Steel structure assembled building and assembly method thereof

Abstract

The present invention discloses a steel structure assembled building and an assembly method thereof, which relates to the technical field of steel structure assembled buildings, including a first right-angle shear wall, a first connecting beam fixedly connected to one side of the first right-angle shear wall, a fourth connecting beam fixedly connected to the other side of the first right-angle shear wall, a load-bearing column fixedly connected to the top of the first right-angle shear wall, a second right-angle shear wall fixedly connected to the top of the load-bearing column, an oblique support plate fixedly connected to the upper surface of the first connecting beam and the upper surface of the fourth connecting beam near both ends, a second connecting beam fixedly connected to one side of the second right-angle shear wall, a third connecting beam fixedly connected to the other side of the second right-angle shear wall, and connecting clamps respectively arranged at both ends of the second right-angle shear wall. The steel structure assembled building and the assembly method thereof disclosed by the present invention have the technical effect of reducing local shear force by using a force cable.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure assembled buildings, and in particular to a steel structure assembled building and an assembly method thereof. Background Art

[0002] Steel structure is a natural prefabricated structure, but not all steel structure buildings are prefabricated buildings, especially those that are not good prefabricated buildings. Steel structure buildings can be considered good prefabricated buildings. The steel structure, enclosure system, equipment and pipeline system and interior system must be harmoniously unified to be considered a prefabricated steel structure building. Compared with prefabricated concrete buildings, prefabricated steel structure buildings have the following advantages: no on-site cast-in-place nodes, faster installation speed, easier to ensure construction quality; steel structure is a ductile material with better earthquake resistance.

[0003] Shear wall, also known as wind-resistant wall, earthquake-resistant wall or structural wall, is a wall in a house or structure that mainly bears horizontal and vertical loads caused by wind loads or earthquakes to prevent structural shear damage. It is divided into plane shear wall and cylindrical shear wall. Plane shear wall is used in reinforced concrete frame structure, lifting plate structure and beamless floor system. If it is subjected to severe vibration, the shear wall will be subjected to huge shear force. The shear wall of general steel structure prefabricated building will have shear force concentrated in local area, causing local fracture of steel structure building, resulting in safety problems of the building, which cannot meet actual needs. Summary of the invention

[0004] The present invention discloses a steel structure assembled building and an assembly method thereof, aiming to solve the technical problem that if subjected to severe vibration, the shear wall is subjected to huge shear force, the shear force of the shear wall of a general steel structure assembled building will be concentrated in a local area, causing the steel structure building to be partially broken, resulting in safety problems of the building.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A steel structure assembled building comprises a first right-angle shear wall, one side of the first right-angle shear wall is fixedly connected to a first connecting beam, the other side of the first right-angle shear wall is fixedly connected to a fourth connecting beam, the top of the first right-angle shear wall is fixedly connected to a load-bearing column, the top of the load-bearing column is fixedly connected to a second right-angle shear wall, the upper surfaces of the first connecting beam and the upper surfaces of the fourth connecting beam are respectively fixedly connected to oblique support plates near both ends, one side of the second right-angle shear wall is fixedly connected to a second connecting beam, the other side of the second right-angle shear wall is fixedly connected to a third connecting beam, both ends of the second right-angle shear wall are respectively provided with connecting clamps, the first right-angle shear wall and the second right-angle shear wall have the same right-angle shape, and the first right-angle shear wall The outer surfaces of the force wall and the second right-angle shear wall are respectively fixedly connected with a plurality of arc-shaped reinforcing ribs, the inner midline position and the outer symmetrical position of the first right-angle shear wall and the second right-angle shear wall are respectively fixedly connected with force fixing blocks, one side of the force fixing block is fixedly connected with a plurality of force steel cables, one end of the force steel cable is fixedly connected with a connecting force bolt, the inner surfaces of the first right-angle shear wall and the second right-angle shear wall are provided with a plurality of force holes, one side of the force fixing block is threadedly connected with a fulcrum fixing bolt, one side of the force fixing block is provided with a through hole, one ends of the plurality of force steel cables are gathered together and fixed inside the through hole on the force fixing block, one end of the force steel cable is wound around the connecting force bolt, and the connecting force bolt is threadedly connected to the force hole.

