一种用于桥梁的减震降噪长效型伸缩装置
By adopting a unitized corrugated steel plate and integral anchor plate design in the bridge expansion joint, combined with stainless steel drainage channels and transverse reinforcing bars, the problems of installation complexity and poor drainage function of traditional anchor plate and anchor ring fixing plate structures are solved. This achieves improved robustness of the device and drainage system, extends service life and reduces noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU WANBAO BRIDGE MEMBER CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing bridge expansion joint structures use traditional anchor plate and anchor ring fixing plate structures, which are complex to install, have many welding points, poor drainage function, short service life, and are prone to aging.
It adopts a unitized corrugated steel plate and an integral anchor plate, combined with a stainless steel drainage channel and transverse steel bars. It is formed by laser cutting to reduce welding points, enhance strength, and is equipped with a drainage system to extend service life.
It simplifies the installation process, improves the device's robustness and drainage function, extends its service life, reduces noise, and enhances driving comfort.
Smart Images
Figure CN224514043U_ABST
Abstract
Claims
1. A long-acting shock-absorbing and noise-reducing expansion device for a bridge, comprising an expansion mechanism (1), characterized in that: An installation mechanism (2) is provided on one side of the telescopic mechanism (1), and a packaging mechanism (3) for fixing the telescopic mechanism (1) is connected to one side of the telescopic mechanism (1). The telescopic mechanism (1) includes a unit-type corrugated steel plate (11). A vertical reinforcing plate (12) is welded and fixed to the lower end of the unit-type corrugated steel plate (11). An integral anchor plate (13) is welded and installed on one side of the vertical reinforcing plate (12). Four sets of integral anchor plates (13) are arranged side by side. A stainless steel slag baffle plate (14) is screwed to the lower end of the unit-type corrugated steel plate (11). Two sets of unit-type corrugated steel plates (11), vertical reinforcing plates (12), and stainless steel slag baffle plates (14) are respectively arranged opposite each other. The lower end of the unit-type corrugated steel plate (11) is provided with a strip steel plate (15), and the upper end of the strip steel plate (15) is embedded with a stainless steel drainage channel (16). The stainless steel drainage channel (16) is set at the center line of the two sets of unit-type corrugated steel plates (11). The installation mechanism (2) includes concrete (22) filled at the lower end of the unit-type corrugated steel plate (11). The concrete (22) is fixedly provided with embedded steel bars (25). Transverse steel bars (24) are inserted in the concrete (22) and the integral anchor plate (13).
2. The long-acting shock-absorbing and noise-reducing expansion device for bridges according to claim 1, characterized in that: The vertical reinforcing plate (12) is provided with a grout leakage hole (121).
3. The long-lasting shock-absorbing and noise-reducing expansion device for bridges according to claim 1, characterized in that: The stainless steel slag baffle (14) is arranged in two staggered pieces.
4. A long-lasting expansion joint for vibration reduction and noise reduction in bridges according to claim 1, characterized in that: The lower end of the stainless steel drainage trough (16) is equipped with a drainage pipe (17). The strip steel plate (15), the stainless steel drainage trough (16) and the drainage pipe (17) form a drainage system. The stainless steel drainage trough (16) is tilted at 45° at the end of the telescopic device beam.
5. The long-lasting shock-absorbing and noise-reducing expansion device for bridges according to claim 1, characterized in that: The installation mechanism (2) also includes an installation bridge deck (21) for filling concrete (22), in which anti-crack steel mesh (23) is fixed laterally.
6. The long-lasting shock-absorbing and noise-reducing expansion device for bridges according to claim 1, characterized in that: The packaging mechanism (3) is used to package the transport telescopic mechanism (1). The packaging mechanism (3) includes a long L-shaped plate (31) for connecting two sets of unit corrugated steel plates (11). The long L-shaped plate (31) has screws (33) threadedly connected to both sides.
7. The long-lasting shock-absorbing and noise-reducing expansion device for bridges according to claim 1, characterized in that: Both the integral anchor plate (13) and the strip steel plate (15) are provided with a short L-shaped plate (32) on one side, and screws (33) are fixed on both sides of the short L-shaped plate (32).
8. The long-lasting shock-absorbing and noise-reducing telescopic device for bridges according to claim 1, characterized in that: One side of the unit-type corrugated steel plate (11) is corrugated. The unit-type corrugated steel plate (11), the integral anchor plate (13) and the vertical reinforcing plate (12) are formed by laser cutting of steel plates in one step.