A corrugated steel plate buffer energy dissipation type multiple damping steel frame structure

Abstract

The present invention relates to a corrugated steel plate buffer energy dissipation multi-damping steel frame structure, belonging to the technical field of building structures; it includes a steel column system, steel crossbeams and a shear wall system. Two parallel steel column systems are vertically arranged, and the bottom ends are fixed to the foundation through steel column feet. Two parallel steel crossbeams are vertically welded between the two steel column systems. The two steel crossbeams are respectively located at the upper and lower ends of the steel column system. The steel column system and the steel crossbeams form an outer structural frame. The shear wall system is arranged inside the outer structural frame. The upper and lower ends of the shear wall system are fixedly connected to the inner side of the steel crossbeams through a rotational hinge support system, and the left and right ends are fixedly connected to the inner side of the steel column system through a damper structure. A steel corbel is arranged at the connection between the inner side of the steel crossbeam and the steel column system. The horizontal section of the steel corbel is fixed to the inner side of the steel crossbeam, and the vertical section is fixed to the inner side of the steel column system.

Description

Technical Field

[0001] The present invention relates to a corrugated steel plate buffer energy dissipation multi-damping steel frame structure, belonging to the technical field of building structures. Background Art

[0002] Earthquakes are natural disasters with powerful destructive forces. Earthquakes not only cause sudden damages such as the collapse of structures, landslides, and road fractures through direct hazards, but also bring huge social and economic losses due to indirect hazards such as social chaos, casualties, production stagnation, and traffic disorders.

[0003] Steel structures have the advantages of high strength, good isotropy in all directions, light self-weight, good seismic performance, simple fabrication, and batch production. Therefore, steel structures are highly applicable to buildings with seismic design requirements.

[0004] At present, the seismic effect of the steel plate shear wall frame structure widely used is only mediocre. The interior mainly uses flat steel plates with relatively thin thicknesses, mainly for resisting the lateral force of the structure. However, its stability is poor, and local distortion and buckling are inevitable under seismic action. The hysteresis curve is not full enough, and the noise during operation is huge.

[0005] Therefore, it is necessary to design and develop a new type of frame building structure that can not only reduce the self-weight of the structure, but also meet the requirements of structural stiffness, stability, and seismic performance, while being convenient for construction and detachable for maintenance. Summary of the Invention

[0006] In order to solve the above problems existing in the prior art, the present invention provides a corrugated steel plate buffer energy dissipation multi-damping steel frame structure. Under seismic action, the corrugated steel plate, the low yield strength steel plate, and multiple damper structures act together to buffer and dissipate seismic energy; convert the rigid deformation between the shear wall and the frame structure into the flexible deformation inside the shear wall structure itself, and transfer the energy to the inside of the shear wall; reduce the deformation of the main structure and also reduce the sway amplitude of the building frame; reduce the damage of the earthquake to the frame structure and also reduce the damage to the shear wall itself.

[0007] The technical solution of the present invention is as follows:

[0008] A corrugated steel plate buffer energy dissipation type multi-damping steel frame structure, comprising a steel column system, steel crossbeams and a shear wall system. The steel column system is vertically provided with two parallel ones, and the bottom end is fixed to the foundation through steel column feet; two parallel steel crossbeams are vertically welded between the two steel column systems, and the two steel crossbeams are respectively located at the upper and lower ends of the steel column system. The steel column system and the steel crossbeams form an outer structural frame, and the shear wall system is arranged inside the outer structural frame. The upper and lower ends of the shear wall system are fixedly connected to the inner side of the steel crossbeam through a rotating hinge support system, and the left and right ends are fixedly connected to the inner side of the steel column system through a damper structure; a steel corbel is arranged at the connection between the inner side of the steel crossbeam and the steel column system, the horizontal section of the steel corbel is fixed to the inner side of the steel crossbeam, and the vertical section is fixed to the inner side of the steel column system.

[0009] Among them, the steel column system includes a square steel pipe and a cross-shaped steel, and the cross-shaped steel is welded on the inner surface of the square steel pipe.