[0007] By providing a first right-angle shear wall and a second right-angle shear wall, installing a force cable and connecting a force bolt, using multiple force cables and multiple connecting force bolts, and using a fulcrum fixing bolt to threadably connect the force cables to the force fixing block, in the process of fixing the force cables, the multiple force cables are straightened so that there is a certain pre-tightening force inside the force cables. After pouring mortar, when the first right-angle shear wall and the second right-angle shear wall of the building are subjected to shear force, slight deformation will cause the force fixing blocks at both ends to tighten the force cables, so that the shear force received on the first right-angle shear wall and the second right-angle shear wall is evenly dispersed on the surface of the first right-angle shear wall and the second right-angle shear wall, thereby greatly enhancing the shear resistance of the structure of the first right-angle shear wall and the second right-angle shear wall, making the building structure more stable and having a stronger earthquake-resistant effect.

[0008] In a preferred scheme, connecting protruding plates are provided at the edge positions of both ends of the load-bearing column, and a plurality of movable fixing holes are provided on the surface of the connecting protruding plates. A right-angle protruding block and a square protruding block are provided at both ends of the load-bearing column, respectively. The right-angle protruding block is flush with the edge of the square protruding block. A plurality of fixing holes are provided at the top and bottom of the first right-angle shear wall and the second right-angle shear wall, respectively. Fixing bolts are threadedly connected inside the fixing holes, and right-angle grooves are provided at the top and bottom of the first right-angle shear wall and the second right-angle shear wall near the corners, respectively. Square grooves are provided at the top and bottom of the first right-angle shear wall and the second right-angle shear wall near the fixing holes, respectively.

[0009] By providing a right-angle protruding block and a square protruding block, the right-angle protruding block and the square protruding block are respectively inserted into the right-angle slot and the square slot, and a plurality of fixing bolts are used to be installed in the movable fixing holes to connect the load-bearing column, the first right-angle shear wall and the second right-angle shear wall. The surfaces of the square protruding block and the right-angle protruding block are used to bear pressure, and the fixing bolts play a role of fixing the position without being subjected to the main pressure.

[0010] In a preferred solution, a plurality of reinforcing partitions are fixedly connected to the inner walls of the first right-angle shear wall and the second right-angle shear wall, and a plurality of communicating cement holes are opened on the surfaces of the reinforcing partitions.

[0011] By setting up connecting cement holes, cement mortar is prepared and mixed evenly, and poured into the top of the first right-angle shear wall and the second right-angle shear wall respectively. The cement mortar gradually flows downward through the connecting cement holes on the reinforced partition. Due to the high viscosity of the cement mortar, the bubbles in the cement mortar are discharged by a vibration tool.

[0012] In a preferred solution, a plurality of connection holes are respectively provided on both side surfaces of the first right-angle shear wall and the second right-angle shear wall, and the internal threads of the connection holes are connected with multifunctional connection bolts, the force cable is a steel cable, the shape of the right-angle slot is the same as the shape of the right-angle raised block, and the shape of the square slot is the same as the shape of the square raised block.

[0013] By providing multifunctional connecting bolts, the structure is more stable when the cement mortar solidifies. The multifunctional connecting bolts are used to install partitions or indoor ceilings and other panels, which can be used flexibly. The shapes of the right-angle slots and the square slots are not easily deformed, which can achieve a stable effect.

[0014] As can be seen from the above, the steel structure assembled building and the assembly method thereof provided by the present invention have the following technical effects.

[0015] First: by designing the stress cables and connecting stress bolts, when a natural disaster such as an earthquake occurs, the building vibrates violently, and the right angles of the first right-angle shear wall and the second right-angle shear wall are subjected to huge shear force. After slight deformation, the deformed structure will pull the stress cables, and the shear force will be dispersed to the outer surfaces of the first right-angle shear wall and the second right-angle shear wall through the connecting stress bolts. By dispersing the shear load, the structure is made more earthquake-resistant.

[0016] Second: The oblique structure of the oblique support plate utilizes triangular stability to make the building structure more stable. The reinforced protrusions on the oblique support plate increase the structural strength of the oblique support plate. There is space between the two reinforced protrusions, which can be used to install wire harnesses and pipes, and can also protect the wire harnesses and pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a steel structure prefabricated building proposed by the present invention, viewed from the front.

[0018] Figure 2 This is a schematic diagram of the rear view structure of a steel structure prefabricated building proposed by the present invention.

[0019] Figure 3 This is a schematic diagram of the partial structure of a steel structure prefabricated building proposed by the present invention.

