Bidirectional sliding shock insulation deformation joint mounting system
By installing vertical and horizontal sliding cover plate systems at building expansion joints, the problem of traditional expansion joints being easily damaged under earthquake loads is solved, achieving two-way seismic buffering and enhancing the seismic performance and decorative effect of the expansion joint system.
Patent Information
- Application Number
- CN202520365412.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Traditional building expansion joints are prone to damage under earthquakes and cannot effectively buffer both horizontal and vertical seismic waves simultaneously.
The system employs a vertical and horizontal sliding cover plate system, which forms a two-way sliding system through a galvanized steel base plate and a reinforcing structure to achieve a buffering function under the impact of seismic waves. The system is also hinged to the building structure through a rotating shaft to enhance adhesion and anti-slip performance.
It effectively reduces the damage to weak parts of the expansion joint caused by earthquake impact, achieves two-way seismic resistance, enhances the adhesion and anti-slip performance between the expansion joint system and the decorative layer, and meets the seismic design requirements of buildings under the new situation.
Smart Images
Figure CN223793720U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction, specifically to a two-way sliding seismic isolation expansion joint installation system. Background Technology
[0002] Traditional building expansion joints only have fireproof, corrosion-proof, and decorative sealing functions. Under the complex action of earthquakes, they often suffer significant damage at weak points in the expansion joints. As the construction industry's requirements for the reliability, practicality, durability, and decoration of buildings increase, higher standards are being set for the sliding performance of expansion joint structures. Utility Model Content
[0003] The purpose of this invention is to provide a bidirectional sliding seismic isolation expansion joint installation system to solve the technical problem that existing technologies cannot simultaneously perform horizontal and vertical seismic buffering.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A bidirectional sliding seismic isolation expansion joint installation system is characterized by comprising a vertical sliding cover plate system for buffering vertical seismic wave impact and a horizontal sliding cover plate system for buffering horizontal seismic wave impact; the vertical and horizontal sliding cover plate systems are hinged together, and their overall area is adapted to the expansion joint area; both the vertical and horizontal sliding cover plate systems include a galvanized steel plate base plate that fits against the bottom base layer of the expansion joint and a panel reinforcement structure on the top surface of the galvanized steel plate base plate; the top surface of the galvanized steel plate base plate is provided with a decorative surface layer, and the top surface of the decorative surface layer is flush with the side base surface of the expansion joint; the four sides of the galvanized steel plate base plate are turned up to form side plates, forming a groove structure adapted to the shape of the expansion joint; the side plates are vertically arranged with the galvanized steel plate base plate to form a foundation sidewall or relatively inclined to form a sliding end, the sliding end is parallel to the expansion joint sidewall, and the bottom surface of the inclined side plate is provided with a Z-shaped overlap, the first horizontal part of the Z-shaped overlap overlapping the base surface of the building structure on the side of the expansion joint.
[0006] The vertical sliding cover system has a rectangular structure, with its left side hinged to the horizontal sliding cover system, its right and upper sides being sliding ends, and its lower side hinged to the base surface of the building structure on the side of the expansion joint. The horizontal sliding cover system has a rectangular structure, with its left, upper, and lower sides being sliding ends, and its right side hinged to the vertical sliding cover system.
[0007] More preferably, the panel reinforcement structure of the horizontal sliding cover system consists of stiffening ribs spaced apart and parallel to the extension direction of the expansion joint, and the panel reinforcement structure of the vertical sliding cover system consists of stiffening ribs spaced apart and perpendicular to the extension direction of the expansion joint. The stiffening ribs are connected between the two side plates and are steel bars made of galvanized steel sheets. Anti-slip ribs are provided between adjacent stiffening ribs. The anti-slip ribs are made of steel bars and are arranged perpendicular to the upper and lower sides or the left and right sides of the stiffening ribs.
[0008] More preferably, the expansion joint is a horizontal expansion joint between building structures, and the vertical sliding cover system is formed by welding together several sliding cover units.
