A hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure

Abstract

The invention relates to a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure, belonging to the technical field of building structures; the structure comprises a shear wall system, a steel-concrete composite column and an H-shaped steel, wherein the left and right ends of the shear wall system are connected to the outer side of the H-shaped steel by high-strength bolts, the steel-concrete composite column is connected to the inner side of the H-shaped steel by high-strength bolts, and the H-shaped steel connects and fixes the shear wall system and the steel-concrete composite column to form an integral shear wall structure; the shear wall system is composed of a multi-layer isolation structure, and a cavity is formed inside, which can not only effectively reduce the dead weight of the structure, but also has good thermal insulation, sound insulation and fireproof performance; the shear wall structure adopts a corrugated steel plate inside, and the steel plate waveform is a sine wave, so that the bending stiffness of the steel plate in the strong axis direction is increased, component deformation and geometric initial defects are not easily generated, and the overall stiffness and ultimate bearing capacity of the structure are improved; and the lateral force resistance, shock absorption and energy consumption performance of the structure are enhanced, and the hysteresis curve is also fuller.

Description

Technical Field

[0001] The present invention relates to a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure, which belongs to the technical field of building structures. Background Art

[0002] Earthquakes are one of the most serious natural disasters. The collapse of buildings caused by earthquakes poses a huge threat to people's lives and property safety. The maintenance of buildings after the earthquake will also cause a huge waste of manpower, material and financial resources. Therefore, it is necessary to consider the seismic performance of buildings when designing their structures. Steel structures have inherent unique advantages in solving such problems. Steel structures can reduce the deadweight of the structure while improving the bearing capacity and seismic performance of the structure. They are also recyclable and extremely suitable for prefabricated structures.

[0003] A Chinese invention patent with publication number CN113982103A discloses a steel-concrete composite building frame, including a concrete composite beam, a steel tube concrete column, a double steel plate shear wall and a first connecting mechanism; the first connecting mechanism includes a first flat plate, a first box-type corbel, a first perforated plate, a second perforated plate and embedded bolts, the first flat plate is welded to the surface of the steel tube concrete column or the double steel plate shear wall; the first box-type corbel is welded to the surface of the first flat plate, the first perforated plate is welded to the surface of the first box-type corbel, the second perforated plate is welded to the end face of the concrete composite beam, the embedded bolts are pre-installed in the second perforated plate, and the first perforated plate and the second perforated plate are connected by the embedded bolts.

[0004] The main components of the above patents are filled with concrete on both sides or inside of the steel, which solves the fire prevention problem of the steel components. At the same time, the steel-concrete structure enables the beams and columns in the building to carry greater weight with a smaller cross-sectional size, reducing the self-weight of the building components. However, its shear wall is relatively thin, prone to in-plane buckling, and the hysteresis curve is prone to "pinching", and it produces a loud noise under load. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure, which is composed of a multi-layer isolation structure and forms a cavity inside, which can not only effectively reduce the deadweight of the structure, but also has good thermal insulation, sound insulation and fireproof performance. The shear wall structure of the present invention adopts corrugated steel plates inside, and the waveform of the steel plates is a sine wave, so that the bending stiffness of the steel plates in the strong axis direction is increased, and it is not easy to produce component deformation and geometric initial defects, thereby improving the overall stiffness and ultimate bearing capacity of the structure; and enhancing the structure's lateral force resistance, shock absorption and energy consumption performance, and the hysteresis curve is also fuller.

[0006] The technical solution of the present invention is as follows:

[0007] A hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure comprises a shear wall system, a steel-concrete composite column and an H-shaped steel. The left and right ends of the shear wall system are connected to the outer side of the H-shaped steel by high-strength bolts, the steel-concrete composite column is connected to the inner side of the H-shaped steel by high-strength bolts, and the H-shaped steel connects and fixes the shear wall system and the steel-concrete composite column to form an integral shear wall structure.