[0020] Figure 4 This is a schematic diagram of the internal structure of a steel structure prefabricated building proposed by the present invention.

[0021] Figure 5 A steel structure prefabricated building proposed by the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0022] Figure 6 This is a schematic diagram of the load-bearing column structure of a steel structure prefabricated building proposed by the present invention.

[0023] Figure 7 This is a schematic diagram of the fourth connecting beam structure of a steel structure prefabricated building proposed by the present invention.

[0024] Figure 8 This is a schematic diagram of the arc-shaped reinforcement rib structure of a steel structure prefabricated building proposed by the present invention.

[0025] In the figure: 1. the first right-angle shear wall; 2. the first connecting beam; 3. the oblique support plate; 4. the second connecting beam; 5. the second right-angle shear wall; 6. the third connecting beam; 7. the load-bearing column; 8. the fourth connecting beam; 9. the arc-shaped reinforcing ribs; 10. the fixing bolts; 11. the right-angle slots; 12. the square slots; 13. the connecting clamps; 14. the focusing steel cables; 15. the connecting focusing bolts; 16. the strengthening partitions; 17. the connecting cement holes; 19. the multifunctional connecting bolts; 20. the focusing fixing blocks; 21. the fulcrum fixing bolts; 22. the right-angle raised blocks; 23. the square raised blocks; 24. the movable fixing holes; 25. the connecting raised plates; 26. the strengthening raised blocks; 27. the pre-installed holes; 28. the weight-reducing structure hollowing out; 29. ​​the connecting slots. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The steel structure prefabricated building and its assembly method disclosed in the present invention are mainly used in the scenario where, if subjected to severe vibration, the shear wall is subjected to huge shear force, the shear wall of the general steel structure prefabricated building will have shear force concentrated in a local area, causing the steel structure building to partially break, resulting in safety problems of the building.

[0028] Reference Figure 1 , Figure 3 . Figure 4 and Figure 5A steel structure assembled building and an assembly method thereof, comprising a first right-angle shear wall 1, a first connecting beam 2 is fixedly connected to one side of the first right-angle shear wall 1, a fourth connecting beam 8 is fixedly connected to the other side of the first right-angle shear wall 1, a load-bearing column 7 is fixedly connected to the top of the first right-angle shear wall 1, a second right-angle shear wall 5 is fixedly connected to the top of the load-bearing column 7, an oblique support plate 3 is fixedly connected to the upper surface of the first connecting beam 2 and the upper surface of the fourth connecting beam 8 near both ends, a second connecting beam 4 is fixedly connected to one side of the second right-angle shear wall 5, a third connecting beam 6 is fixedly connected to the other side of the second right-angle shear wall 5, connecting clamps 13 are respectively provided at both ends of the second right-angle shear wall 5, the first right-angle shear wall 1 and the second right-angle shear wall 5 have the same right-angle shape, and the first right-angle shear wall 1 and the second The outer surfaces of the right-angle shear walls 5 are respectively fixedly connected with a plurality of arc-shaped reinforcing ribs 9, and the inner midline positions and outer symmetrical positions of the first right-angle shear wall 1 and the second right-angle shear wall 5 are respectively fixedly connected with force fixing blocks 20, and one side of the force fixing block 20 is fixedly connected with a plurality of force steel cables 14, and one end of the force steel cable 14 is fixedly connected with a connecting force bolt 15. The inner surfaces of the first right-angle shear wall 1 and the second right-angle shear wall 5 are provided with a plurality of force holes, and one side of the force fixing block 20 is threadedly connected with a fulcrum fixing bolt 21, and one side of the force fixing block 20 is provided with a through hole, and one end of the plurality of force steel cables 14 are gathered together and fixed inside the through hole on the force fixing block 20, and one end of the force steel cable 14 is wound around the connecting force bolt 15, and the connecting force bolt 15 is threadedly connected to the force hole.

