Bridge capable of automatically adjusting height along with rising of river water level and construction method thereof

Abstract

The invention discloses a bridge capable of automatically adjusting the height along with the rising of the river water level and a construction method thereof. The bridge is composed of a main beam and an approach bridge; the main beam is composed of a group of closed main beam box bodies, the front end and the rear end of the main beam box bodies are erected on a pier through supports capable ofautomatically adjusting the height through buoyancy of water; the upper ends of approach bridge plates of the approach bridge are hinged to the end parts of the bridge plates of the front main beam box body and the rear main beam box body of the main beam bodies, and the lower ends of the approach bridge plates can slide in supporting plate sliding grooves in a approach bridge bearing table through sliding wheels B. The construction method comprises the steps of manufacturing the main beam box bodies, manufacturing a lifting device, installing the main beam box bodies to form the main beam, constructing the approach bridge plates and the like. The bridge can automatically adjust the height along with the water level of rivers, has a self-locking function, the bridge not only cannot be submerged when the water level rises, but also can not bumpy along with the fluctuation of the water level up and down; and the normal height of the main beam can be recovered after the water level is reduced; and the bridge does not need too high piers, and the engineering cost is relatively low.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, in particular to a bridge whose height can be automatically adjusted as the water level of a river rises and a construction method thereof. Background technique [0002] In flood-prone mountainous areas, some rivers surge in water levels during flood seasons. The rapid rise in water levels can submerge or even destroy bridges, disrupting roads in mountainous areas and preventing villagers from communicating with the outside world. [0003] At present, there are two kinds of bridges built on this river course: one is a bridge with a fixed height, which accounts for the majority; the other is a pontoon bridge, which accounts for a minority. [0004] Fixed-height bridges are divided into bridges that cannot overflow the bridge deck during the highest water level in the flood season and overflow bridges that can overflow the bridge deck according to their height. [0005] For flood bridg...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a bridge that can automatically adjust its height with the rise of the river water level and its construction method, so as to solve the above-mentioned technical problems existing in the existing bridges

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