[0010] Among them, the steel crossbeam includes an outer wing plate of the steel crossbeam, a web plate of the steel crossbeam, an inner wing plate of the steel crossbeam and stiffeners. The outer wing plate of the steel crossbeam and the inner wing plate of the steel crossbeam are arranged in parallel and have the same length. The web plate of the steel crossbeam is vertically and equally welded between the two. The left and right ends of the outer wing plate of the steel crossbeam, the web plate of the steel crossbeam and the inner wing plate of the steel crossbeam are respectively welded to the inner wall of the square steel pipe; a number of the stiffeners are arranged between the outer wing plate of the steel crossbeam, the web plate of the steel crossbeam and the inner wing plate of the steel crossbeam, and each stiffener is arranged along the length direction of the steel crossbeam.

[0011] Among them, the shear wall system includes corrugated steel plates, vertical steel plates, inclined rib plates and steel strips. The vertical steel plates are welded to the left and right ends of the corrugated steel plates, and inclined rib plates are provided at the welding joints between the corrugated steel plates and the vertical steel plates. The inclined rib plates are perpendicular to both the corrugated steel plates and the vertical steel plates; the steel strips are welded to the surface of the corrugated steel plates, and pin heads are formed by opening holes at the upper and lower ends. A number of the steel strips are provided, and each steel strip is arranged at equal intervals along the length direction of the shear wall system.

[0012] Among them, the steel column foot includes a steel column foot inclined plate, a steel column foot bottom plate and steel column foot bolts. The steel column foot bottom plate is welded to the bottom end of the square steel pipe; the steel column foot inclined plates are welded to the middle parts around the bottom of the square steel pipe. The horizontal sections of the steel column foot inclined plates are fixed to the steel column foot bottom plate, and the vertical sections are fixed to the square steel pipe; the steel column foot bottom plate is fixed to the foundation through the steel column foot bolts.

[0013] Among them, the so-called steel corbel includes a steel corbel horizontal plate, a steel corbel vertical plate, and a steel corbel inclined web plate. The steel corbel horizontal plate is connected to the inner flange of the steel cross beam through steel corbel bolts, and the steel corbel vertical plate is fixed to the square steel tube through steel corbel bolts; the steel corbel horizontal plate and the steel corbel vertical plate are welded and perpendicular to each other, and the steel corbel inclined web plate is welded and fixed between the two.

[0014] Among them, the damper structure includes a damper main body, a damper pin head, a first rotating hinge support, and a damper backing plate. The damper pin heads are arranged at both ends of the damper main body. A number of damper backing plates are correspondingly connected to the surfaces of the square steel tube and the vertical steel plate through damper backing plate bolts. The first rotating hinge supports are welded to each of the damper backing plates, and the damper pin heads at both ends of the damper main body are respectively inserted into the corresponding first rotating hinge supports.

[0015] Among them, the rotating hinge support system includes a second rotating hinge support, a support steel backing plate, and support steel backing plate bolts. A number of the support steel backing plates are correspondingly connected to the inner surface of the inner flange of the steel cross beam through the support steel backing plate bolts. Each of the support steel backing plates is arranged and welded with the second rotating hinge support; the ends of the upper and lower ends of the steel strip are inserted into the second rotating hinge support and are hinged to the second rotating hinge support.

[0016] Among them, the installation positions of the steel strip and the rotating hinge support system are on the same vertical line as the stiffener.

[0017] Among them, the corrugated steel plate uses trapezoidal corrugations, the steel strip uses low yield strength steel, and the damper main body uses a viscous damper.

[0018] The present invention has the following beneficial effects:

[0019] 1. The corrugated steel plate buffer energy dissipation type multiple damping steel frame structure of the present invention can effectively consume seismic energy, reduce the damage of the earthquake to the building structure, and also reduce the damage to the frame system and the shear wall; under the action of the earthquake, the corrugated steel plate, the low yield strength steel plate, and multiple damper structures jointly buffer, form a reverse resonance with the main structure, and dissipate more energy.

[0020] 2. The corrugated steel plate buffer energy dissipation type multiple damping steel frame structure of the present invention can effectively limit the position within the frame plane, reduce the deformation of the structure, and also reduce the sway amplitude of the building frame, preventing the structure from collapsing; while reducing the seismic damage of the frame structure, it also reduces the self-damage of the shear wall damping device.