[0008] The shear wall system includes a steel plate cavity layer, a thermal insulation and fireproof layer, a concrete protective layer, a corrugated steel plate, an interlayer steel plate and a connecting steel plate. The connecting steel plate is vertically arranged with two parallel pieces to the length direction of the shear wall system. The connecting steel plate is provided with bolt holes for high-strength bolts to pass through. Two interlayer steel plates parallel to each other are vertically welded between the two connecting steel plates. The two interlayer steel plates and the two connecting steel plates are welded to form a steel plate frame. The corrugated steel plate is placed in the steel plate frame. Steel plate, the placement position of the corrugated steel plate is consistent with the length direction of the shear wall system, and the two ends are welded to the connecting steel plates respectively; the spacing between the two interlayer steel plates is equal to the overall spatial thickness of the corrugated steel plates, the crests and troughs of the corrugated steel plates are in close contact with the interlayer steel plates respectively, and the gap between the corrugated steel plates and the interlayer steel plates is the steel plate cavity layer; the outer side of the interlayer steel plate is pasted with a thermal insulation and fireproof layer, and the outer side of the thermal insulation and fireproof layer and the outer side of the connecting steel plate are integrally cast with the concrete protective layer.

[0009] Wherein, the corrugated steel pipe adopts a sinusoidal waveform, and the interlayer steel plate adopts low yield strength steel.

[0010] Wherein, the material of the thermal insulation and fireproof layer is rock wool composite board.

[0011] The steel-concrete composite column comprises an outer layer of concrete, a square steel tube and an inner layer of concrete. The square steel tube is provided with bolt holes for high-strength bolts to pass through. The inner layer of concrete is poured inside the square steel tube, and the outer layer of concrete is poured outside the square steel tube.

[0012] Among them, the H-shaped steel includes an outer wing plate of the steel, an inner wing plate of the steel and a web plate of the steel. The outer wing plate of the steel is fixed to the outer surface of the connecting steel plate by high-strength bolts, and the inner wing plate of the steel is fixed to the outer surface of the square steel tube by high-strength bolts; the web plate of the steel is vertically welded between the outer wing plate of the steel and the inner wing plate of the steel.

[0013] The present invention has the following beneficial effects:

[0014] 1. The present invention discloses a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure, wherein the shear wall structure includes a multi-layer isolation structure and forms an internal cavity, which not only reduces the deadweight of the structure, but also has good thermal insulation, sound insulation and fire prevention properties.

[0015] 2. The present invention provides a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure, which uses corrugated steel plates with sinusoidal waveforms inside, so as to increase the bending stiffness of the steel plates in the strong axis direction, reduce the buckling deformation of components under load, and improve the overall stiffness and ultimate bearing capacity of the structure; the hysteresis curve is fuller, and the seismic energy absorption performance of the structure is enhanced.

[0016] 3. The hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure of the present invention has the architectural characteristics of economical steel consumption, flexible layout, small space occupation, and easy coordination with the surrounding wall.

[0017] 4. The hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure of the present invention is easy to process and assemble, and has construction characteristics suitable for modularization, standardization, factory production and information development of buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structure diagram of a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure of the present invention;

[0019] Figure 2 It is a detailed structural schematic diagram of a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection of the overall frame system of a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the overall three-dimensional structure of a hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure of the present invention.

[0022] The reference numerals in the figure represent:

[0023] 1- shear wall system, 2- steel-concrete composite column, 3- steel plate cavity layer, 4- thermal insulation and fireproof layer, 5- concrete protective layer, 6- corrugated steel plate, 7- interlayer steel plate, 8- connecting steel plate, 9- column outer layer concrete, 10- square steel pipe, 11- column inner layer concrete, 12- H-shaped steel, 13- steel outer wing plate, 14- steel inner wing plate, 15- steel web plate, 16- high-strength bolts. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] See also Figure 1-Figure 4A hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure includes a shear wall system 1, a steel-concrete composite column 2 and an H-shaped steel 12. The left and right ends of the shear wall system 1 are connected to the outer side of the H-shaped steel 12 through high-strength bolts 16, and the steel-concrete composite column 2 is connected to the inner side of the H-shaped steel 12 through high-strength bolts 16. The H-shaped steel 12 connects and fixes the shear wall system 1 and the steel-concrete composite column 2 to form an integral shear wall structure.

[0026] Specifically, the shear wall system 1 and the steel-concrete composite column 2 both use a steel-concrete composite structure, which can fully utilize the compressive properties of concrete while fully utilizing the good tensile properties of steel. The two coordinate with each other to improve the ultimate bearing capacity of the structure and enhance the fire resistance of the structure.