[0029] In this embodiment, the steel plates on one side of the first right-angle shear wall 1 and the second right-angle shear wall 5 are reserved for incomplete welding and fixing, which are used to install the force cable 14 and the connecting force bolt 15. A plurality of force cables 14 and a plurality of connecting force bolts 15 are used, one end of the force cable 14 is wound around the connecting force bolt 15, and the connecting force bolt 15 is threadedly connected in the force hole, and the other ends of the plurality of force cables 14 are gathered together and inserted into the through hole on the force fixing block 20, and the fulcrum fixing bolt 21 is threadedly connected to the force fixing block 20 to fix the force cable 14. In the process of fixing the force cable 14, the plurality of force cables 14 are straightened so that there is a certain pre-tightening force inside the force cable 14, and cement is prepared. The mortar is mixed evenly and poured from the top of the first right-angle shear wall 1 and the second right-angle shear wall 5 respectively, and the cement mortar is solidified. The first right-angle shear wall 1 and the second right-angle shear wall 5 are only the key parts of the building shear wall. When the first right-angle shear wall 1 and the second right-angle shear wall 5 of the building are subjected to shear force, slight deformation will cause the force fixing blocks 20 at both ends to tighten the force steel cable 14, so that the shear force received on the first right-angle shear wall 1 and the second right-angle shear wall 5 is evenly dispersed on the surface of the first right-angle shear wall 1 and the second right-angle shear wall 5, which greatly enhances the shear resistance of the structure of the first right-angle shear wall 1 and the second right-angle shear wall 5, making the building structure more stable and having a stronger earthquake-resistant effect.

[0030] Reference Figure 1 , Figure 3 and Figure 8 In a preferred embodiment, a plurality of weight-reducing structural hollows 28 are provided inside the first connecting beam 2, and connecting slots 29 are provided at both ends of the first connecting beam 2. The first connecting beam 2 has the same shape as the second connecting beam 4, the third connecting beam 6 and the fourth connecting beam 8.

[0031] In this embodiment, by connecting the connecting clamp 13 and the connecting slot 29, the first connecting beam 2 and the fourth connecting beam 8 are respectively fixed on both sides of the first right-angle shear wall 1, and the second connecting beam 4 and the third connecting beam 6 are respectively fixed on both sides of the second right-angle shear wall 5, so as to achieve the effect of quick installation.

[0032] Specifically, refer to Figure 1 , Figure 3 and Figure 7 Reinforcement protrusions 26 are respectively provided at the edge positions of both sides of the oblique support plate 3, and a plurality of pre-installation holes 27 are respectively opened on the surfaces of both sides of the oblique support plate 3.

[0033] In this embodiment, bolts are used to fix multiple oblique support plates 3 between the first connecting beam 2 and the second connecting beam 4 and the third connecting beam 6 and the fourth connecting beam 8. The oblique structure of the oblique support plate 3 utilizes triangular stability to make the building structure more stable. The reinforcing protrusions 26 on the oblique support plate 3 increase the structural strength of the oblique support plate 3. Space is left between the two reinforcing protrusions 26, which can be used to install wiring harnesses and pipes, and can also protect the wiring harnesses and pipes.

[0034] Reference Figure 1 , Figure 3 and Figure 6 In a preferred embodiment, connecting protruding plates 25 are provided at the edge positions of both ends of the load-bearing column 7, and a plurality of movable fixing holes 24 are provided on the surface of the connecting protruding plates 25. A right-angle protruding block 22 and a square protruding block 23 are provided at both ends of the load-bearing column 7, respectively. The edges of the right-angle protruding block 22 and the square protruding block 23 are flush, and a plurality of fixing holes are provided at the top and bottom of the first right-angle shear wall 1 and the second right-angle shear wall 5, respectively. Fixing bolts 10 are threadedly connected inside the fixing holes, and right-angle grooves 11 are provided at the top and bottom of the first right-angle shear wall 1 and the second right-angle shear wall 5 near the corners, and square grooves 12 are provided at the top and bottom of the first right-angle shear wall 1 and the second right-angle shear wall 5 near the fixing holes, respectively.

[0035] In this embodiment, a right-angle protruding block 22 and a square protruding block 23 are respectively inserted into the right-angle slot 11 and the square slot 12, and a plurality of fixing bolts 10 are installed in the movable fixing hole 24 to connect the load-bearing column 7, the first right-angle shear wall 1 and the second right-angle shear wall 5. The surfaces of the square protruding block 23 and the right-angle protruding block 22 are used to bear pressure, and the fixing bolts 10 play the role of fixing the position and are not subjected to the main pressure.

[0036] Further, see Figure 1 , Figure 3 and Figure 4 A plurality of reinforcing partitions 16 are fixedly connected to the inner walls of the first right-angle shear wall 1 and the second right-angle shear wall 5 , and a plurality of communicating cement holes 17 are opened on the surface of the reinforcing partitions 16 .