[0021] 3. The corrugated steel plate buffer energy dissipation type multiple damping steel frame structure of the present invention is energy-saving in materials, simple in structure, and can be mass-produced in factories; it is convenient for construction, easy to replace and use, and can be disassembled and repaired. Description of the Drawings

[0022] Figure 1 This is a schematic elevation view of a corrugated steel plate buffer energy dissipation multi - damping steel frame structure of the present invention;

[0023] Figure 2 is Figure 1 a schematic A - A sectional view of a corrugated steel plate buffer energy dissipation multi - damping steel frame structure of the present invention in

[0024] Figure 3 a schematic overall three - dimensional structure view of a corrugated steel plate buffer energy dissipation multi - damping steel frame structure of the present invention;

[0025] Figure 4 a schematic structure view of a steel bracket of a corrugated steel plate buffer energy dissipation multi - damping steel frame structure of the present invention;

[0026] Figure 5 a schematic structure view of a damper of a corrugated steel plate buffer energy dissipation multi - damping steel frame structure of the present invention;

[0027] Figure 6 a schematic structure view of a rotational hinge support system of a corrugated steel plate buffer energy dissipation multi - damping steel frame structure of the present invention.

[0028] In the figure, the reference numerals are as follows:

[0029] 1 - steel column system, 2 - steel cross - beam, 3 - shear wall system, 4 - steel column base, 5 - square steel tube, 6 - cross - shaped steel, 7 - outer flange of steel cross - beam, 8 - web of steel cross - beam, 9 - inner flange of steel cross - beam, 10 - stiffening rib, 11 - corrugated steel plate, 12 - vertical steel plate, 13 - inclined rib plate, 14 - steel strip, 15 - inclined plate of steel column base, 16 - base plate of steel column base, 17 - bolts of steel column base, 18 - steel bracket, 19 - horizontal plate of steel bracket, 20 - vertical plate of steel bracket, 21 - inclined web of steel bracket, 22 - bolts of steel bracket, 23 - damper structure, 24 - damper body, 25 - pin head of damper, 26 - first rotational hinge support, 27 - damper backing plate, 28 - bolts of damper backing plate, 29 - rotational hinge support system, 30 - second rotational hinge support, 31 - steel backing plate of support, 32 - bolts of steel backing plate of support. Detailed Description of the Invention

[0030] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0031] Refer to Figures 1-6, a corrugated steel plate buffer energy dissipation type multi - damping steel frame structure includes a steel column system 1, steel cross - beams 2 and a shear wall system 3. The steel column system 1 has two vertically - arranged parallel members, and the bottom ends are fixed to the foundation through steel column feet 4. Two mutually - parallel steel cross - beams 2 are perpendicularly welded between the two steel column systems 1. The two steel cross - beams 2 are respectively located at the upper and lower ends of the steel column system 1. The steel column system 1 and the steel cross - beams 2 form an outer structural frame. The shear wall system 3 is arranged inside the structural frame. The upper and lower ends of the shear wall system 3 are fixedly connected to the inner sides of the steel cross - beams 2 through a rotational hinge support system 29, and the left and right ends are fixedly connected to the inner sides of the steel column system 1 through a damper structure 23. At the connection between the inner side of the steel cross - beam 2 and the steel column system 1, a steel bracket 18 is provided. The horizontal section of the steel bracket 18 is fixed to the inner side of the steel cross - beam 2, and the vertical section is fixed to the inner side of the steel column system 1. The overall structure is divided into layers inside and outside and is connected by bolts, which can not only effectively isolate vibration and dissipate energy, but also facilitate disassembly, maintenance and replacement.

[0032] As Figure 1 , Figure 2 , Figure 3 shown, the steel column system 1 includes a square steel tube 5 and a cross - shaped steel 6. The cross - shaped steel 6 is welded to the inner surface of the square steel tube 5. The outer square steel tube 5 and the inner - welded cross - shaped steel 6 for stiffening can effectively improve the ultimate bearing capacity and stability of the steel column system 1, and avoid the distortion and buckling of the steel structure.