[0009] Compared with the prior art, this utility model has the following features and beneficial effects:
[0010] The shape and size of the building expansion joints in this application can be flexibly processed and produced, making them convenient to manufacture and efficient to install. They can effectively implement the new requirements of the state and industry for seismic design of buildings under the new situation. The two sliding systems, the vertical sliding cover system and the horizontal sliding cover system, are hinged to the structure through a rotating shaft, which can realize bidirectional sliding under seismic action in the plane, minimizing the damage of earthquake impact to the weak parts of the expansion joint. This effectively distinguishes it from traditional fixed expansion joints. Anti-slip ribs parallel to the long side are welded on the galvanized steel plate base plate, which greatly enhances the adhesion and anti-slip performance between the expansion joint system and the upper decorative layer.
[0011] The vertical and horizontal sliding cover systems are mainly connected to each other or hinged to the building structure through rotating shafts to form an integral whole. At the same time, the slope design at the sliding end cleverly realizes the bidirectional sliding seismic resistance under earthquake impact. The horizontal and vertical anti-slip ribs welded from galvanized steel plates enhance the adhesion and anti-slip performance between the expansion joint system and the upper decorative layer, thereby achieving the dual functions of bidirectional seismic resistance and decorative aesthetics. Attached Figure Description
[0012] Figure 1 This is a structural diagram of a bidirectional sliding vibration isolation expansion joint installation system according to this application;
[0013] Figure 2 This is a side view of a bidirectional sliding vibration isolation expansion joint installation system according to this application;
[0014] Figure 3 This is a schematic diagram of the sliding end structure of this application. Detailed Implementation
[0015] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.
[0016] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.
[0017] A bidirectional sliding seismic isolation expansion joint installation system, such as Figures 1-3 As shown, the system includes a vertical sliding cover plate system 1 for buffering vertical seismic wave impact and a horizontal sliding cover plate system 2 for buffering horizontal seismic wave impact. The vertical sliding cover plate system 1 extends along the length of the expansion joint. The vertical sliding cover plate system 1 and the horizontal sliding cover plate system 2 are hinged together, and their overall area is adapted to the area of the expansion joint. Both the vertical sliding cover plate system 1 and the horizontal sliding cover plate system 2 include a galvanized steel plate base plate 3 that fits into the bottom base layer of the expansion joint and a panel reinforcement structure 4 on the top surface of the galvanized steel plate base plate 3. The top surface of the galvanized steel plate base plate 3 is provided with a decorative surface layer 7, and the top surface of the decorative surface layer 7 is flush with the side base surface of the expansion joint. The four edges of the galvanized steel plate base plate 3 are turned up to form side plates 5, forming a groove structure adapted to the shape of the expansion joint. The side plates 5 are perpendicular to the galvanized steel plate base plate 3 to form the foundation sidewall or are relatively inclined to form a sliding end 8. The sliding end 8 is parallel to the sidewall of the expansion joint, and the bottom surface of the inclined side plate 5 is provided with a Z-shaped overlap 6. The first horizontal lap joint of the Z-type overlap 6 is located on the side of the building structure base surface.
[0018] The vertical sliding cover system 1 is a rectangular structure. It is hinged to the horizontal sliding cover system 2 on the left side, and the right and upper sides are sliding ends 8. The lower side is hinged to the base surface of the building structure on the side of the expansion joint. The horizontal sliding cover system 2 is a rectangular structure. The left, upper, and lower sides are sliding ends 8. The right side is hinged to the vertical sliding cover system 1. The length of the vertical sliding cover system 1 is much greater than the width of the horizontal sliding cover system 2. The length and width directions of the two are in the same direction, and the adjacent side plates that are hinged to each other are all welded with 20mm thick stiffening plates.
