A torsion-resistant prefabricated steel structure for a green building system

Abstract

The present invention discloses a torsion-resistant prefabricated steel structure for a green building system, belonging to the technical field of prefabricated steel structures. A steel structure for building walls is provided, and an I-beam is nested and connected to the inner surface of the wall steel structure. It includes: a first welding part, which is welded and connected in the slot of the I-beam. A threaded rod is rotatably connected to the inner surface of the first welding part, and an extrusion block is threadedly connected to the outer surface of the threaded rod. At the same time, the extrusion block is provided with an inclined sliding mechanism. A wall steel structure is provided. Through the first welding part and the second welding part used for welding the I-beam, it is used to assemble the first connecting part and the second connecting part. In the inner groove of the I-beam, it is used for load-bearing to improve the torsional resistance and enhance the load-bearing stability. And in cooperation with the use of the support frame and the diagonal brace, it controls the convenience of the limit support and assembly between the I-beams, and simultaneously improves the torsional resistance of the I-beam during use, preventing tilting and falling off.

Description

Technical Field

[0001] The invention relates to the technical field of assembled steel structures, and in particular to a torsion-resistant assembled steel structure for a green building system. Background Art

[0002] Green buildings protect the environment during the construction process and reduce pollution by saving resources such as energy, land, water and materials during the entire life cycle of the building, and provide people with healthy use space. Prefabricated steel structures are used to improve the construction effect of green buildings and improve the building strength through prefabricated steel structures.

[0003] During use, it is not convenient to stably nest and assemble the steel structure according to the building requirements, which may easily cause uneven force on the steel structure during construction, affecting the safety of use;

[0004] In order to overcome the above defects, the existing technology (application number CN201610365109.4, application date 2016-05-27 Chinese patent) high-strength steel structure bracket, the high-strength steel structure bracket, the web plate adopts corrugated thin-walled plate, which greatly improves the bending resistance of the bracket, uses less steel, and saves 30-40% compared with the existing structure; has good bending and torsion resistance, and high shear resistance; is light in weight, suitable for areas with poor ground endurance, and has good seismic resistance; is light and convenient to install, and is environmentally friendly, energy-saving and economical;

[0005] There is also a prior art (application number CN202210794408.5, Chinese patent application date 2022-07-07) a steel structure hanger, which, through the setting of a control device and a buffer device, causes the fixing device to vibrate when subjected to external impact, and the vibration is transmitted to the swing block through the device housing, and the swing block pulls the tension spring on one side of the two ends of the top, and at this time the swing block rotates along the round rod, and when the external impact force reaches a certain intensity, the swing amplitude of the swing block increases, and at this time the centrifugal force on the moving rod and the counterweight block increases and pulls the spring at the top of the moving rod, and at this time the moving rod drives the contact plate to slide out to the bottom of the circular groove, and the contact plate squeezes and touches the control switch, and the control switch opens the electric valve, and the gas inside the air storage bag is poured into the buffer air bag from the air outlet pipe, and as the external impact force weakens, the centrifugal force on the moving rod decreases, and at this time the spring at the top of the moving rod pulls the moving rod back through its own resilience, and when the device is subjected to a large impact, it can wrap the steel pipe in time to prevent the steel pipe from vibrating and hitting the inner wall, thereby improving the degree of automation of the device;

[0006] and the prior art (a Chinese patent with the application number CN201710296326.7 and the filing date of April 28, 2017) for building steel structures. It sets a sealing plate outside the anti-corrosion layer and drives the sealing plate to move left and right through a power driving device I, so that the sealing plate blocks the gaps formed when building temporary buildings between different building steel structures, preventing rain and wind from entering through the gaps and corroding the building steel structures, and making the temporary building have good heat preservation performance. When it is necessary to rotate the building steel structure, the left and right sealing plates are moved towards the middle, which does not affect the rotation of the building steel structure. When the rotation is completed, the left and right sealing plates are pushed towards both sides to block the gaps;

[0007] Although the prior art can complete the assembly, during the working process, the steel structures are generally connected by screwing, welding and riveting, etc., which is not convenient to effectively improve the convenience during the assembly of the steel structures and affects the torsional resistance during the use of the steel structures. Especially when the larger-sized I-beams in the steel structures are used for bearing, it is easy to cause the I-beams to bear heavy loads, affecting their torsional resistance and their use safety.