[0037] In this embodiment, cement mortar is prepared and mixed evenly, and poured into the top of the first right-angle shear wall 1 and the second right-angle shear wall 5 respectively. The cement mortar gradually flows downward through the connecting cement holes 17 on the reinforcing partition 16. Due to the high viscosity of the cement mortar, the bubbles in the cement mortar are discharged by a vibration tool.

[0038] Reference Figure 1 , Figure 4 and Figure 6In a preferred embodiment, a plurality of connection holes are respectively provided on the two side surfaces of the first right-angle shear wall 1 and the second right-angle shear wall 5, and the internal threads of the connection holes are connected with multifunctional connection bolts 19, the force cable 14 is a steel cable, the shape of the right-angle slot 11 is the same as the shape of the right-angle raised block 22, and the shape of the square slot 12 is the same as the shape of the square raised block 23.

[0039] In this embodiment, the cement mortar solidifies, so the mechanism is more stable. The function of the multifunctional connecting bolt 19 is to install panels such as partitions or indoor ceilings, which can be used flexibly. The shapes of the right-angle slot 11 and the square slot 12 are not easily deformed, which can achieve a stable effect.

[0040] Working principle: When in use, the steel plates on one side of the first right-angle shear wall 1 and the second right-angle shear wall 5 are reserved for incomplete welding and fixing, which are used to install the force cable 14 and the connecting force bolt 15. Use multiple force cables 14 and multiple connecting force bolts 15, wrap one end of the force cable 14 around the connecting force bolt 15, use the connecting force bolt 15 to be threadedly connected in the force hole, and the other ends of the multiple force cables 14 are gathered together and inserted into the through hole on the force fixing block 20. Use the fulcrum fixing bolt 21 to be threadedly connected to the force fixing block 20 to fix the force cable 14. In the process of fixing the force cable 14, the multiple force cables 14 are straightened so that there is a certain pre-tightening force inside the force cable 14, and the water is prepared. The mud mortar is stirred evenly and poured in from the top of the first right-angle shear wall 1 and the second right-angle shear wall 5 respectively. The cement mortar gradually flows downward through the connecting cement holes 17 on the reinforcing partition 16. Due to the high viscosity of the cement mortar, the bubbles in the cement mortar are discharged by the vibration tool. When the cement mortar solidifies, the first right-angle shear wall 1 and the second right-angle shear wall 5 are only the key parts of the building shear wall. When the first right-angle shear wall 1 and the second right-angle shear wall 5 of the building are subjected to shear force, slight deformation will cause the force fixing blocks 20 at both ends to tighten the force steel cable 14, so that the shear force received on the first right-angle shear wall 1 and the second right-angle shear wall 5 is evenly dispersed to the first right-angle shear wall 1 and the second right-angle shear wall 5. On the surface of the wall 5, the shear resistance of the structure of the first right-angle shear wall 1 and the second right-angle shear wall 5 is greatly strengthened, making the building structure more stable and having a stronger earthquake resistance effect. The first connecting beam 2 and the fourth connecting beam 8 are respectively fixed on both sides of the first right-angle shear wall 1 by connecting the connecting clamp 13 and the connecting slot 29, and the second connecting beam 4 and the third connecting beam 6 are respectively fixed on both sides of the second right-angle shear wall 5. Bolts are used to fix multiple oblique support plates 3 between the first connecting beam 2 and the second connecting beam 4 and the third connecting beam 6 and the fourth connecting beam 8. The oblique structure of the oblique support plate 3 uses triangular stability to make the building structure more stable. The reinforcing protrusions 26 on the oblique support plate 3 increase the oblique support plate 3. Structural strength, there is space between the two reinforcing protrusions 26, which can be used to install wiring harnesses and pipes, and can also protect the wiring harnesses and pipes. The right-angle protrusion block 22 and the square protrusion block 23 are respectively inserted into the right-angle slot 11 and the square slot 12, and multiple fixing bolts 10 are installed in the movable fixing hole 24 to connect the load-bearing column 7, the first right-angle shear wall 1 and the second right-angle shear wall 5. The surfaces of the square protrusion block 23 and the right-angle protrusion block 22 are used to bear pressure, and the fixing bolts 10 play a role of fixing the position without being subjected to the main pressure. Therefore, the mechanism is more stable, and the function of the multifunctional connecting bolt 19 is to be used for installing partitions or indoor ceilings and other panels, which has the effect of flexible use.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel structure prefabricated building, comprising a first right-angle shear wall (1), characterized in that: One side of the first right-angle shear wall (1) is fixedly connected to a first connection beam (2), the other side of the first right-angle shear wall (1) is fixedly connected to a fourth connection beam (8), the top of the first right-angle shear wall (1) is fixedly connected to a load-bearing column (7), the top of the load-bearing column (7) is fixedly connected to a second right-angle shear wall (5), the upper surfaces of the first connection beam (2) and the upper surfaces of the fourth connection beam (8) are respectively fixedly connected to oblique support plates (3) at positions near both ends, one side of the second right-angle shear wall (5) is fixedly connected to a second connection beam (4), and the other side of the second right-angle shear wall (5) is fixedly connected to a third connection beam (6); Both ends of the second right-angle shear wall (5) are respectively provided with connecting clamps (13); the first right-angle shear wall (1) and the second right-angle shear wall (5) have the same right-angle shape; and the outer surfaces of the first right-angle shear wall (1) and the second right-angle shear wall (5) are respectively fixedly connected with a plurality of arc-shaped reinforcing ribs (9); A force fixing block (20) is fixedly connected to the inner midline position and the outer symmetrical position of the first right-angle shear wall (1) and the second right-angle shear wall (5), respectively; a plurality of force steel cables (14) are fixedly connected to one side of the force fixing block (20); one end of the force steel cable (14) is fixedly connected to a connecting force bolt (15); a plurality of force holes are provided on the inner surface of the first right-angle shear wall (1) and the second right-angle shear wall (5); a fulcrum fixing bolt (21) is threadedly connected to one side of the force fixing block (20); a through hole is provided on one side of the force fixing block (20); one end of the plurality of force steel cables (14) are gathered together and fixed inside the through hole on the force fixing block (20); one end of the force steel cable (14) is wound around the connecting force bolt (15), and the connecting force bolt (15) is threadedly connected to the force hole.