[0033] Furthermore, the steel cross - beam 2 includes a steel cross - beam outer flange 7, a steel cross - beam web 8, a steel cross - beam inner flange 9 and stiffeners 10. The steel cross - beam outer flange 7 and the steel cross - beam inner flange 9 are arranged in parallel and have the same length. The steel cross - beam web 8 is vertically and equally - long welded between them. The left and right ends of the steel cross - beam outer flange 7, the steel cross - beam web 8 and the steel cross - beam inner flange 9 are respectively welded to the inner wall of the square steel tube 5. A number of stiffeners 10 are arranged between the steel cross - beam outer flange 7, the steel cross - beam web 8 and the steel cross - beam inner flange 9. Each stiffener 10 is arranged along the length direction of the steel cross - beam 2. The stiffeners 10 connect and fix the steel cross - beam outer flange 7, the steel cross - beam web 8 and the steel cross - beam inner flange 9, improving the stability and torsional resistance of the steel cross - beam 2.

[0034] Furthermore, the shear wall system 3 includes corrugated steel plates 11, vertical steel plates 12, inclined rib plates 13 and steel strips 14. The vertical steel plates 12 are welded to the left and right ends of the corrugated steel plates 11. Inclined rib plates 13 are provided at the welding joints of the corrugated steel plates 11 and the vertical steel plates 12, and the inclined rib plates 13 are perpendicular to both the corrugated steel plates 11 and the vertical steel plates 12. The steel strips 14 are welded to the surface of the corrugated steel plates 11, and pin heads are formed by punching holes at the upper and lower ends. A number of steel strips 14 are provided, and the steel strips 14 are arranged at equal intervals along the length direction of the shear wall system 3. The corrugated steel plates 11 can effectively limit the displacement of the frame structure and prevent the structure from collapsing.

[0035] Furthermore, the steel column base 4 includes steel column base inclined plates 15, steel column base plates 16 and steel column base bolts 17. The steel column base plates 16 are welded to the bottom ends of the square steel tubes 5. The steel column base inclined plates 15 are welded to the middle parts around the bottom of the square steel tubes 5. The horizontal sections of the steel column base inclined plates 15 are fixed to the steel column base plates 16, and the vertical sections are fixed to the square steel tubes 5. The steel column base plates 16 are fixed to the foundation through the steel column base bolts 17.

[0036] As Figure 4 shown, the steel bracket 18 includes a steel bracket horizontal plate 19, a steel bracket vertical plate 20 and a steel bracket inclined web plate 21. The steel bracket horizontal plate 19 is connected to the inner flange 9 of the steel cross beam through steel bracket bolts 22, and the steel bracket vertical plate 20 is fixed to the square steel tube through the steel bracket bolts 22. The steel bracket horizontal plate 19 and the steel bracket vertical plate 20 are welded and perpendicular to each other, and the steel bracket inclined web plate 21 is welded and fixed between the two. The steel bracket 18 can effectively fix the positions of the steel column system 1 and the steel cross beam 2, and improve the overall stiffness and ultimate bearing capacity of the structure.

[0037] As Figure 5 shown, the damper structure 23 includes a damper body 24, damper pin heads 25, first rotating hinge supports 26 and damper pads 27. The damper pin heads 25 are provided at both ends of the damper body 24. A number of damper pads 27 are correspondingly connected to the surfaces of the square steel tubes 5 and the vertical steel plates 12 through damper pad bolts 28. The first rotating hinge supports 26 are welded to each of the damper pads 27, and the damper pin heads 25 at both ends of the damper body 24 are respectively inserted into the corresponding first rotating hinge supports 26. Using multiple dampers further limits the position and reduces vibration and energy consumption.

[0038] As Figure 6As shown in the figure, the rotating hinge support system 29 includes a second rotating hinge support 30, a support steel backing plate 31, and support steel backing plate bolts 32. A plurality of the support steel backing plates 31 are correspondingly connected to the inner surface of the inner flange 9 of the steel cross beam through the support steel backing plate bolts 32. Each of the support steel backing plates 31 is arranged and welded with the second rotating hinge support 30. The ends of the upper and lower ends of the steel strip 14 are inserted into the second rotating hinge support 30 and are hinged to the second rotating hinge support 30.