[0008] In view of the above problems, it is urgent to innovate and design on the basis of the original prefabricated steel structures. Summary of the Invention

[0009] The purpose of the present invention is to provide a torsion-resistant prefabricated steel structure for a green building system to solve the problems mentioned in the above background technology, that is, it is not convenient to effectively improve the convenience during the assembly of the steel structures and affects the torsional resistance during the use of the steel structures. Especially when the larger-sized I-beams in the steel structures are used for bearing, it is easy to cause the I-beams to bear heavy loads, affecting their torsional resistance and their use safety.

[0010] To achieve the above purpose, the present invention provides the following technical solution: A torsion-resistant prefabricated steel structure for a green building system is provided with a building wall steel structure, and an I-beam is nested and connected to the inner surface of the wall steel structure;

[0011] It includes: a first welding part, which is welded and connected in the groove of the I-beam, and a threaded rod is rotatably connected to the inner surface of the first welding part. A pressing block is threadedly connected to the outer surface of the threaded rod, and the pressing block is provided with an inclined sliding mechanism;

[0012] A third welding part, which is welded and connected to the outer side surface of the I-beam. A diagonal brace is nested and connected in the groove of the I-beam, and a nested part is telescopically connected to the inner surface of the diagonal brace. A first compression spring is connected between the nested part and the diagonal brace. A first telescopic buckle is installed on the outer surface of the nested part and is limited and clamped in the through hole opened in the I-beam, and the diagonal brace is provided with a limit nesting mechanism.

[0013] Preferably, the first welding part and the I-beam form a welding structure, the first welding part and the threaded rod form a rotating structure, and the threaded rod and the extrusion block form a threaded structure.

[0014] With the above structure, during use, effective welding positioning can be achieved, and the extrusion block adjusted by threads is used for limiting and extruding in the later stage.

[0015] Preferably, an extrusion rod is slidably connected to the inner surface of the extrusion block in the oblique sliding mechanism, a limiting rod is installed on the outer surface of the extrusion rod, the limiting rod is slidably limited on the inner surface of the first welding part, and a second connecting part is snap-connected to the outer surface of the limiting rod;

[0016] A first connecting part is nested and connected to the lower side of the inner surface of the first welding part, a second welding part is nested and connected to the outer surface of the first connecting part, and the second welding part is welded in the groove of the I-beam.

[0017] With the above structure, during use, the position of the limiting rod can be effectively controlled by adjusting the extrusion block, and the second connecting part is limited and snap-connected, which is used to improve the torsional resistance of the I-beam during support.

[0018] Preferably, the extrusion block and the extrusion rod form a nested sliding structure, the outer surfaces of the extrusion rod and the limiting rod are embedded and installed, the limiting rod and the first welding part form a telescopic structure, and the first welding part and the second connecting part form a limiting snap connection structure through the limiting rod.

[0019] With the above structure, during use, it is convenient to effectively control the position of the extrusion rod, so as to control the limiting snap connection of the limiting rod to the second connecting part.

[0020] Preferably, the first welding part and the first connecting part form a limiting nested structure, the first connecting part and the second welding part form an embedded structure, and the second welding part and the I-beam form a welding structure.

[0021] With the above structure, during use, it is convenient to effectively assemble the first connecting part, which is used in cooperation with the second connecting part for alternate support, so as to control the stability of the I-beam, and cooperate with the second welding part to improve the stability of the first connecting part.

[0022] Preferably, the third welding part and the I-beam form a welding structure, the I-beam and the diagonal brace form a nested structure, the diagonal brace and the embedded sleeve form an elastic sliding structure through the first compression spring, and the embedded sleeve and the I-beam form a limiting snap connection structure through the first telescopic buckle.

[0023] With the above structure, during use, the stability of the third welding part can be effectively improved, and then the diagonal brace is assembled to improve the stability during the assembly of I-beams.

[0024] Preferably, a first return spring is elastically connected to the inner surface of the third welding part in the limit nesting mechanism, and the other side of the first return spring is connected to a first clamping part. The outer surface of the first clamping part is snap-fitted with a limiting part, and the limiting part is nested and limited on the inner surface of the third welding part. At the same time, a support frame is installed on the outer surface of the limiting part.

