Anti-seismic buckling-restrained steel plate wall sliding structure for building and construction method thereof

Abstract

The invention provides a building anti-seismic buckling-restrained steel plate wall sliding structure which is characterized by comprising frame beams, a buckling-restrained steel plate wall, an embedded steel column, a force transmission beam and a foaming material filling layer, the frame beams comprise an upper frame beam and a lower frame beam which are horizontally arranged, and the frame beams are fixedly connected with a building; the buckling-restrained steel plate wall is located between the upper frame beam and the lower frame beam, the buckling-restrained steel plate wall comprises two vertically-arranged steel frame columns and a corrugated steel plate connected between the two steel frame columns, the steel frame columns are hollow square columns, and the embedded steel columns comprise vertically-arranged upper embedded steel columns and lower embedded steel columns; the embedded steel columns are welded on the frame beam, the upper embedded steel column and the lower embedded steel column are respectively inserted into the upper end part and the lower end part of the steel frame column and are in sliding connection with the steel frame column, the force transmission beams are respectively arranged at the upper edge and the lower edge of the corrugated steel plate, the force transmission beams are connected with the corrugated steel plate, and the foaming material filling layer is filled between the force transmission beams and the frame beam.

Description

Technical Field

[0001] The present invention relates to the technical field of building earthquake resistance, and particularly relates to a sliding structure of a buckling-restrained steel plate wall for building earthquake resistance and a construction method thereof. Background Art

[0002] Due to its excellent energy dissipation capacity and lateral force resistance performance, the buckling-restrained steel plate wall has been widely used in the design of building earthquake-resistant structures. However, in the prior art, there is still a problem that the vertical load transfer cannot be blocked in the joint design of the buckling-restrained steel plate wall. This is because when the steel plate wall is rigidly connected to the surrounding steel frame columns, it is easy to cause the steel plate wall and the surrounding steel frame columns to jointly bear the vertical load. Especially under the action of earthquake or load, this vertical stress concentration may cause changes in stiffness, resulting in deviations and potential hazards in the calculation between the structural design and analysis results, and affecting the designer's grasp of the seismic performance of the structure. Summary of the Invention

[0003] In order to solve the above problems, the present invention aims to provide a sliding structure of a buckling-restrained steel plate wall for building earthquake resistance and a construction method thereof.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a sliding structure of a buckling-restrained steel plate wall for building earthquake resistance, which is characterized by including: a frame beam, a buckling-restrained steel plate wall, an embedded steel column, a force transfer beam, and a foaming material filling layer. Among them, the frame beam includes two upper and lower horizontally arranged frame beams, the frame beam is fixedly connected to the building, the buckling-restrained steel plate wall is located between the upper frame beam and the lower frame beam, the buckling-restrained steel plate wall includes two vertically arranged steel frame columns and a corrugated steel plate connected between the two steel frame columns, the steel frame column is a hollow square column, the embedded steel column includes an upper embedded steel column and a lower embedded steel column arranged vertically, the embedded steel column is welded to the frame beam, the upper embedded steel column and the lower embedded steel column are respectively inserted into the upper end and the lower end of the steel frame column and are slidably connected to the steel frame column, force transfer beams are respectively arranged at the upper and lower edges of the corrugated steel plate, the force transfer beam is connected to the corrugated steel plate, and the foaming material filling layer is filled between the force transfer beam and the frame beam.

[0006] Further, in the sliding structure of the buckling-restrained steel plate wall for building earthquake resistance provided by the present invention, it may further have the following characteristics: a low friction coefficient material layer is covered on the surface of the sliding contact interface between the embedded steel column and the steel frame column.

[0007] Further, in the sliding structure of the buckling-restrained steel plate wall for building earthquake resistance provided by the present invention, it may further have the following characteristics: the low friction coefficient material layer is a polytetrafluoroethylene material layer or a ultra-high molecular weight polyethylene material layer.

[0008] Furthermore, in the buckling-restrained steel plate wall sliding structure for building earthquake resistance provided by the present invention, it may further have the following characteristics: the low-friction coefficient material layer is a sleeve structure, and the sliding contact interface of the embedded steel column and the low-friction coefficient material layer is a nested connection.

[0009] Furthermore, in the buckling-restrained steel plate wall sliding structure for building earthquake resistance provided by the present invention, it may further have the following characteristics: the surface roughness of the low-friction coefficient material layer is 0.2 μm to 0.8 μm

[0010] Furthermore, in the buckling-restrained steel plate wall sliding structure for building earthquake resistance provided by the present invention, it may further have the following characteristics: the steel boundary frame column is provided with lubricating grooves for filling lubricating grease on the surface of the sliding contact interface with the embedded steel column.

[0011] Furthermore, in the buckling-restrained steel plate wall sliding structure for building earthquake resistance provided by the present invention, it may further have the following characteristics: the thickness of the foaming material filling layer is 20 mm to 50 mm.

[0012] Furthermore, in the buckling-restrained steel plate wall sliding structure for building earthquake resistance provided by the present invention, it may further have the following characteristics: the force-transfer beam is a square steel pipe, and steel plates are provided at the ends of the force-transfer beam.

