A bridge shock-absorbing expansion joint device that can be automatically closed

Abstract

The invention belongs to the technical field of bridge structures and specifically relates to a bridge shock absorbing expansion joint device capable of being automatically closed. The bridge shock absorbing expansion joint device capable of being automatically closed comprises bridge bodies, fixed connecting heads and shock absorbing components; the bridge bodies and the fixed connecting heads fixedly coat the end parts of the bridge bodies; the shock absorbing components comprise transverse connecting plates, bent corner plates, longitudinal connecting plates, shock absorbing springs, shockabsorbing rubbers and shock absorbing connecting rods; the fixed connecting heads fixedly coat the end parts of the bridge bodies; two groups of fixed connecting heads and the shock absorbing components are symmetrically distributed between the two adjacent bridge bodies; the two shock absorbing rubbers are attached to each other; top elastic rubbers are arranged between the two shock absorbing rubbers; and bottom corners of the two fixed connecting heads are connected with each other through bottom elastic rubber. As the bridge shock absorbing expansion joint device capable of being automatically closed contains a shock absorbing structure device capable of bearing pressure in the inclined direction, the bridge shock absorbing expansion joint device capable of being automatically closed can adapt to the pressure, generated to the bridge expansion joint in the running process of heavy objects such as vehicles, in the inclined direction.

Description

technical field [0001] The invention belongs to the technical field of bridge structures, and in particular relates to a bridge damping expansion joint device that can be automatically closed. Background technique [0002] The bridge expansion joint is an expansion joint structure designed to meet the deformation requirements of the bridge deck, which is used to allow vehicles to pass smoothly and can adapt to certain stress changes. The common bridge expansion joints are located at the ends of the two sections of the bridge body. In order to ensure the shock absorption effect between the two sections of the bridge body, most existing technologies adopt a longitudinal shock absorbing structure that can withstand longitudinal pressure or a structure that can withstand lateral extrusion. Force lateral shock absorbing structure. For example, Chinese patent CN 208266680U discloses a shock-absorbing expansion joint device for railway bridges, which adopts vertically arranged lon...

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned expansion joint structure in the prior art can achieve a certain effect of shock absorption and stress resistance, the pressure-bearing device is a longitudinal shock-absorbing structure or a transverse shock-absorbing structure.

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