[0025] With the above structure, it is convenient to control the third welding part to form a limit snap fit with the support frame during use, and form a limit after sliding, improving the assembly convenience.

[0026] Preferably, the third welding part and the first clamping part constitute an elastic telescopic structure through the first return spring, and the first clamping part and the support frame constitute a limit snap fit structure through the limiting part. The limiting part and the third welding part constitute a sliding nesting structure. At the same time, the support frame is embedded and installed on the outer surface of the limiting part.

[0027] With the above structure, the stability of the support frame is controlled during use, the assembly convenience of the support frame is improved, the assembly time is reduced, and the safety during the assembly process is improved.

[0028] Preferably, a rotating shaft is rotatably connected to the middle section of the inner surface of the diagonal brace in the limit nesting mechanism, a limiting gear is installed on the outer surface of the rotating shaft, a clamping block is snap-fitted to the upper side of the outer surface of the limiting gear, and a second return spring is elastically connected between the clamping block and the diagonal brace;

[0029] A winding roller is installed on the outer surface of the rotating shaft, a steel wire rope is installed on the outer surface of the winding roller, a limiting roller is attached to the outer surface of the steel wire rope, a second telescopic buckle is installed at the upper end of the outer surface of the steel wire rope, and the second telescopic buckle is slidably limited on the inner surface of the diagonal brace. At the same time, a second pressing spring is elastically connected between the second telescopic buckle and the diagonal brace.

[0030] With the above structure, it is convenient to stably connect the diagonal brace during use, and cooperate with the limiting gear and winding roller installed on the rotating shaft to improve the stability of the limit snap fit of the telescopic buckle.

[0031] Preferably, the diagonal brace and the limiting gear constitute a rotating structure through the rotating shaft, the limiting gear and the diagonal brace constitute a limit snap fit structure through the clamping block and the second return spring, the rotating shaft and the limiting gear and the winding roller constitute an integral structure, the winding roller and the steel wire rope and the second telescopic buckle constitute an integral structure, the steel wire rope and the limiting roller constitute a fitting rotating structure, the second telescopic buckle and the diagonal brace constitute an elastic telescopic structure through the second pressing spring, and the diagonal brace and the I-beam constitute a limit snap fit structure through the second telescopic buckle.

[0032] With the above structure, during use, the rotation shaft can be effectively controlled to simultaneously adjust the rotation of the limit gear and the winding roller. After the expansion buckle II is extended and engaged with the I-beam, it can cooperate with the clamping part to limit the use of the winding roller connected to the limit gear, and cooperate with the use of the compression spring II to prevent detachment.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] 1. There is a wall steel structure. The welding parts I and II used for welding the I-beams are used to assemble the connecting parts I and II. In the inner groove of the I-beam, it is used to bear weight, improve torsional resistance, and improve the bearing stability. And in cooperation with the use of the support frame and the diagonal brace, it controls the convenience of the limit support assembly between the I-beams, and synchronously improves the torsional resistance of the I-beams during use, preventing tilting and falling off.

[0035] Furthermore, the set support frame is nested by sliding, and in cooperation with the elastic clamping structure of the welding part III, it controls the stability of the support frame during assembly, improves the assembly convenience and efficiency, and prevents falling off. And in cooperation with the use of the expansion buckle I set on the diagonal brace, it can be squeezed and conveniently engaged, and in cooperation with the expansion and limit of the expansion buckle II, it prevents the expansion buckle I from falling off.

[0036] 2. There is an oblique sliding mechanism, which is convenient to adjust the screw rod to control the expansion and contraction adjustment of the extrusion block, thereby controlling the position of the extrusion part, and controlling the limit clamping of the limit rod to the connecting part II, improving the stability and assembly convenience of the connecting part II during use, and preventing the influence on the use strength of the I-beam, and improving the torsional resistance of the I-beam.

[0037] 3. There is a limit nesting mechanism, which is convenient to form rotational limits for the winding roller synchronously installed with the rotation shaft through the limit gear assembled by the rotation shaft. Then, when the expansion buckle II is retracted and used for assembly, it prevents falling off, improves the convenience of assembling the diagonal brace, prevents the expansion buckle I from jamming during assembly, and prevents the influence on the safety of the diagonal brace assembly.

