 15, the lower end of the auxiliary support column 17 extends to the inside of the central auxiliary cavity 16 and is fixedly connected with the top of a vertical damping spring 18 fixedly installed in the inside of the central auxiliary cavity 16, a auxiliary top ear seat 19 is fixedly installed at the top of the auxiliary support column 17, and the auxiliary top ear seat 19 is used for movably hinged with the bottom of the double-inclined cantilever support unit 6 at the corresponding position.

[0055] The main role of the vertical auxiliary support 5 is to assist in supporting, secondly, the internal vertical shock-absorbing spring 18 can assist in shock-absorbing and buffering, and thirdly, the top auxiliary top ear seat 19 can achieve hinged support of the bottom of the double-inclined cantilever support unit 6 at the current position.

[0056] In any of the above schemes, preferably, the double-inclined cantilever support unit 6 comprises a first inclined support mechanism, the upper and lower ends of which are hingedly arranged, and a second inclined support mechanism is installed at the lower middle part of the first inclined support mechanism, and the first inclined support mechanism cooperates with the second inclined support mechanism to achieve cantilever support of the cantilevered face layer cantilever main body 4 at the current position.

[0057] The double-inclined cantilever support unit 6 adopts a first inclined support mechanism and a second inclined support mechanism with different inclination degrees to form a structure similar to a hierarchical branch support, and by adjusting the corresponding first inclined support mechanism and second inclined support mechanism, the support position and support angle of the top of the first inclined support mechanism and the top of the second inclined support mechanism on the bottom of the face layer cantilever main body 4 can be effectively controlled, so that the support effect on the bottom of the face layer cantilever main body 4 can be adjusted.

[0058] In any of the above schemes, preferably, the first inclined support mechanism comprises a first inclined support screw 20 arranged at an inclination, and a first lower ear seat 21 and a first upper ear seat 22 are integrally formed and fixedly connected at both ends of the first inclined support screw 20, the first lower ear seat 21 is movably hingedly connected to the corresponding lateral main ear seat 14, the first upper ear seat 22 is movably hingedly connected to a first sliding ear seat 23 at the corresponding position, the first sliding ear seat 23 is slidingly connected and matched with the T-shaped sliding groove 7 at the corresponding position, and the second inclined support mechanism is arranged below the outer side of the first inclined support screw 20, the lower end of the second inclined support mechanism is movably sleeved on the outer side wall of the first inclined support screw 20, and is locked by the two first linkage limiters on the upper and lower parts.

[0059] The first inclined support mechanism mainly relies on the first lower ear seat 21 at the bottom to achieve hinged connection with the annular main lifting seat 12 on the corresponding central vertical support structure 2, and the positioning of the annular main lifting seat 12 achieves positioning of the bottom of the entire first inclined support mechanism, and the hinging of the first sliding ear seat 23 at the top achieves changes in the inclination angle and support position of the first inclined support screw 20, so that different cantilever supports can be achieved as needed, the entire adjustment range is large, and pre-adjustment and setting can be made according to different load requirements.

[0060] In addition, the lower end of the secondary inclined support mechanism is supported on the primary inclined support screw 20 of the primary inclined support mechanism, so that the bottom support point of the secondary inclined support mechanism can be adjusted by adjusting the primary linkage limiting piece on the primary inclined support screw 20, thereby effectively controlling the relative angle of the secondary inclined support mechanism relative to the primary inclined support mechanism, and changing the support effect of the secondary inclined support mechanism on the surface layer cantilever main body 4.

[0061] In any of the above schemes, preferably, the secondary linkage limiting piece includes a primary locking nut 29 screwed on the outer side wall of the primary inclined support screw 20 at the corresponding position, and the two primary locking nuts 29 cooperate to clamp and lock the ring-shaped lateral lifting seat 24 at the current position.

[0062] The bottom of the secondary inclined support mechanism is installed on the primary inclined support mechanism, and the inclination angle of the entire secondary inclined support mechanism can be adjusted by adjusting the inclination angle of the primary inclined support mechanism. The relative position of the primary inclined support mechanism and the secondary inclined support mechanism can also be adjusted by adjusting the primary linkage limiting piece, thereby meeting the needs of various installation conditions and effectively ensuring the adjustability during the entire installation process and the adaptability after installation.

[0063] The cantilever support effect achieved by the cooperation of the primary inclined support mechanism and the secondary inclined support mechanism is adjustable, and the support point is adjustable, so that different installation locking angles and positions can be selected according to the length of the surface layer cantilever main body 4 during the actual installation process.

