Construction method applicable to steel member gliding assembling in narrow spaces

Abstract

The invention discloses a construction method applicable to steel member gliding assembling in narrow spaces. The single span of steel members is greater than 100 m, the mass of the steel members is greater than 100 t, and the narrow spaces comprise small operating construction spaces such as spaces close to railway construction and complex urban environments caused by construction conditions. The gliding construction method comprises the steps that a lower portion buttress support system is completed according to a conventional construction method, and then a gliding device comprising distributive girders, a bailey truss, gliding rails and gliding trolleys is established at the top of the buttress support system; and a crane is adopted for hoisting the steel members to the gliding trolleys, and the gliding device is utilized for gliding steel member boxes to mounting positions. By adoption of the construction method, influence of construction of projects with complex construction environments and conditions mainly on the surrounding railway environment, municipal traffic and the land requisition and demolishing demand area can be reduced, and use of large hoisting equipment and special tools can be reduced; and meanwhile, the construction precision of assembling of steel box girders is guaranteed, and the mounting risk is lowered.

Description

technical field [0001] The invention relates to a construction method for sliding assembly of steel box girder components. Specifically, it is a reasonable, rapid, economical, safe and reliable construction method for steel box girder assembly, which belongs to the field of municipal bridge engineering. This method is suitable for the assembly construction of similar engineering steel box girders. Background technique [0002] With the development of China's economy and cities, urban functional divisions become more obvious, and traffic flow increases, but the available ground land resources are becoming more and more limited or even insufficient to support engineering construction. Originally, due to complex geological conditions or Insufficient site, complex surrounding environment and other factors to avoid areas, especially in the north where there are many tunnel bridges under the existing railway lines, and there are a large number of functional buildings in the surro...

AI Technical Summary

Problems solved by technology

[0004] The assembly of steel box girders on the support system that appeared in the early stage is under the condition that the working space is large and large-scale lifting equipment can be used, and dense supports need to be erected, but the project cost is relatively high

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