[0038] Furthermore, through the cooperation of the set limit gear and the clamping block, the stability of the winding roller is effectively controlled, the rotation between the steel wire rope and the limit roller is improved, and the stability of the expansion buckle II is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a three-dimensional structure schematic diagram of the wall steel structure of the present invention;

[0040] Figure 2 It is a three-dimensional structure schematic diagram of the I-beam of the present invention;

[0041] Figure 3 It is a half-sectional three-dimensional structure schematic diagram of the welding part I of the present invention;

[0042] Figure 4 This is a schematic three-dimensional structure diagram of a partial cross-section of a welded part of the present invention;

[0043] Figure 5 This is a schematic three-dimensional structure diagram of a connecting part of the present invention;

[0044] Figure 6 This is a schematic three-dimensional structure diagram of a half-section of a third welded part of the present invention;

[0045] Figure 7 For the present invention Figure 6 Schematic three-dimensional enlarged structure diagram at position A in;

[0046] Figure 8 This is a schematic three-dimensional structure diagram of a partial cross-section of a diagonal brace of the present invention;

[0047] Figure 9 For the present invention Figure 8 Schematic three-dimensional enlarged structure diagram at position B in;

[0048] Figure 10 This is a schematic three-dimensional structure diagram of a second expansion buckle of the present invention;

[0049] Figure 11 For the present invention Figure 10 Schematic three-dimensional enlarged structure diagram at position C in.

[0050] In the figure: 1, wall steel structure; 2, I-beam; 3, first welded part; 301, first connecting part; 302, second welded part; 4, threaded rod; 5, extrusion block; 6, extrusion rod; 7, limiting rod; 8, second connecting part; 9, third welded part; 901, first return spring; 902, first clamping part; 903, limiting part; 904, support frame; 10, diagonal brace; 11, first extrusion spring; 12, embedding sleeve; 13, first expansion buckle; 14, rotating shaft; 15, limiting gear; 16, clamping block; 17, second return spring; 18, winding roller; 19, steel wire rope; 20, limiting roller; 21, second expansion buckle; 22, second extrusion spring. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] Please refer to Figures 1-11 , the present invention provides a technical solution: an anti-torsion prefabricated steel structure for a green building system, provided with a building wall steel structure 1, and an I-beam 2 is nested and connected to the inner surface of the wall steel structure 1.

[0053] Example 1: As Figures 1-5 shown in this technical solution, the present invention provides the following technical solution: A torsion-resistant prefabricated steel structure for a green building system, which discloses:

[0054] It includes: a first welded part 3, which is welded and connected in the slot of the I-beam 2, and a threaded rod 4 is rotatably connected to the inner surface of the first welded part 3. A pressing block 5 is threadedly connected to the outer surface of the threaded rod 4. At the same time, the pressing block 5 is provided with an oblique sliding mechanism;

[0055] The first welded part 3 and the I-beam 2 form a welded structure, the first welded part 3 and the threaded rod 4 form a rotating structure, and the threaded rod 4 and the pressing block 5 form a threaded structure.

[0056] In the oblique sliding mechanism, a pressing rod 6 is slidably connected to the inner surface of the pressing block 5. A limiting rod 7 is installed on the outer surface of the pressing rod 6, and the limiting rod 7 is limited to slide on the inner surface of the first welded part 3. A connecting part two 8 is snap-connected to the outer surface of the limiting rod 7;

[0057] A connecting part one 301 is nested and connected to the lower side of the inner surface of the first welded part 3. A second welded part 302 is nested and connected to the outer surface of the connecting part one 301, and the second welded part 302 is welded in the slot of the I-beam 2.

[0058] The pressing block 5 and the pressing rod 6 form a nested sliding structure. The outer surfaces of the pressing rod 6 and the limiting rod 7 are embedded and installed. The limiting rod 7 and the first welded part 3 form a telescopic structure. At the same time, the first welded part 3 and the connecting part two 8 form a limiting snap structure through the limiting rod 7.

[0059] The first welded part 3 and the connecting part one 301 form a limiting nested structure. The connecting part one 301 and the second welded part 302 form an embedded structure. The second welded part 302 and the I-beam 2 form a welded structure.