[0039] Furthermore, the installation positions of the steel strip 14 and the rotating hinge support system 29 are on the same vertical line as the stiffening rib 10, which can effectively improve the overall stability of the steel cross beam 2 and the shear wall system 3 and avoid buckling or instability of the structure.

[0040] As Figure 3 shown in the figure, the corrugated steel plate 11 adopts trapezoidal corrugations, the steel strip 14 adopts low yield strength steel, and the damper body 24 adopts a viscous damper.

[0041] The corrugated steel plate 11 has an in-plane bend by itself, enhancing the bending resistance of the steel plate and reducing buckling instability. The hysteresis curve of the corrugated steel plate 11 is plump, which is beneficial for seismic buffering and energy dissipation. The steel strip 14 made of low yield strength steel is beneficial for shock absorption and energy dissipation.

[0042] The working principle of the present invention:

[0043] When the main frame structure swings as a whole under the action of an earthquake, the steel frame has a certain elasticity. Due to the combined action of multiple damping devices such as the corrugated steel plate 11, the low yield strength steel strip 14, and multiple damper structures 23 in the internal structure, it forms a reverse resonance with the main structure. Therefore, the seismic energy will dissipate with the operation of the multiple dampers, thereby reducing or even offsetting the deformation of the main structure. Under the action of seismic loads, the steel cross beam 2 generates a horizontal displacement, driving the steel strip 14 to rotate and deform through the rotating hinge support system 29. Since the steel strip 14 is welded to the surface of the corrugated steel plate 11, the corrugated steel plate 11 also rotates and deforms at the same angle. At the same time, the two side steel column systems 1 are also deformed by the earthquake, driving the middle damper structure 23 and the shear wall system 3 to start working. Through the stretching and compression of the hydraulic device in the damper structure 23 and the elongation and compression deformation of the corrugated steel plate 11 itself, the seismic energy is buffered and consumed. In the in-plane direction of the shear wall, the multiple damping devices limit the displacement between the steel column system 1 and the corrugated steel plate 2, reducing the sway amplitude of the building frame and effectively preventing the structure from collapsing. It can not only reduce the damage of the earthquake to the frame structure but also reduce the damage to the damping device itself.

[0044] The above are only embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A corrugated steel plate buffer energy dissipation type multiple damping steel frame structure, characterized in that: It includes a steel column system (1), steel cross beams (2) and a shear wall system (3). Two mutually parallel steel column systems (1) are vertically arranged, and the bottom ends are fixed to the foundation through steel column feet (4). Two mutually parallel steel cross beams (2) are perpendicularly welded between the two steel column systems (1). The two steel cross beams (2) are respectively located at the upper and lower ends of the steel column system (1). The steel column system (1) and the steel cross beams (2) form a structural outer frame. The shear wall system (3) is arranged inside the structural outer frame. The upper and lower ends of the shear wall system (3) are fixedly connected to the inner sides of the steel cross beams (2) through a rotational hinge support system (29), and the left and right ends are fixedly connected to the inner sides of the steel column system (1) through a damper structure (23). At the connection between the inner side of the steel cross beam (2) and the steel column system (1), a steel corbel (18) is provided. The horizontal section of the steel corbel (18) is fixed to the inner side of the steel cross beam (2), and the vertical section is fixed to the inner side of the steel column system (1). The steel column system (1) includes a square steel pipe (5) and a cross-shaped steel (6). The shear wall system (3) includes a corrugated steel plate (11), vertical steel plates (12), inclined rib plates (13) and steel strips (14). The vertical steel plates (12) are welded to the left and right ends of the corrugated steel plate (11). Inclined rib plates (13) are provided at the welding joints between the corrugated steel plate (11) and the vertical steel plates (12). The inclined rib plates (13) are perpendicular to both the corrugated steel plate (11) and the vertical steel plates (12). The steel strips (14) are welded to the surface of the corrugated steel plate (11), and pin heads are formed by punching holes at the upper and lower ends. A number of steel strips (14) are provided, and each of the steel strips (14) is arranged at equal intervals along the length direction of the shear wall system (3). The damper structure (23) includes a damper body (24), damper pin heads (25), a first rotational hinge support (26) and damper backing plates (27). The damper pin heads (25) are provided at both ends of the damper body (24). A number of damper backing plates (27) are correspondingly connected to the surfaces of the square steel pipe (5) and the vertical steel plates (12) through damper backing plate bolts (28). The first rotational hinge supports (26) are welded to each of the damper backing plates (27). The damper pin heads (25) at both ends of the damper body (24) are respectively inserted into the corresponding first rotational hinge supports (26).

