Flexible shock insulation deformation joint structure of self-resetting membrane structure wall

Abstract

The invention provides a self-resetting membrane structure wall flexible shock insulation deformation joint structure, and relates to the technical field of deformation joint construction, the self-resetting membrane structure wall flexible shock insulation deformation joint structure comprises two elastic membranes respectively arranged on two side surfaces of a deformation joint; the two ends of the elastic film are wound on a rotating shaft, the bottom of the rotating shaft is rotatably connected with the wall bodies at the two ends of the deformation joint, and a spring is arranged at the bottom of the rotating shaft; the flexible composite cloth is arranged in the deformation joint and located between the two elastic films. The problems that the movable plate door cannot be installed in a small space, and the deformation joint cover plate cannot deform in any direction can be solved.

Description

Technical Field

[0001] This invention relates to the field of expansion joint construction technology, specifically a flexible seismic isolation expansion joint structure for a self-resetting membrane structure wall. Background Technology

[0002] With the continuous development of building technology, seismically isolated buildings have been widely used in high-intensity earthquake zones, important public buildings, and large and complex structures. These buildings, by incorporating seismic isolation layers, flexibly connect the superstructure to the foundation, significantly reducing the seismic response of the superstructure during an earthquake and effectively improving the building's seismic safety.

[0003] However, when seismically isolated buildings encounter earthquakes, temperature changes, or foundation settlement, the various parts of the structure will experience significant relative displacement, which places extremely high demands on the design of wall expansion joints. Existing wall expansion joint methods generally have the following problems: 1. Traditional wall expansion joints often exhibit larger deformation in one direction and smaller deformation in another, while seismically isolated wall expansion joints show larger deformation in all directions; 2. Referring to the national standard drawing 22G620-1 "Detailed Drawings of Seismic Isolation Structures," traditional seismic isolation wall expansion joint methods use trapdoors for closure or prefabricated aluminum alloy expansion joint covers.

[0004] However, the design of the sliding rails in prefabricated aluminum alloy expansion joint covers is unsuitable for expansion joints wider than 400mm, and also unsuitable for deformations not parallel to the wall. Trapdoor construction presents size and space constraints; an expansion joint with a deformation of 'd' requires a trapdoor larger than 2'd. Furthermore, the sliding direction of the trapdoor must ensure that no pipes, doors, or other devices exist within the space of deformation 'd'. Therefore, using a sliding door requires at least 3'd of space, which may limit the trapdoor's design and cause problems during actual deformation. Summary of the Invention

[0005] In view of the above-mentioned prior art, the present invention proposes a flexible seismic isolation deformation joint structure for a self-resetting membrane structure wall.

[0006] This invention provides a self-resetting membrane structure wall flexible seismic isolation deformation joint structure, comprising: Two elastic membranes are respectively located on both sides of the expansion joint; both ends of the elastic membranes are wound on a rotating shaft, the bottom of the rotating shaft is rotatably connected to the walls at both ends of the expansion joint, and a spring is provided at the bottom of the rotating shaft; A flexible composite fabric is disposed in the deformation joint and located between two elastic membranes.

[0007] Preferably, a metal bracket is provided on the wall at both ends of the expansion joint, and a ball bearing is provided at the upper end of the metal bracket. The ball bearing is provided with a rotating hole, and the bottom of the rotating shaft is movably connected to the rotating hole of the ball bearing and extends into the metal bracket. Multiple balls are provided in the rotating hole at the periphery of the rotating shaft, and a tray is provided on the ball bearing at the upper end of the rotating hole. The tray is provided with a through hole for the rotating shaft to pass through.

[0008] Preferably, a U-shaped metal cover is provided on the outer side of the rotating shaft, and a metal cover plate is provided on the outer end of the U-shaped metal cover.

[0009] Preferably, the spring is wound on a rotating shaft, and its free end is fixed to a ball bearing support.

[0010] Preferably, the elastic membrane is made of Class A fire-retardant material.

[0011] Preferably, the flexible composite fabric is a composite fireproof and waterproof roller shutter fabric, and the interior of the composite fireproof and waterproof roller shutter fabric is filled with sound insulation material.

[0012] Preferably, a kickboard is provided at the expansion joint.

[0013] Compared to existing technologies, the advantages of this invention are as follows: The self-resetting membrane structure wall flexible seismic isolation expansion joint structure provided by this invention uses an elastic membrane to solve the problems of trapdoors not being able to be installed in small spaces and expansion joint covers not being able to deform in any direction, making it suitable for various wall expansion joints. Furthermore, by using a spring-like device that can store elastic potential energy, the automatic resetting of the expansion joint can be achieved through the conversion of kinetic and elastic potential energy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the flexible seismic isolation deformation joint structure of the self-resetting membrane structure wall in an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the connection between the rotating shaft and the wall in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the installation of the spring in an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the installation of the kickboard in an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the expansion joint on both sides moving in close proximity along the wall direction in an embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the two walls on both sides of the expansion joint moving in opposite directions along the wall direction in an embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of the movement of the walls on both sides of the expansion joint along the direction perpendicular to the wall in an embodiment of the present invention.

[0021] In the diagram, 1. Elastic membrane; 2. Flexible composite fabric; 3. Expansion joint; 4. Shaft; 5. Spring; 6. Metal bracket; 7. Ball bearing support; 8. Ball bearing; 9. Tray; 10. U-shaped metal cover; 11. Metal cover plate; 12. Kickboard. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific embodiments.

[0023] Example: Figure 1-7 The self-resetting membrane structure wall flexible seismic isolation expansion joint structure shown includes two elastic membranes 1 and a flexible composite cloth 2. The two elastic membranes 1 are respectively installed on the two sides of the expansion joint 3. The two ends of the flexible composite cloth 2 are respectively fixed to the wall at both ends of the inner side of the expansion joint 3 by screws, and are located in the middle of the two elastic membranes 1.