[0060] During use, when the wall steel structure 1 is being built, the welded part one 3 will be assembled by positioning the I-beams 2 and welded in the groove between them. The welded part one 3 is symmetrically arranged, and the symmetric welded part one 3 is arranged at equal intervals according to requirements. Between the symmetric welded part one 3, the connecting part two 8 is nested and assembled, so as to control the threaded rod 4 rotatably connected in the welded part one 3, and the threaded adjustment extrusion block 5 forms a limited telescopic movement in the welded part one 3, so that the inclined sliding extrusion can adjust the symmetric extrusion rods 6 to expand towards both sides of the welded part one 3, thereby controlling the limited sliding of the limit rod 7 installed on the extrusion rod 6 in the welded part one 3, so as to form a limit clamping use for the nested connecting part two 8, and cooperate with the connecting part one 301 nested and assembled between the welded part one 3 and the welded part two 302 nested and assembled in the middle section of the connecting part one 301, and welded and positioned on the inner surface of the I-beam 2, so that the I-beam 2 can be used for anti-torsion support through the connecting part one 301 and the connecting part two 8, improving the stability of the I-beam 2 and increasing the support safety of the I-beam 2.

[0061] Example 2: As Figure 1 , Figure 2 , Figure 6 and Figure 7 shown in the technical solution, on the basis of Example 1, the convenience and safety during the assembly of the support frame 904 are also disclosed, and the specific content is as follows:

[0062] On the inner surface of the welded part three 9 in the limit nesting mechanism, a first return spring 901 is elastically connected, and on the other side of the first return spring 901, a first clamping part 902 is connected. And the outer surface of the first clamping part 902 is snap-connected with a limiting part 903, and the limiting part 903 is limited and nested on the inner surface of the welded part three 9. At the same time, a support frame 904 is installed on the outer surface of the limiting part 903.

[0063] The welded part three 9 and the first clamping part 902 constitute an elastic telescopic structure through the first return spring 901, and the first clamping part 902 and the support frame 904 constitute a limit clamping structure through the limiting part 903. And the limiting part 903 and the welded part three 9 constitute a sliding nesting structure. At the same time, the support frame 904 and the outer surface of the limiting part 903 are installed in an embedded manner.

[0064] After the I-beam 2 is normally installed in the use position, weld and assemble the welded part three 9, hoist the support frame 904, control the limit piece 903 for installing the support frame 904 to be in limit sliding connection with the inner surface of the welded part three 9, and squeeze the first clamping piece 902 to slide within the welded part three 9. Control the first return spring 901 between the welded part three 9 and the first clamping piece 902 to contract, and then cooperate with the continuous falling and assembling of the limit piece 903. Control the elasticity of the first clamping piece 902 and the first return spring 901 to form a limit clamping of the limit piece 903, improve the stability of the support on one side of the I-beam 2, reduce the inclination between I-beams 2, and control the safety during the assembly of the I-beam 2.

[0065] Embodiment 3: As Figure 1 、 Figure 2 and Figures 8-11 shown in the technical solution, on the basis of Embodiment 2, the stability and safety of the assembly of the diagonal brace 10 are also disclosed, and the specific content is as follows:

[0066] The welded part three 9 is welded and connected to the outer surface side of the I-beam 2, and the diagonal brace 10 is nested and connected within the slot of the I-beam 2. The telescopic connection piece 12 is telescopically connected to the inner surface of the diagonal brace 10. At the same time, a first compression spring 11 is connected between the telescopic connection piece 12 and the diagonal brace 10. A first telescopic buckle 13 is installed on the outer surface of the telescopic connection piece 12, and the first telescopic buckle 13 is in limit clamping connection with the through hole opened in the I-beam 2. And the diagonal brace 10 is provided with a limit nesting mechanism.

[0067] The welded part three 9 and the I-beam 2 form a welded structure, the I-beam 2 and the diagonal brace 10 form a nested structure, the diagonal brace 10 and the telescopic connection piece 12 form an elastic sliding structure through the first compression spring 11, and the telescopic connection piece 12 and the I-beam 2 form a limit clamping structure through the first telescopic buckle 13.