[0064] In any of the above schemes, preferably, the primary linkage limiting piece includes a primary locking nut 29 screwed on the outer side wall of the primary inclined support screw 20 at the corresponding position, and the two primary locking nuts 29 cooperate to clamp and lock the ring-shaped lateral lifting seat 24 at the current position.

[0065] When adjusting the primary linkage limiting piece, only the corresponding primary locking nut 29 needs to be rotated according to the requirements to push the displacement of the ring-shaped lateral lifting seat 24 in the active adjustment state.

[0066] Preferably, in any of the above solutions, an outer threaded section of the primary inclined support screw 20 between each of the primary locking nuts 29 and the corresponding annular lateral lifting seat 24 is sleeved with a primary linkage spring 30, and two ends of each of the primary linkage springs 30 are abutted against the primary locking nut 29 and the annular lateral lifting seat 24 at the corresponding positions.

[0067] The locking effect of the primary linkage spring 30 in cooperation with the corresponding primary locking nut 29 can better achieve locking and can reserve a certain amplitude of buffer amplitude as required, and the buffer amplitude can be adjusted by rotating the position of the primary locking nut 29 as required.

[0068] Preferably, in any of the above solutions, the secondary linkage limiting piece is a secondary locking nut 31 threaded on the outer sidewall of the secondary inclined support screw 26 at the corresponding position, and the two secondary locking nuts 31 cooperate to achieve clamping locking of the annular secondary lifting seat 28 at the current position.

[0069] When adjusting, the secondary linkage limiting piece only needs to rotate the corresponding secondary locking nut 31 to push the swing angle of the annular secondary lifting seat 28 in the active adjustment state to match the purpose.

[0070] Preferably, in any of the above solutions, an outer threaded section of the secondary inclined support screw 26 between each of the secondary locking nuts 31 and the corresponding annular secondary lifting seat 28 is sleeved with a secondary linkage spring 32, and two ends of each of the secondary linkage springs 32 are abutted against the secondary locking nut 31 and the annular secondary lifting seat 28 at the corresponding positions.

[0071] The locking effect of the secondary linkage spring 32 in cooperation with the corresponding secondary locking nut 31 can better achieve locking and can reserve a certain amplitude of buffer amplitude as required, and the buffer amplitude can be adjusted by rotating the position of the secondary locking nut 31 as required.

[0072] The application also provides a mounting and construction method of the double-side cantilever type steel structure assembly.

[0073] The central vertical support structure 2 is pre-assembled, the double-inclined cantilever support unit 6 is pre-assembled, and the vertical auxiliary support 5 is pre-assembled.

[0074] The assembled structure is transported to the construction site by truck;

[0075] The pre-assembled components in the application can effectively ensure convenient transportation during transportation, can save the construction steps at the construction site, and can reduce the on-site installation time.

[0076] The ground 1 is excavated and the stratum is reinforced, after the reinforcement is completed, the center vertical support structure 2 is hoisted by hoisting equipment and kept in a vertical state, and the bottom of the center vertical support structure 2 is poured and reinforced with concrete;

[0077] The corresponding vertical auxiliary support 5 is hoisted and installed in the ground 1 foundation pit on both sides of the center vertical support structure 2, and the pre-buried pouring and reinforcement of the bottom is completed in turn;

[0078] The center vertical support structure 2 and the vertical auxiliary support 5 are both pre-buried and poured and fixed at the bottom, which can effectively ensure the stability of the whole structure during the bottom support.

[0079] The two double-inclined cantilever support units 6 on both sides are installed in turn, the positions of the two main locking nuts 13 are adjusted in advance during installation to control the locking height of the annular main lifting seat 12, the lower inner side of the first-stage inclined bracing mechanism of the vertical auxiliary support 5 is hinged on the annular main lifting seat 12, and the position adjustment of the second-stage inclined bracing mechanism is continued by adjusting the position of the lower part of the second-stage inclined bracing mechanism;

[0080] The two double-inclined cantilever support units 6 on both sides can cooperate with each other to realize multi-point support of the bidirectional cantilever structure, and can adjust the inclination angles of the first-stage inclined bracing mechanism and the second-stage inclined bracing mechanism according to specific needs during bilateral support, finally realizing effective support of the surface layer cantilever main body 4 with different cantilever lengths and improving the stability of the support.

