Shock-absorbing device for bridge widening construction

Abstract

The invention discloses a shock-absorbing device for bridge widening construction, and relates to the technical field of bridge construction. The shock-absorbing device comprises a fixing mechanism, and a fiber mechanism is arranged at the upper part of the fixing mechanism. The fixing mechanism comprises a tension spring, a first sliding block, push plates, a fixing column, a bearing, limiting grooves, inclined blocks, a first sliding groove, limiting rods, a cavity, a threaded rod, a loop ring, an old bridge, a press plate, a groove, a new bridge, a push rod, a roller and channel steel. According to the shock-absorbing device for the bridge widening construction, during use, a worker turns the threaded rod, so that the loop ring drives the press plate to move down to simultaneously pressthe new bridge and the old bridge, and therefore the first step fixation is achieved; then, the press plate pushes the push rod to move down, so that the push rod extrudes the inclined blocks and thetwo inclined blocks approach each other, two push plates push two groups of limiting rods to be inserted into two groups of limiting grooves, and therefore the second step fixation for the new bridgeand the old bridge is achieved; thus, the whole can enable the new bridge and the old bridge to bear force together, and the deflection difference between the new bridge and the old bridge is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a damping device for bridge widening construction. Background technique [0002] Bridge construction is the process of building a bridge according to the design content; it mainly refers to bridge construction technology, construction organization, construction management, construction quality, etc. The traffic volume in my country has increased sharply, traffic congestion in various places has intensified, and road traffic capacity is seriously insufficient. The widening and reconstruction of the bridge can improve the traffic capacity of the old bridge, which can not only effectively alleviate the phenomenon of traffic congestion, but also prolong the service life of the old bridge, which has good economic and social benefits. [0003] At present, in old bridge reconstruction projects, cast-in-place sections are often used to realize the connection between the old an...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to make up for the deficiencies in the prior art, and to provide a shock absorbing device for bridge widening construction, which has the function of enabling the new bridge and the old bridge to bear force together, and reducing the deflection difference between the new bridge and the old bridge. It solves the problem that when there is traffic load on the old bridge, the old bridge will vibrate, and there will be a difference in deflection between the old and new bridges

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