[0019] The panel reinforcement structure 4 of the horizontal sliding cover system 2 consists of stiffening ribs arranged at intervals parallel to the extension direction of the expansion joint. The panel reinforcement structure 4 of the vertical sliding cover system 1 consists of stiffening ribs arranged at intervals perpendicular to the extension direction of the expansion joint. The stiffening ribs are connected between the two side plates 5 and are steel bars made of galvanized steel plates. Anti-slip ribs 9 are provided between adjacent stiffening ribs. The anti-slip ribs 9 are made of steel bars with a diameter of 8mm and are arranged vertically to the upper and lower sides or the left and right sides of the stiffening ribs. The anti-slip ribs 9 should be arranged at a certain distance from the stiffening ribs.
[0020] Expansion joints can be horizontal expansion joints between building structures or vertical expansion joints between structures with vertical spacing. The vertical sliding cover system 1 is formed by welding several sliding cover units, that is, it is set along the length of the expansion joint.
[0021] An installation method for a bidirectional sliding seismic isolation expansion joint system includes the following steps:
[0022] Step 1: The workers measure the dimensions of the seismic isolation joints on-site and, based on the design drawings, consider the overlap dimensions to complete the order and re-measurement processing.
[0023] Step 2: Using galvanized steel sheets of sufficient thickness as required by the design, the galvanized steel sheet base plate is processed into the vertical sliding cover plate system 1 and the horizontal sliding cover plate system 2 of a two-way sliding vibration isolation deformation joint installation system. Then, the stiffening ribs, Z-shaped overlaps 6 and anti-slip ribs 9 are processed and integrated onto the galvanized steel sheet base plate.
[0024] Step 3: On-site measurement and marking of installation control lines and panel division lines. First, install the vertical sliding cover plate 1 in the designated position and connect it to the building structure through the rotating shaft to achieve rotation. Similarly, install the vertical sliding cover plate 2, vertical sliding cover plate 3, and vertical sliding cover plate N in sequence. Weld and reinforce the connection between adjacent vertical sliding cover plates to form a whole.
[0025] Step 4: After all the vertical sliding cover plates are installed, connect the horizontal sliding cover plate system 2 and the vertical sliding cover plate system 1 through the steering shaft to form a two-way sliding vibration isolation expansion joint system;
[0026] Step 5: After installation, rotate and adjust each cover plate system to ensure that its opening angle and sliding range meet the design requirements for sliding and deformation resistance. Then, use silicone weather-resistant sealant to seal the edges tightly to the building structure.
[0027] Step Six: Clean the galvanized steel plate base panel thoroughly, complete the decorative surface layer construction at the building structure expansion joint, and improve the integrity and firmness of the decorative surface layer and the galvanized steel plate base panel by using anti-slip ribs 9. Then, fill the joint with special flexible sealing caulking material at the junction of the expansion joint and the system.
[0028] In this application, a vertical sliding cover system and a horizontal sliding cover system work together. When the structural expansion joint is impacted by vertical seismic waves, the vertical sliding cover system provides sliding buffering to reduce the damage to the building structure. When the structural expansion joint is impacted by horizontal seismic waves, the horizontal sliding cover system provides sliding buffering to reduce the damage to the building structure. Simultaneously, the vertical and horizontal sliding cover systems together form a bidirectional sliding seismic isolation expansion joint installation system. Through the combined action of their internal structures, the expansion joint achieves its anti-deformation function under complex seismic conditions.
[0029] The vertical sliding cover plate system primarily uses galvanized steel sheets processed to the designed dimensions as the base plate of the expansion joint system. Vertical stiffening ribs are welded onto the galvanized steel sheets at designed intervals along the direction parallel to the short side. The galvanized steel sheets are folded into a vertical sliding end on one side along the long side, and the other side along the long side connects to the vertical rotation axis. Horizontal anti-slip ribs are welded onto the galvanized steel sheets within each stiffening rib cell. The horizontal sliding cover plate system primarily uses galvanized steel sheets processed to the designed dimensions as the base plate of the expansion joint system. Horizontal stiffening ribs are welded onto the galvanized steel sheets at designed intervals along the direction parallel to the short side. The side of the galvanized steel sheets adjacent to the vertical sliding cover plate system along the long side connects to the horizontal rotation axis, and the other side along the long side is folded into a horizontal sliding end. Vertical anti-slip ribs are welded onto the galvanized steel sheets within each stiffening rib cell.