[0027] Furthermore, the shear wall system 1 includes a steel plate cavity layer 3, a thermal insulation and fireproof layer 4, a concrete protective layer 5, a corrugated steel plate 6, an interlayer steel plate 7 and a connecting steel plate 8. The connecting steel plate 8 is arranged perpendicular to the length direction of the shear wall system 1 and is parallel to each other. The connecting steel plate 8 is provided with bolt holes for high-strength bolts 16 to pass through. Two interlayer steel plates 7 parallel to each other are vertically welded between the two connecting steel plates 8. The two interlayer steel plates 7 and the two connecting steel plates 8 are welded to form a steel plate frame. The corrugated steel plate 6 is placed in the steel plate frame. The corrugated steel plate 6 is placed in a position consistent with the length direction of the shear wall system 1, and its two ends are respectively welded to the connecting steel plate 8; the spacing between the two interlayer steel plates 7 is equal to the overall spatial thickness of the corrugated steel plate 6, the crests and troughs of the corrugated steel plate 6 are respectively in close contact with the interlayer steel plate 7, and the gap between the corrugated steel plate 6 and the interlayer steel plate 7 is the steel plate cavity layer 3; the outer side of the interlayer steel plate 7 is pasted with a thermal insulation and fireproof layer 4, and the outer side of the thermal insulation and fireproof layer 4 and the outer side of the connecting steel plate 8 are integrally cast with the concrete protective layer 5.

[0028] Specifically, a corrugated steel plate 6 is placed in the hollow part surrounded by the interlayer steel plate 7 and the connecting steel plate 8 to form a steel plate cavity layer 3, which not only effectively reduces the dead weight of the structure, but also has good thermal insulation, sound insulation and fire prevention properties. Finally, a concrete protective layer 5 is formed by pouring concrete to connect the structure as a whole and prevent serious corrosion of the internal steel.

[0029] Furthermore, the corrugated steel pipe 6 adopts a sinusoidal waveform, and the interlayer steel plate 7 adopts low yield strength steel; the material of the thermal insulation and fireproof layer 4 is a rock wool composite board.

[0030] Specifically, the corrugated steel plate 6 has its own in-plane bends, and the bending stiffness in the strong axis direction is enhanced, which effectively avoids the buckling instability of the steel plate when loaded and improves the overall stiffness of the structure; the hysteresis curves of the corrugated steel plate 6 and the interlayer steel plate 7 are full, and the seismic energy absorption performance is better; the rock wool composite board material has excellent fire resistance, good thermal insulation, and significant sound absorption effect.

[0031] Furthermore, the steel-concrete composite column 2 includes an outer layer of concrete 9, a square steel tube 10 and an inner layer of column concrete 11. The square steel tube 10 is provided with bolt holes for high-strength bolts 16 to pass through. The inner layer of column concrete 11 is poured inside the square steel tube 10, and the outer layer of concrete 9 is poured outside the square steel tube 10.

[0032] Specifically, the steel-concrete composite column 2 adopts a steel-concrete composite design of inner and outer double layers of concrete and a middle square steel tube 10 on the basis of ordinary steel tube concrete, which enhances the overall stiffness and seismic performance of the structural column; it can also reduce the size of the structural column and save space.

[0033] Furthermore, the H-shaped steel 12 includes an outer wing plate 13, an inner wing plate 14 and a web plate 15. The outer wing plate 13 is fixed to the outer surface of the connecting steel plate 8 by high-strength bolts 16, and the inner wing plate 14 is fixed to the outer surface of the square steel tube 10 by high-strength bolts 16; the web plate 15 is vertically welded between the outer wing plate 13 and the inner wing plate 14.

[0034] Specifically, the H-shaped steel 12 has good elastic buckling performance, which can improve the overall stiffness and seismic performance of the structure to a certain extent; and the use of the H-shaped steel 12 to connect each of the shear wall systems 1 and the steel-concrete composite columns 2 can form an overall frame system of the structure, making the structure more stable after integration.