2. A steel structure prefabricated building according to claim 1, characterized in that: The first connecting beam (2) is provided with a plurality of weight-reducing structural hollows (28) inside, and connecting slots (29) are provided at both ends of the first connecting beam (2), respectively. The first connecting beam (2) has the same shape as the second connecting beam (4), the third connecting beam (6) and the fourth connecting beam (8).

3. A steel structure prefabricated building according to claim 2, characterized in that: Reinforcement protrusions (26) are respectively provided at the edge positions on both sides of the oblique support plate (3), and a plurality of pre-installation holes (27) are respectively provided on the surfaces on both sides of the oblique support plate (3).

4. A steel structure prefabricated building according to claim 3, characterized in that: Connecting protruding plates (25) are provided at the edge positions of both ends of the load-bearing column (7), and a plurality of movable fixing holes (24) are provided on the surface of the connecting protruding plates (25). A right-angled protruding block (22) and a square protruding block (23) are provided at both ends of the load-bearing column (7), and the edges of the right-angled protruding block (22) and the square protruding block (23) are flush with each other. A plurality of fixing holes are provided at the top and bottom of the first right-angled shear wall (1) and the second right-angled shear wall (5), and fixing bolts (10) are respectively threadedly connected to the inside of the fixing holes. Right-angled slots (11) are provided at the top and bottom of the first right-angled shear wall (1) and the second right-angled shear wall (5) near the corners, and square slots (12) are provided at the top and bottom of the first right-angled shear wall (1) and the second right-angled shear wall (5) near the fixing holes.

5. A steel structure prefabricated building according to claim 4, characterized in that: A plurality of reinforcing partitions (16) are fixedly connected to the inner walls of the first right-angle shear wall (1) and the second right-angle shear wall (5), and a plurality of communicating cement holes (17) are provided on the surfaces of the reinforcing partitions (16).

6. A steel structure prefabricated building according to claim 5, characterized in that: A plurality of connection holes are respectively provided on the two side surfaces of the first right-angle shear wall (1) and the second right-angle shear wall (5), and multifunctional connection bolts (19) are connected to the internal threads of the connection holes.

7. A steel structure prefabricated building according to claim 6, characterized in that: The shape of the right-angled slot (11) is the same as that of the right-angled protruding block (22), and the shape of the square slot (12) is the same as that of the square protruding block (23).

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