2. The corrugated steel plate buffer energy dissipation type multiple damping steel frame structure according to claim 1, characterized in that: The cross-shaped steel (6) is welded to the inner surface of the square steel pipe (5).

3. The corrugated steel plate buffer energy dissipation type multiple damping steel frame structure according to claim 2, characterized in that: The steel cross beam (2) includes a steel cross beam outer flange (7), a steel cross beam web (8), a steel cross beam inner flange (9), and stiffeners (10). The steel cross beam outer flange (7) and the steel cross beam inner flange (9) are arranged in parallel and have the same length. The steel cross beam web (8) is vertically and equally welded between the two. The left and right ends of the steel cross beam outer flange (7), the steel cross beam web (8), and the steel cross beam inner flange (9) are respectively welded to the inner wall of the square steel tube (5). A number of the stiffeners (10) are arranged between the steel cross beam outer flange (7), the steel cross beam web (8), and the steel cross beam inner flange (9), and each of the stiffeners (10) is arranged along the length direction of the steel cross beam (2).

4. A corrugated steel plate buffer energy dissipation type multi-damping steel frame structure according to claim 3, characterized in that: The steel column base (4) includes a steel column base inclined plate (15), a steel column base bottom plate (16), and steel column base bolts (17). The steel column base bottom plate (16) is welded to the bottom end of the square steel tube (5). The steel column base inclined plate (15) is welded to the middle of the four sides at the bottom of the square steel tube (5). The horizontal section of each steel column base inclined plate (15) is fixed to the steel column base bottom plate (16), and the vertical section is fixed to the square steel tube (5). The steel column base bottom plate (16) is fixed to the foundation through the steel column base bolts (17).

5. A corrugated steel plate buffer energy dissipation type multiple damping steel frame structure according to claim 4, characterized in that: The steel corbel (18) includes a steel corbel horizontal plate (19), a steel corbel vertical plate (20), and a steel corbel inclined web (21). The steel corbel horizontal plate (19) is connected to the steel cross beam inner flange (9) through steel corbel bolts (22), and the steel corbel vertical plate (20) is fixed to the square steel tube through steel corbel bolts (22). The steel corbel horizontal plate (19) and the steel corbel vertical plate (20) are welded and perpendicular to each other, and the steel corbel inclined web (21) is welded and fixed between the two.

6. A corrugated steel plate buffer energy dissipation type multiple damping steel frame structure according to claim 5, characterized in that: The rotational hinge support system (29) includes a second rotational hinge support (30), a support steel backing plate (31), and support steel backing plate bolts (32). A number of the support steel backing plates (31) are correspondingly connected to the inner surface of the steel cross beam inner flange (9) through the support steel backing plate bolts (32). Each of the support steel backing plates (31) is arranged and welded with the second rotational hinge support (30). The upper and lower ends of the steel plate strip (14) are inserted into the second rotational hinge support (30) and are hinged to the second rotational hinge support (30).

7. A corrugated steel plate buffer energy dissipation type multiple damping steel frame structure according to claim 6, characterized in that: The installation positions of the steel plate strip (14) and the rotational hinge support system (29) are on the same vertical line as the stiffeners (10).

8. A corrugated steel plate buffer energy dissipation type multiple damping steel frame structure according to claim 7, characterized in that: The corrugated steel plate (11) adopts a trapezoidal corrugation. The steel plate strip (14) adopts a low yield strength steel, and the damper body (24) adopts a viscous damper.

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