Damping device for widening construction of arched bridge

Abstract

The invention discloses a damping device for widening construction of an arched bridge, and relates to the technical field of arched bridges. The damping device for widening construction of the arched bridge comprises an external mounting mechanism used for external mounting, a thermal expansion and cold contraction mechanism used for thermal expansion and cold contraction according to the temperature, an elastic attaching mechanism used for elastic attaching, an elastic shaking mechanism used for elastic shaking, and a shaking damping mechanism used for shaking and damping; wherein a damping plate is arranged in the external mounting mechanism, and a thermal expansion and cold contraction mechanism is arranged in the external mounting mechanism through the damping plate. According to the damping device for widening construction of the arched bridge, the two springs are installed in the damping plate, vibration on an old bridge can be damped, the mercury bin is changed according to temperature changes, when the temperature is high, the solidification speed of concrete is high, high elasticity is not needed for damping, and therefore the elasticity is reduced and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to the technical field of arch bridges, in particular to a vibration damping device for widening construction of arch bridges. Background technique [0002] According to the design content, the bridge construction process 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 the capacity of roads is seriously insufficient. The widening and reconstruction of the arch 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 the renovation project of old arch bridges, cast-in-place sections are often used for widening. When there is traffic load on t...

AI Technical Summary

Problems solved by technology

[0003] At present, in the renovation project of old arch bridges, cast-in-place sections are often used for widening. When there is traffic load on the old bridge, the old bridge will vibrate, and there will be a deflection difference between the old and new bridges, which will affect the quality of cast-in-place concrete. have a more serious impact

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