[0081] After the installation of the two double-inclined cantilever support units 6 on both sides is completed, the surface layer cantilever main body 4 is hoisted into place by hoisting equipment, the top mounting seat 3 is fixedly connected with the center bottom of the surface layer cantilever main body 4, each first-stage sliding ear seat 23 and second-stage sliding ear seat 27 is slidably connected to the corresponding T-shaped sliding groove 7 at the bottom of the surface layer cantilever main body 4, the sliding position is controlled, and the top of each first-stage inclined bracing mechanism and second-stage inclined bracing mechanism is hingedly connected with the corresponding first-stage sliding ear seat 23 and second-stage sliding ear seat 27 at the corresponding position;

[0082] After the above connection is completed, each annular auxiliary lifting seat 28 is hingedly connected with the auxiliary top ear seat 19 at the top of the corresponding vertical auxiliary support 5;

[0083] The locking and tensioning of each connection part are fine-tuned, and the installation and construction of the whole steel structure assembly is completed after checking.

[0084] Specific working principle:

[0085] The bilateral cantilever type steel structure assembly designed in the application can realize stable support of the whole upper layer cantilever main body 4 by the center vertical support structure 2 and the bilateral vertical auxiliary support 5, and can effectively ensure multi-point support during support by the bilateral double-inclined cantilever support unit 6, and the position of each point support can be adjusted as needed, and the bilateral support parts are provided with buffer damping structures that can be buffered and displaced, so as to effectively ensure quick buffer damping during support, and effectively improve the stability and buffer damping effect of the whole upper layer cantilever main body 4.

[0086] The bilateral cantilever type steel structure assembly designed in the application can be applied to the bilateral cantilever type upper layer steel structure system of an outdoor stadium roof, and can realize effective stable support of the whole structure by center support and bilateral cantilever support; the center vertical support structure 2 and the bilateral vertical auxiliary support 5 can realize effective rigid support strength in the vertical direction, and can realize multi-point support with the center vertical support structure 2 and the vertical auxiliary support 5 by the bilateral double-inclined cantilever support unit 6 during connection of each structure and the corresponding upper layer cantilever main body 4, so as to effectively ensure the cantilever support effect and firmness; the bottom locking position of the bilateral double-inclined cantilever support unit 6 connected on both sides can be controlled during adjustment of the center vertical support structure 2, so as to achieve the purpose of controlling the lower positioning position of the primary inclined bracing mechanism of the bilateral double-inclined cantilever support unit 6, and the top support of the vertical auxiliary support 5 can realize buffer support of the lower part of the secondary inclined bracing mechanism, so as to ensure multi-point support and buffer damping effect during support of the bilateral double-inclined cantilever support unit 6 composed of the primary inclined bracing mechanism and the secondary inclined bracing mechanism, effectively realize wind load buffer effect and safety stability of the whole upper layer cantilever main body 4 structure under wind load, and reduce excessive damage caused by direct rigid tie.

[0087] The above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application; any alternative improvement or change made by those skilled in the art to the embodiments of the application falls within the protection scope of the application.

[0088] The parts not described in the application are well-known to those skilled in the art.