[0013] Furthermore, in the buckling-restrained steel plate wall sliding structure for building earthquake resistance provided by the present invention, it may further have the following characteristics: the force-transfer beam is an I-beam, and stiffening plates are provided at the ends of the force-transfer beam.

[0014] The present invention also provides a construction method for the above-mentioned buckling-restrained steel plate wall sliding structure for building earthquake resistance, which is characterized by including the following steps: Step 1, installing the boundary frame structure, including the previously installed frame beam and the later installed steel boundary frame column; Step 2, installing the embedded steel column and slidingly connecting the embedded steel column with the steel boundary frame column; Step 3, installing the force-transfer beam, hoisting the corrugated steel plate and rigidly welding it to the steel boundary frame column; Step 4, applying the foaming material to form a filling layer between the force-transfer beam and the frame beam.

[0015] Compared with the prior art, the present invention has the following remarkable advantages:

[0016] The buckling-restrained steel plate wall sliding structure for building earthquake resistance of the present invention is designed by sliding. Through the sliding design, the steel plate wall and the surrounding steel boundary frame columns do not bear vertical loads, blocking the transfer of vertical loads, effectively reducing analysis deviation, and improving the seismic stability ability. The design of the low-friction coefficient material layer and the lubricating grooves reduces the frictional resistance, making the sliding smoother and more reliable. The foaming material filling layer is filled between the force-transfer beam and the frame beam, releasing the constraint between the force-transfer beam and the frame beam. The buckling-restrained steel plate wall sliding structure for building earthquake resistance of the present invention is applicable to newly built or renovated high-rise buildings, bridges and other seismic structures. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the sliding structure of the buckling-restrained steel plate wall for building earthquake resistance in the embodiment of the present invention;

[0018] Figure 2 It is Figure 1 A schematic diagram of the structural details at A;

[0019] Figure 3 It is a schematic diagram of an implementation form of the force-transfer beam in the embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of another implementation form of the force-transfer beam in the embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of yet another implementation form of the force-transfer beam in the embodiment of the present invention. Specific implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the following embodiments will specifically elaborate on the technical solutions of the present invention in conjunction with the accompanying drawings.

[0023] Refer to Figure 1 , this embodiment provides a sliding structure of a buckling-restrained steel plate wall for building earthquake resistance, which includes: a frame beam 1, a buckling-restrained steel plate wall, an embedded steel column 4, a force-transfer beam 5, and a foamed material filling layer 6.

[0024] The frame beam 1 includes two upper and lower frame beams 1 arranged horizontally. The frame beam 1 is connected and fixed to the building by conventional building construction methods.

[0025] The buckling-restrained steel plate wall is located between the upper frame beam 1 and the lower frame beam 1. The buckling-restrained steel plate wall is composed of two vertically arranged steel boundary columns 2 and a corrugated steel plate 3 connected between the two steel boundary columns 2. The buckling-restrained steel plate wall is rigidly connected to the lower frame beam 1 (i.e., the floor beam), and the connection method is welding technology, which is convenient for construction and installation. Its weld thickness is 8 mm, which can effectively transfer the horizontal shear force to the floor beam, and at the same time ensure the overall stiffness and force coordination of the structure.

[0026] The embedded steel column 4 includes an upper embedded steel column 4 and a lower embedded steel column 4 arranged vertically, and the embedded steel column 4 is welded to the frame beam 1. Refer to Figures 3 to 5 , and stiffening plates 9 are also arranged inside the embedded steel column 4.

[0027] Refer to Figure 1 and 2 , the steel boundary column 2 is a hollow square column. The upper embedded steel column 4 and the lower embedded steel column 4 are respectively inserted into the upper end and the lower end of the steel boundary column 2 and are slidably connected to the steel boundary column 2.

[0028] A low-friction coefficient material layer 7 is covered on the surface of the sliding contact interface between the embedded steel column 4 and the steel frame column 2. The low-friction coefficient material layer 7 is a polytetrafluoroethylene (PTFE) material layer or an ultra-high molecular weight polyethylene (UHMWPE) material layer. In this embodiment, the PTFE material and the UHMWPE material are commercially available products. The surface roughness of the low-friction coefficient material layer 7 is set to 0.2 μm to 0.8 μm, so as to have good sliding performance. The low-friction coefficient material layer 7 is of a sleeve structure, and the sliding contact interface of the embedded steel column 4 and the low-friction coefficient material layer 7 are in a nested connection to avoid falling off.

[0029] A lubricating groove for filling lubricating grease is provided on the surface of the sliding contact interface between the steel frame column 2 and the embedded steel column 4. The lubricating grease is a solid lubricant or a durable lubricating oil. This reduces the frictional resistance and enables the sliding contact interface to have a self-lubricating function.

[0030] The corrugated steel plate 3 serves as the main shock-absorbing member. The thickness of the corrugated steel plate 3 is 12 mm. Force-transfer beams 5 are respectively provided at the upper and lower edges of the corrugated steel plate 3, and the force-transfer beams 5 are connected to the corrugated steel plate 3.

