Multi-functional rubber pad limiting device

Abstract

The invention belongs to the technical field of building construction, in particular to a multi-functional rubber pad limiting device. Left and right sides between a bridge surface and a bridge pier are respectively equipped with two rubber pads. Left and right sides between a bridge surface and a bridge pier are respectively equipped with two rubber pads. Two sides of each rubber pad are respectively equipped with six support rods. Bearings vertically support rod bodies of the support rods. At the center between through holes of two support rods, a roller is arranged. Limiting boards are arranged on two sides of each rubber pad. Bolts vertically penetrate through the limiting boards and the top surface of the bridge pier. Multiple limiting ramps are arranged on the surfaces of the limiting boards at equal intervals and extend into the bridge pier. When an earthquake happens, longitudinal waves deliver energy to the bridge pier. The bridge pier then delivers energy to the rubber pads.Slight deformation is generated on the rubber pads and energy is consumed. Transverse waves transfer energy to the bridge surface and the bridge pier. Relative displacement is generated between the bridge surface and the bridge pier. The limiting ramps on surfaces of the limiting boards produce relative displacement in order to avoid great displacement and prevent the bridge surface from falling off.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to a multifunctional rubber pad limiting device. Background technique [0002] With the rapid development of traffic construction, bridges, as hub projects on traffic lines, are growing rapidly both in number and in extension length. In earthquake-prone countries, once bridges are damaged by falling beams during an earthquake, the entire transportation network will be paralyzed. [0003] The seismic design of bridges in my country mainly emphasizes the strength of the pier so that the pier does not collapse in an earthquake. The anti-fall beam structure adopted is mainly to fix the anti-fall beam stoppers on the pier to control the longitudinal displacement and lateral displacement of the beam within a certain range. However, due to the lack of connection between the beam body and the pier body, and between the beam body and the beam body, when a high-intensity earth...

AI Technical Summary

Problems solved by technology

The rubber pad can only consume the energy transmitted by the longitudinal wave and avoid the rigid damage of the bridge deck and the bridge pier. However, when the transverse wave comes, the friction coefficient of the rubber pad is small, which will increase the relative displacement between the bridge deck and the bridge pier, and the bridge deck will fall off. very likely

Images