[0068] In the limit nesting mechanism, a rotating shaft 14 is rotatably connected to the middle section of the inner surface of the diagonal brace 10, a limit gear 15 is installed on the outer surface of the rotating shaft 14, a clamping block 16 is clamped and connected to the upper side of the outer surface of the limit gear 15, and a second return spring 17 is elastically connected between the clamping block 16 and the diagonal brace 10;

[0069] A winding roller 18 is installed on the outer surface of the rotating shaft 14, a steel wire rope 19 is installed on the outer surface of the winding roller 18, a limiting roller 20 is in fitting connection with the outer surface of the steel wire rope 19, a second telescopic buckle 21 is installed at the upper end of the outer surface of the steel wire rope 19, and the second telescopic buckle 21 is in limit sliding on the inner surface of the diagonal brace 10. At the same time, a second compression spring 22 is elastically connected between the second telescopic buckle 21 and the diagonal brace 10.

[0070] The diagonal brace 10 forms a rotating structure with the limit gear 15 through the rotating shaft 14, and the limit gear 15 forms a limit clamping structure with the diagonal brace 10 through the clamping block 16 and the second return spring 17. Moreover, the rotating shaft 14, the limit gear 15 and the winding roller 18 form an integrated structure. At the same time, the winding roller 18, the steel wire rope 19 and the second telescopic buckle 21 form an integrated structure. And the steel wire rope 19 forms a fitting rotating structure with the limit roller 20. Also, the second telescopic buckle 21 forms an elastic telescopic structure with the diagonal brace 10 through the second extrusion spring 22. Meanwhile, the diagonal brace 10 forms a limit clamping structure with the I-beam 2 through the second telescopic buckle 21.

[0071] After installing the first connecting piece 301, the second connecting piece 8 and the support frame 904 on the I-beam 2, at the symmetry plane of the first connecting piece 301 installed on the I-beam 2, the clamping block 16 of the assembled diagonal brace 10 can be controlled to move upward, and the second return spring 17 is squeezed to form a contraction, so as to control the rotation of the limit gear 15 installed on the rotating shaft 14, and then control the contraction of the winding roller 18 installed on the rotating shaft 14, and drive the steel wire rope 19 to form a winding. Then it can cooperate with the limit roller 20 to support the rotation of the contraction of the steel wire rope 19, and drive the second telescopic buckle 21 installed on the steel wire rope 19 to form a telescopic movement and squeeze the second extrusion spring 22. Then the clamping block 16 can be loosened to form a limit clamping on the limit gear 15, and the second telescopic buckle 21 is controlled to contract into the inner surface of the diagonal brace 10, which is convenient for the assembly and use of the diagonal brace 10. Then the diagonal brace 10 can be hoisted, the end of the diagonal brace 10 is nested in the I-beam 2, and the diagonal brace 10 is squeezed in the I-beam 2, so as to squeeze the first telescopic buckle 13 connected to the diagonal brace 10, control the contraction of the embedding kit 12 in the diagonal brace 10, and contract the first extrusion spring 11 until the end of the diagonal brace 10 is completely nested in the I-beam 2, and the first telescopic buckle 13 is nested in the hole opened on the I-beam 2. Then the support clamping of the first telescopic buckle 13 on the inner surface of the I-beam 2 can be adjusted, so as to control the clamping block 16 to disengage from the limit gear 15, and the second telescopic buckle 21 will be controlled to expand through the elasticity of the second extrusion spring 22, and the second telescopic buckle 21 is limited and nested in the I-beam 2, which improves the stability of the assembly of the first telescopic buckle 13, prevents the diagonal brace 10 from falling off, and improves the stability and safety of the connection between the I-beams 2.

[0072] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art.

