Method for improving construction efficiency of full-rotation bridge girder erecting machine

Abstract

The invention relates to a method for improving the construction efficiency of a full-rotation bridge girder erecting machine. The method comprises the following steps that 1, four transverse distribution beams are arranged on a steel beam, and the transverse distribution beams are fixed on a steel beam chord; 2, a track beam is longitudinally arranged on the transverse distribution beams along the bridge, and the track beam can longitudinally move along a bridge on the transverse distribution beams; 3, the bridge girder erecting machine is installed in place, and is supported on the first distribution beam and the second distribution beam, and erection construction is performed on a section bridge panel; 4, after the section bridge panel is erected, the bridge girder erecting machine moves forwards along the track beam and is supported on the third distributing beam and the fourth distributing beam, the track beam is forwards moved, and meanwhile, the first distributing beam and the second distributing beam are hoisted to the corresponding position of the next section through the bridge girder erecting machine; and 5, the step 4 and the step 5 are repeated, and rest bridge deck panels are continuously erected. The method has the advantages that the problem that the bridge girder erecting machine cannot walk in place at one time at different steel beam joints and different spansteel beams can be solved, the construction work efficiency is improved, the aerial work time is shortened, and the construction risk is reduced.

Description

technical field [0001] The invention relates to the field of bridge deck system construction, in particular to a method for improving the construction efficiency of a full-turn bridge erecting machine. Background technique [0002] The Pingtan Strait Road-Railway Bridge is the first cross-strait road-railway bridge in my country. The Strait Bridge is different from the Bay Bridge built in the past. Its construction faces harsh conditions such as strong winds, high waves, surges, strong typhoons, and complex geology. The construction of the bridge brought great challenges and high risks. This bridge is the first attempt in the field of cross-strait bridges in China. Whether it is the harshness of the environment, or the technical challenges and construction risks it faces, it is far superior to other cross-sea bridges that have been built or are under construction in China. The Pingtan Strait Highway-Railway Bridge is the first time in the world to build a Strait Bridge in ...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the conventional method is that: there are many types of internode lengths of steel girders, and beams of different spans are connected to each other. As a result, when the bridge erecting machine is running, the track beam cannot be moved in place at one time, and it needs to be moved forward alternately with the bridge erecting machine multiple times. The design position and steps are cumbersome, which restricts the construction period of the bridge deck erection and increases the construction risk

Images