Double-blade vertically-rotating type movable bridge and construction method

Abstract

The invention discloses a double-blade vertically-rotating type movable bridge and a construction method, the double-blade vertically-rotating type movable bridge comprises two symmetrically-arranged single-side bridge bodies, each single-side bridge body comprises a bridge pier, a bearing seat, a hydraulic oil cylinder, a middle locking device and a bridge body steel structure, and each bridge body steel structure is formed by splicing a balance weight section, a bearing section and a cantilever section. Each bridge body steel structure is formed by splicing the corresponding balance weight section, the corresponding bearing section and the corresponding cantilever section, when the bridge body steel structure is installed, the corresponding balance weight section, the corresponding bearing section and the corresponding cantilever section are installed in a segmented mode, smooth construction of the movable bridge can be ensured, and the influence on channel passing can be reduced to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of open bridges, in particular to a double-leaf vertically rotating open bridge and a construction method. Background technique [0002] The open bridge is a relatively old type of bridge. The country with the most open bridges in the world is the United States. So far, there are nearly 3,000 open bridges. The number of open bridges built in China is relatively small, and the number of open bridges for heavy-duty traffic is even less. When the land transportation is not very busy, there are ships sailing on the river and the fixed bridge cannot be built above the navigation clearance, it is necessary to build an open bridge to solve the water and land traffic. There are many types of open bridges. One is the flat-rotating open bridge, which connects the two-hole bridges and installs a machine on the pier between the two holes to make the two-hole bridges rotate 90 degrees around the pier on the water surface...

AI Technical Summary

Problems solved by technology

[0003] The vertical-rotating opening bridge is easy to open, and naturally forms a column when opening, which is conducive to the safety protection of passing vehicles. However, due to the limitation of the balance weight, the span of the opening hole beam is larger than that of the above-mentioned other opening bridges, and the beam structure is huge and complicated. It will bring great difficulties to the construction of the open bridge, and the construction will have a great impact on the passage of the channel

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