[0035] Working principle of the present invention:

[0036] During normal use, the shear wall system 1 between the two steel-concrete composite columns 2 in the building structure plays the role of isolating the space on both sides and resisting the lateral force. Due to the isolation of the multi-layer composite structure, including the steel plate cavity layer 3, the interlayer steel plate 7, the thermal insulation and fireproof layer 4, and the concrete protective layer 5, it not only effectively reduces the dead weight of the structure, but also has good thermal insulation, sound insulation and fireproof performance; the overall structure has high rigidity and can effectively resist vertical loads; and the corrugated steel plate 6 is used inside the shear wall system 1. The lateral bearing capacity and elastic buckling performance of the corrugated steel plate 6 are excellent, and can effectively resist and transmit the structural lateral force.

[0037] The present invention uses a large amount of steel, and the overall seismic performance of the structure is significantly improved. When an earthquake occurs, the square steel tubes 10 and H-shaped steels 12 in the steel-concrete composite columns 2 can provide good ductility and meet the displacement requirements of the structural frame under a vibrating state; the corrugated steel plates 6 and interlayer steel plates 7 in the shear wall system 1 can produce large deformations along the length direction of the shear wall system 1 under the action of an earthquake, and rely on their own deformation to achieve a shock-absorbing and energy-consuming effect. The hysteresis curves of the two are full, which can effectively enhance the seismic performance of the shear wall system 1.

[0038] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure, Features: It comprises a shear wall system (1), a steel-concrete composite column (2) and an H-shaped steel (12), wherein the left and right ends of the shear wall system (1) are connected to the outer side of the H-shaped steel (12) via high-strength bolts (16), the steel-concrete composite column (2) is connected to the inner side of the H-shaped steel (12) via high-strength bolts (16), and the H-shaped steel (12) connects and fixes the shear wall system (1) and the steel-concrete composite column (2) to form an integral shear wall structure; The shear wall system (1) comprises a steel plate cavity layer (3), a thermal insulation and fireproof layer (4), a concrete protective layer (5), a corrugated steel plate (6), an interlayer steel plate (7) and a connecting steel plate (8); two mutually parallel connecting steel plates (8) are arranged perpendicular to the length direction of the shear wall system (1); bolt holes for high-strength bolts (16) to pass through are provided on the connecting steel plates (8); two mutually parallel interlayer steel plates (7) are vertically welded between the two connecting steel plates (8); the two interlayer steel plates (7) and the two connecting steel plates (8) are welded to form a steel plate frame; the corrugated steel plates (6) are placed in the steel plate frame. 6), the placement position of the corrugated steel plate (6) is consistent with the length direction of the shear wall system (1), and the two ends are respectively welded to the connecting steel plate (8); the spacing between the two interlayer steel plates (7) is equal to the overall spatial thickness of the corrugated steel plate (6), the wave crests and wave troughs of the corrugated steel plate (6) are respectively in close contact with the interlayer steel plate (7), and the gap between the corrugated steel plate (6) and the interlayer steel plate (7) is the steel plate cavity layer (3); the outer side of the interlayer steel plate (7) is adhered with a thermal insulation and fireproof layer (4), and the outer side of the thermal insulation and fireproof layer (4) and the outer side of the connecting steel plate (8) are integrally cast with the concrete protective layer (5); The corrugated steel plate (6) adopts a sinusoidal waveform, and the interlayer steel plate (7) adopts low yield strength steel; The steel-concrete composite column (2) comprises an outer layer of concrete (9), a square steel tube (10) and a column inner layer of concrete (11); the square steel tube (10) is provided with bolt holes for high-strength bolts (16) to pass through; the column inner layer of concrete (11) is poured inside the square steel tube (10), and the outer layer of concrete (9) is poured outside the square steel tube (10).

2. A hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure as claimed in claim 1, Features: The material of the thermal insulation and fireproof layer (4) is a rock wool composite board.

3. A hollow multi-layer steel-concrete composite corrugated steel plate shear wall structure as claimed in claim 1, Features: The H-shaped steel (12) comprises a steel outer wing plate (13), a steel inner wing plate (14) and a steel web plate (15); the steel outer wing plate (13) is fixed to the outer surface of the connecting steel plate (8) by means of high-strength bolts (16); the steel inner wing plate (14) is fixed to the outer surface of the square steel tube (10) by means of high-strength bolts (16); and the steel web plate (15) is vertically welded between the steel outer wing plate (13) and the steel inner wing plate (14).

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