[0073] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A torsion-resistant prefabricated steel structure for a green building system, provided with a building wall steel structure (1), and an I-beam (2) is nested and connected to the inner surface of the wall steel structure (1); It is characterized in that Comprising: A first welding piece (3), welded and connected in the slot of the I-beam (2), and a threaded rod (4) is rotatably connected to the inner surface of the first welding piece (3), and an extrusion block (5) is threadedly connected to the outer surface of the threaded rod (4), and the extrusion block (5) is provided with an oblique sliding mechanism; In the oblique sliding mechanism, an extrusion rod (6) is slidably connected to the inner surface of the extrusion block (5), and a limiting rod (7) is installed on the outer surface of the extrusion rod (6), and the limiting rod (7) is limited and slid on the inner surface of the first welding piece (3), and a second connecting piece (8) is snap-connected to the outer surface of the limiting rod (7); A first connecting piece (301) is nested and connected to the lower side of the inner surface of the first welding piece (3), and a second welding piece (302) is nested and connected to the outer surface of the first connecting piece (301), and the second welding piece (302) is welded in the slot of the I-beam (2); A third welding piece (9), welded and connected to the outer side surface of the I-beam (2), and a diagonal brace (10) is nested and connected in the slot of the I-beam (2), and a nested sleeve (12) is telescopically connected to the inner surface of the diagonal brace (10), and a first compression spring (11) is connected between the nested sleeve (12) and the diagonal brace (10), and a first telescopic buckle (13) is installed on the outer surface of the nested sleeve (12), and the first telescopic buckle (13) is limited and snapped in a through hole opened in the I-beam (2), and the diagonal brace (10) is provided with a limiting nesting mechanism; In the limiting nesting mechanism, a rotating shaft (14) is rotatably connected to the middle section of the inner surface of the diagonal brace (10), and a limiting gear (15) is installed on the outer surface of the rotating shaft (14), and a block (16) is snap-connected to the upper side of the outer surface of the limiting gear (15), and a second return spring (17) is elastically connected between the block (16) and the diagonal brace (10); A winding roller (18) is installed on the outer surface of the rotating shaft (14), and a steel wire rope (19) is installed on the outer surface of the winding roller (18), and a limiting roller (20) is attached to the outer surface of the steel wire rope (19), a second telescopic buckle (21) is installed at the upper end of the outer surface of the steel wire rope (19), and the second telescopic buckle (21) is limited and slid on the inner surface of the diagonal brace (10), and a second compression spring (22) is elastically connected between the second telescopic buckle (21) and the diagonal brace (10).

2. The torsion-resistant prefabricated steel structure for a green building system according to claim 1, characterized in that: The first welding piece (3) and the I-beam (2) form a welded structure, the first welding piece (3) and the threaded rod (4) form a rotating structure, and the threaded rod (4) and the extrusion block (5) form a threaded structure.

3. The torsion-resistant prefabricated steel structure for a green building system according to claim 1, characterized in that: The extrusion block (5) and the extrusion rod (6) form a nested sliding structure, the outer surfaces of the extrusion rod (6) and the limiting rod (7) are embedded and installed, the limiting rod (7) and the first welding piece (3) form a telescopic structure, and the first welding piece (3) and the second connecting piece (8) form a limiting snap structure through the limiting rod (7).

4. A torsion-resistant prefabricated steel structure for a green building system according to claim 1, characterized in that: The first welded part (3) and the first connecting part (301) form a limit nesting structure, and the first connecting part (301) and the second welded part (302) form an embedded structure, and the second welded part (302) and the I-beam (2) form a welded structure.

5. A torsion-resistant prefabricated steel structure for a green building system according to claim 1, characterized in that: The third welded part (9) and the I-beam (2) form a welded structure, and the I-beam (2) and the diagonal brace (10) form a nesting structure, and the diagonal brace (10) and the embedding sleeve (12) form an elastic sliding structure through the first compression spring (11), and at the same time, the embedding sleeve (12) and the I-beam (2) form a limit clamping structure through the first telescopic buckle (13).

6. A torsion-resistant prefabricated steel structure for a green building system according to claim 1, characterized in that: The third welded part (9) and the first clamping part (902) form an elastic telescopic structure through the first return spring (901), and the first clamping part (902) and the support frame (904) form a limit clamping structure through the limiting part (903), and the limiting part (903) and the third welded part (9) form a sliding nesting structure, and at the same time, the support frame (904) is embedded and installed on the outer surface of the limiting part (903).

7. A torsion-resistant prefabricated steel structure for a green building system according to claim 1, characterized in that: The diagonal brace (10) and the limit gear (15) form a rotating structure through the rotating shaft (14), and the limit gear (15) and the diagonal brace (10) form a limit clamping structure through the clamping block (16) and the second return spring (17), and the rotating shaft (14), the limit gear (15) and the winding roller (18) form an integrated structure, and at the same time, the winding roller (18), the steel wire rope (19) and the second telescopic buckle (21) form an integrated structure, and the steel wire rope (19) and the limit roller (20) form a fitting rotating structure, and the second telescopic buckle (21) and the diagonal brace (10) form an elastic telescopic structure through the second compression spring (22), and at the same time, the diagonal brace (10) and the I-beam (2) form a limit clamping structure through the second telescopic buckle (21).

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