[0030] When the structural expansion joint is impacted by vertical seismic waves, the vertical sliding cover system can buffer the impact and reduce the damage to the building structure. Similarly, when the expansion joint is impacted by horizontal seismic waves, the horizontal sliding cover system can buffer the impact and reduce the damage to the building structure. Simultaneously, the vertical and horizontal sliding cover systems together form a two-way sliding isolation expansion joint installation system. Through the combined action of their internal structures, the expansion joint achieves its anti-deformation function under complex seismic conditions. The galvanized steel laminated plate primarily serves as the base plate for the expansion joint structure and also provides a flexible connection between two adjacent building structures. Vertical and horizontal stiffening ribs primarily enhance the structural performance of the expansion joint system. The sliding end, through its own inclined surface structure, achieves sliding under seismic load impact, reducing seismic damage. The rotating shaft primarily enables the hinged connection between the vertical and horizontal sliding cover systems and the building structure, forming a unified whole and preventing rigid failure at weak points in the expansion joint. Anti-slip strips primarily enhance the adhesion and anti-slip properties between the expansion joint system and the upper decorative layer.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bidirectional sliding seismic isolation expansion joint installation system, characterized in that: It includes a vertical sliding cover plate system (1) for buffering vertical seismic wave impact and a horizontal sliding cover plate system (2) for buffering horizontal seismic wave impact; the vertical sliding cover plate system (1) and the horizontal sliding cover plate system (2) are hinged to each other, and the overall area is adapted to the area of the expansion joint; the galvanized steel plate base plate (3) has its four sides turned up to form side plates (5), forming a groove structure adapted to the shape of the expansion joint; the side plates (5) are set vertically to the galvanized steel plate base plate (3) to form the foundation side wall or set relatively inclined to form a sliding end (8), the sliding end (8) is set parallel to the expansion joint side wall, and the bottom surface of the inclined side plate (5) is provided with a Z-shaped overlap (6), the first horizontal part of the Z-shaped overlap (6) overlaps the base surface of the building structure on the side of the expansion joint.
2. The bidirectional sliding seismic isolation expansion joint installation system as described in claim 1, characterized in that: Both the vertical sliding cover system (1) and the sliding cover system (2) include a galvanized steel plate base plate (3) that fits into the bottom base of the expansion joint and a panel reinforcement structure (4) on the top surface of the galvanized steel plate base plate (3). The top surface of the galvanized steel plate base plate (3) is provided with a decorative surface layer (7), and the top surface of the decorative surface layer (7) is flush with the side base surface of the expansion joint.
3. The bidirectional sliding seismic isolation expansion joint installation system as described in claim 1, characterized in that: The vertical sliding cover system (1) is a rectangular structure. The left side is hinged to the horizontal sliding cover system (2), the right side and the upper side are sliding ends (8), and the lower side is hinged to the base surface of the building structure on the side of the expansion joint. The horizontal sliding cover system (2) is a rectangular structure. The left side, the upper side and the lower side are sliding ends (8), and the right side is hinged to the vertical sliding cover system (1).
4. The bidirectional sliding seismic isolation expansion joint installation system as described in claim 1, characterized in that: The panel reinforcement structure (4) of the horizontal sliding cover system (2) consists of stiffening ribs arranged at intervals parallel to the extension direction of the expansion joint, and the panel reinforcement structure (4) of the vertical sliding cover system (1) consists of stiffening ribs arranged at intervals perpendicular to the extension direction of the expansion joint; anti-slip ribs (9) are provided between adjacent stiffening ribs, and the anti-slip ribs (9) are made of steel bars and are arranged vertically on the upper and lower sides or the left and right sides of the reinforcement ribs.
5. A bidirectional sliding seismic isolation expansion joint installation system as described in any one of claims 1 to 4, characterized in that: The expansion joint is a horizontal expansion joint between building structures, and the vertical sliding cover system (1) is formed by welding several sliding cover units.