[0024] Furthermore, both ends of the elastic membrane 1 are wound around the rotating shaft 4, and the bottom of the rotating shaft 4 is rotatably connected to the walls at both ends of the expansion joint 3. A spring 5 is provided at the bottom of the rotating shaft 4.

[0025] Specifically, inverted L-shaped metal brackets 6 are installed on the walls at both ends of the expansion joint 3. The installation method can be pre-embedded parts, chemical anchoring, or expansion bolt connection; in this embodiment, expansion bolts are used for connection. An L-shaped ball bearing support 7 is provided at the upper end of the metal bracket 6. The ball bearing support 7 has a rotating hole, and the bottom of the rotating shaft 4 is movably connected to the rotating hole of the ball bearing support 7 and extends into the metal bracket 6. Multiple balls 8 are arranged around the rotating shaft 4 in the rotating hole to reduce friction during rotation. A tray 9 is provided on the ball bearing support 7 at the upper end of the rotating hole. The tray 9 has a through hole for the rotating shaft 4 to pass through, thus limiting the movement of the balls 8.

[0026] Furthermore, the spring 5 is wound around the shaft 4, with its free end fixed to the ball bearing support 7 or other rigid body. After installation, the spring 5 is wound, and its elastic potential energy is sufficient to cover at least a certain width of the elastic membrane 1. Thus, when the expansion joint 3 shifts, or the gap increases or decreases, the spring 5 can straighten the elastic membrane 1 and convert kinetic energy into elastic potential energy, automatically resetting at the end of the deformation.

[0027] Furthermore, a U-shaped metal cover 10 is provided on the outer side of the rotating shaft 4, and a metal cover plate 11 is provided on the outer end of the U-shaped metal cover 10. The metal cover plate 11 is flush with the decorative surface, and a decorative seam can be set between the metal cover plate 11 and the decorative surface to prevent cracking. The U-shaped metal cover 10 and the metal cover plate 11 are installed on the walls at both ends of the expansion joint 3 by several screws, and can be easily disassembled and inspected when maintenance is required.

[0028] Furthermore, the elastic membrane 1 is made of Class A fire-retardant material. When used as a wall surface, it should have a certain degree of scratch resistance and can be made of composite materials. When used indoors, its material should be non-slip, and when used outdoors, it should be waterproof and weather-resistant.

[0029] Furthermore, since the wall has requirements for waterproofing, fireproofing, and sound insulation, a flexible composite fabric 2 is installed in the expansion joint 3. The flexible composite fabric 2 is a composite fireproof and waterproof roller shutter fabric, and the interior of the composite fireproof and waterproof roller shutter fabric is filled with sound insulation material.

[0030] The lengths of the elastic membrane 1 and the flexible composite fabric 2 are greater than the sum of the width of the expansion joint 3 and the width of the seismic isolation deformation, with a certain deformation allowance. Thus, the flexible composite fabric 2 can still provide waterproofing, fireproofing, and sound insulation even when the expansion joint 3 deforms.

[0031] Furthermore, a kick plate 12 is provided at the expansion joint 3. When a sliding cover plate is present, the kick plate 12 is connected to the sliding cover plate to avoid conflict between the two during deformation.

[0032] Such a wall seismic isolation expansion joint structure, which is mainly made of flexible materials, can not only make up for the problems of metal cover plates and trapdoors, but also has omnidirectional deformation capacity during earthquakes.

[0033] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent solutions made using the contents of the present invention specification, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. A self-resetting membrane structure wall flexible seismic isolation deformation joint structure, characterized in that, include: Two elastic membranes are respectively located on both sides of the expansion joint; both ends of the elastic membranes are wound on a rotating shaft, the bottom of the rotating shaft is rotatably connected to the walls at both ends of the expansion joint, and a spring is provided at the bottom of the rotating shaft; A flexible composite fabric is disposed in the deformation joint and located between two elastic membranes.

2. The self-resetting membrane structure wall flexible seismic isolation deformation joint structure as described in claim 1, characterized in that, Metal supports are installed on the walls at both ends of the expansion joint. A ball bearing is installed at the upper end of the metal support. A rotating hole is provided on the ball bearing. The bottom of the rotating shaft is movably connected to the rotating hole of the ball bearing and extends into the metal support. Multiple balls are provided in the rotating hole around the rotating shaft. A tray is provided on the ball bearing at the upper end of the rotating hole. A through hole is provided on the tray for the rotating shaft to pass through.

3. The self-resetting membrane structure wall flexible seismic isolation deformation joint structure as described in claim 1 or 2, characterized in that, A U-shaped metal cover is provided on the outer side of the rotating shaft, and a metal cover plate is provided on the outer end of the U-shaped metal cover.

4. The self-resetting membrane structure wall flexible seismic isolation deformation joint structure as described in claim 2, characterized in that, The spring is wound on the shaft, and its free end is fixed to the ball bearing support.

5. The self-resetting membrane structure wall flexible seismic isolation deformation joint structure as described in claim 1 or 2, characterized in that, The elastic membrane is made of Class A fire-resistant material.

6. The self-resetting membrane structure wall flexible seismic isolation deformation joint structure as described in claim 1 or 2, characterized in that, The flexible composite fabric is a composite fireproof and waterproof roller shutter fabric, and the interior of the composite fireproof and waterproof roller shutter fabric is filled with sound insulation material.

7. The self-resetting membrane structure wall flexible seismic isolation deformation joint structure as described in claim 1 or 2, characterized in that, A kickboard is installed at the expansion joint.

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