Claims

1. A double-sided overhanging steel structural assembly, characterized by: The utility model provides a kind of center vertical support structure of vertical pre-buried pouring setting below ground, face layer overhanging main body is installed on the top mounting seat of the center vertical support structure, the both sides of the face layer overhanging main body are overhanging setting, vertical auxiliary support piece is respectively installed on the left and right sides of the face layer overhanging main body, the bottom of each vertical auxiliary support piece is pre-buried pouring below ground, a double inclined overhanging support unit is respectively installed between each vertical auxiliary support piece and the center vertical support structure, the top of each double inclined overhanging support unit is respectively with the T-shaped slide groove of the bottom of the face layer overhanging main body in corresponding position mutually slidingly connected with each other; The center vertical support structure includes a vertically arranged hollow steel structure stand column, the bottom of the hollow steel structure stand column is pre-buried pouring below ground, the top of the hollow steel structure stand column is fixedly connected with the top mounting seat, a main screw column is installed in the vertical main cavity of the hollow steel structure stand column, the bottom and the top of the main screw column are fixedly arranged, through operating openings are respectively provided on the left and right side walls of the hollow steel structure stand column on the two sides of the middle part of the main screw column, an annular main lifting seat is sleeved on the main screw column of the vertical main cavity, main locking nuts are threadedly screwed on the main screw column at the top and the bottom of the annular main lifting seat, the two main locking nuts cooperate to achieve locking and limiting of the annular main lifting seat, lateral main ear seats are respectively welded on the left and right sides of the annular main lifting seat;The vertical auxiliary support piece includes a vertically arranged hollow auxiliary column, a auxiliary support column is inserted and fitted in the central auxiliary cavity of the hollow auxiliary column, the lower end of the auxiliary support column extends into the central auxiliary cavity and is abutted and fixedly connected with the top of a vertical shock-absorbing spring fixed in the central auxiliary cavity, a auxiliary top ear seat is fixed on the top of the auxiliary support column;A secondary inclined bracing mechanism is installed on the middle lower side of the primary inclined bracing mechanism, which cooperates with the primary inclined bracing mechanism to support the face layer overhanging main body in the current position in an overhanging state; The primary inclined bracing mechanism includes a primary inclined bracing screw rod arranged obliquely, a primary lower ear seat and a primary upper ear seat are integrally formed and fixedly connected at the two ends of the primary inclined bracing screw rod, the primary lower ear seat is movably hinged with the lateral main ear seat at the corresponding position, the primary upper ear seat is movably hinged with the primary sliding ear seat at the corresponding position, the primary sliding ear seat is slidingly connected with the T-shaped slide groove at the corresponding position, the secondary inclined bracing mechanism is provided below the outer side of the primary inclined bracing screw rod, the lower end of the secondary inclined bracing mechanism is movably sleeved on the outer side wall of the primary inclined bracing screw rod and is locked by the two primary linkage limiting members on its upper part and lower part. The secondary inclined brace mechanism comprises a ring-shaped lateral lifting seat movably sleeved on the outer side wall of the primary inclined brace screw rod, a secondary lower ear seat fixedly installed on the ring-shaped lateral lifting seat, a secondary inclined brace screw rod arranged on the outer side upper portion of the secondary lower ear seat, the lower end of the secondary inclined brace screw rod movably hinged at the secondary lower ear seat, the upper end of the secondary inclined brace screw rod movably hinged at a secondary sliding ear seat, the secondary sliding ear seat slidingly and jointly fitted in a T-shaped sliding groove at a corresponding position, a ring-shaped auxiliary lifting seat movably sleeved on the outer side wall of the middle portion of the secondary inclined brace screw rod, the ring-shaped auxiliary lifting seat hinged with an auxiliary top ear seat, secondary linkage limiting members respectively installed on the outer side walls of the secondary inclined brace screw rods on both sides of the ring-shaped auxiliary lifting seat, and the two secondary linkage limiting members cooperatively limiting and locking the ring-shaped auxiliary lifting seat.

2. A double-sided overhanging steel structural assembly according to claim 1, characterized in that: The primary linkage limiting member comprises primary locking nuts threadedly screwed on the outer side walls of the primary inclined brace screw rods at corresponding positions, and the two primary locking nuts cooperatively clamp and lock the ring-shaped lateral lifting seat at the current position.

3. A method of installing a double-sided cantilevered steel structural assembly as claimed in claim 2, wherein, The method comprises the following steps: pre-assembling a central vertical support structure, pre-assembling double-inclined cantilever support units, and pre-assembling vertical auxiliary support members; transporting the assembled structure to a construction site; excavating a foundation pit on the ground and reinforcing the stratum, hoisting the central vertical support structure to keep it in a vertical state using hoisting equipment after the reinforcement is completed, and pouring and reinforcing concrete at the bottom of the central vertical support structure; hoisting and installing corresponding vertical auxiliary support members in the foundation pits on both sides of the central vertical support structure, and sequentially completing the pre-buried pouring and reinforcement at the bottom; sequentially installing the double-inclined cantilever support units on both sides, adjusting the positions of the two primary locking nuts to control the locking height of the ring-shaped main lifting seat during installation, controlling the lower inner hinge of the primary inclined brace mechanism of the vertical auxiliary support member on the ring-shaped main lifting seat, and continuing to adjust the position of the secondary inclined brace mechanism by adjusting the position of the lower portion of the secondary inclined brace mechanism; after the installation of the double-inclined cantilever support units on both sides is completed, hoisting the surface layer cantilever main body into position using hoisting equipment, controlling the fixed connection between the top mounting seat and the central bottom of the surface layer cantilever main body, slidingly and jointly fitting each primary sliding ear seat and secondary sliding ear seat into the T-shaped sliding grooves at the corresponding positions on the bottom of the surface layer cantilever main body, controlling the sliding position and realizing the hinged connection between the top portions of each primary inclined brace mechanism and secondary inclined brace mechanism and the corresponding primary sliding ear seat and secondary sliding ear seat; after the above connection is completed, movably hinging each ring-shaped auxiliary lifting seat with the auxiliary top ear seat at the top of the corresponding vertical auxiliary support member; fine-tuning the locking and tensioning of each connection position, and completing the installation and construction of the entire steel structure assembly after checking that there is no error.

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