[0031] See Figures 3 to 5 , the two ends of the force-transfer beam 5 are fixedly connected to the steel frame column 2. There are the following several forms: The first one is shown in Figure 3 , the force-transfer beam 5 is a square steel pipe, and a steel plate is provided at the end of the force-transfer beam 5. A steel plate 81 is provided at the connection between the end face of the force-transfer beam 5 and the steel frame column 2, and the force-transfer beam 5 and the steel frame column 2 are respectively welded and fixed to the two sides of the steel plate 81. The second one is shown in Figure 4 , the force-transfer beam 5 is a square steel pipe, and a steel plate is provided at the end of the force-transfer beam 5. A steel plate 82 is provided on each of the two side faces of the force-transfer beam 5, and the edge of the steel plate 82 is welded and fixed to the steel frame column 2. The third one is shown in Figure 5 , the force-transfer beam 5 is an I-beam, and a stiffening plate 83 is provided at the end of the force-transfer beam 5. The stiffening plate includes obliquely arranged and symmetrically arranged stiffening plates.

[0032] A foamed material filling layer 6 is filled between the force-transfer beam 5 and the frame beam 1 to release the constraint between the force-transfer beam and the frame beam. The foamed material filling layer 6 uses commercially available closed-cell foamed polyurethane or high-strength foamed plastics, and has good anti-compressive deformation performance. The thickness of the foamed material filling layer 6 is 20 mm to 50 mm.

[0033] This embodiment also provides a construction method for the buckling-resistant steel plate wall sliding structure for the above building earthquake resistance, including the following steps:

[0034] Step 1, install the boundary frame structure, including the previously installed frame beam 1 and the later installed steel frame column 2.

[0035] Step 2: Install the embedded steel column 4 and slidably connect the embedded steel column 4 to the steel frame column 2.

[0036] Step 3: Install the load transfer beam 5, hoist and rigidly weld the corrugated steel plate 3 to the steel frame column 2.

[0037] Step 4: Apply foaming material to form a filling layer between the load transfer beam 5 and the frame beam 1.

[0038] Step 5: Slide the water-proof cover plate on the buckling-restrained steel plate wall structure and seal all joints with sealant to complete the water-proof protection measures for the joints.

[0039] The above embodiments are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A buckling-resistance steel plate wall sliding structure for building earthquake resistance, characterized in that: include: Frame beams, buckling-resistant steel plate walls, embedded steel columns, force-transmitting beams, and foam filling layers. The frame beam comprises two horizontally arranged upper and lower frame beams, and the frame beam is connected and fixed to the building. The buckling-resistant steel plate wall is located between the upper frame beam and the lower frame beam, and includes two vertically arranged steel frame columns and a corrugated steel plate connected between the two steel frame columns. The steel frame column is a hollow square column, and the embedded steel column includes an upper embedded steel column and a lower embedded steel column which are vertically arranged. The embedded steel column is welded to the frame beam, and the upper embedded steel column and the lower embedded steel column are respectively inserted into the upper end and the lower end of the steel frame column and are slidably connected with the steel frame column. The upper and lower edges of the corrugated steel plate are respectively provided with force transmission beams, the force transmission beams are connected to the corrugated steel plate, and the foam material filling layer is filled between the force transmission beams and the frame beams.

2. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 1, characterized in that: in, The surface of the embedded steel column at the sliding contact interface with the steel frame column is covered with a low friction coefficient material layer.

3. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 2, characterized in that: in, The low friction coefficient material layer is a polytetrafluoroethylene material layer or an ultra-high molecular weight polyethylene material layer.

4. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 2 or 3, characterized in that: in, The low friction coefficient material layer is a sleeve structure, and the sliding contact interface of the embedded steel column is nestedly connected to the low friction coefficient material layer.

5. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 2 or 3, characterized in that: in, The surface roughness of the low friction coefficient material layer is 0.2 μm to 0.8 μm.

6. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 2, characterized in that: in, The steel frame column is provided with a lubrication groove for filling lubricating grease on the surface of the sliding contact interface with the embedded steel column.

7. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 1, characterized in that: in, The thickness of the foam material filling layer is 20 mm to 50 mm.

8. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 1, characterized in that: in, The force transmission beam is a square steel tube, and a steel plate is arranged at the end of the force transmission beam.

9. The anti-buckling steel plate wall sliding structure for building earthquake resistance as claimed in claim 1, characterized in that: in, The force transmission beam is an I-beam, and a stiffening plate is arranged at the end of the force transmission beam.

10. A construction method for a building earthquake-resistant buckling-resistance steel plate wall sliding structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Install the boundary frame structure, including the frame beams installed first and the steel frame columns installed later; Step 2: Install the embedded steel column and slide the embedded steel column to connect it with the steel frame column; Step 3: Install the force transmission beam, hoist the corrugated steel plate, and perform rigid welding with the steel frame column; Step 4: Apply foaming material to form a filling layer between the force transmission beam and the frame beam.

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