Bridge rotation device and bridge rotation construction method

Abstract

The invention relates to a bridge rotation device and a bridge rotation construction method. The rotation device comprises a spherical bearing, a bracket and a track, wherein the spherical bearing is arranged at the bottom of one end of a bridge; the bracket is fixed on one end of the bridge provided with the spherical bearing; the track is in the shape of a circular arc and takes the spherical bearing as the circle center; and a flexible cable or a rigid member is arranged between the top end of the bracket and the bridge. In addition, the rotation device is provided with a lift winch, the flexible cable on the lift winch is connected at the top end of the bracket, and the flexible cable passes through a main sliding location element which is arranged on the track and slides along the track or the winch to be directly installed on a main sliding platform on the track. Besides, the rotation device comprises a rotation driving device for driving the bridge to rotate additionally. The rotation device can ensure that the bridge can not swing in the rotation process, so as to enable the bridge to stably rotate, thereby saving the cost and being used repeatedly.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, in particular to a bridge swivel device and a bridge swivel construction method. Background technique [0002] During the construction process of the bridge, especially when it is closed, in order to ensure the safety of the roads, railways, rivers and waterways crossed by the bridge, partial navigation measures must be taken, which will inevitably affect the normal safety and smoothness of the waterway, and it is easy to Cause channel blockage; or take measures to seal roads or railways, which will not only affect normal traffic, but also affect the safety and progress of the project itself. In order to not only ensure the safety of engineering construction, but also minimize the impact on the smooth flow of waterways, shorten the time for sealing navigation and line closures, and reduce construction costs, bridge swivel technology has emerged as the times require. [0003] The brid...

AI Technical Summary

Problems solved by technology

This causes the turntable not to be reused, resulting in a waste of resources

In addition, although the swivel construction has the advantages of fast speed and low cost compared with the traditional suspension assembly method, truss cantilever construction method, and erection method, the structure of the turntable is slightly more complicated, and in order to obtain a larger torque, the turntable The diameter is also larger, so the cost of the turntable itself is higher

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