Method for constructing cast-in-place beam falsework

Abstract

The invention belongs to the technical field of construction of cast-in-place beam falseworks in bridge engineering, particularly relates to a method for constructing a cast-in-place beam falsework, and aims to solve the problems of long construction period, high construction cost, resource waste and the like caused by construction with a falsework method after foundation treatment, which must be used in certain specific geological or construction environments. The method comprises the following steps of: manufacturing an assembled symmetrical inclined leg device; treating a soft foundation, and constructing a strip-type concrete foundation on the upper part of the soft foundation; and mounting the assembled symmetrical inclined leg device on the strip-type concrete foundation, and connecting a double-assembled section steel main beam, a bailey beam, a square timber and a bottom die on the top of an adjusting system, and adjacent steel pipe upright columns by using channel steel. The method has the advantages that the structure is flexible, resources are saved, the construction cost is reduced, a support is convenient to dismount and mount, the construction progress is accelerated, the range of foundation treatment can be reduced, and the construction cost and security risk in construction are reduced.

Description

technical field [0001] The invention belongs to the technical field of construction of cast-in-place girder frames in bridge engineering, and in particular relates to a construction method of cast-in-place beam frames. Background technique [0002] At present, in the construction of cast-in-place continuous beams and cast-in-place continuous rigid structures for railways and highways, the full-wall support method or the steel pipe frame method is used for construction. In special cases (such as crossing a road, crossing a river or in a soft ground area), the full house support method cannot meet the site requirements. At this time, the steel pipe frame method is more common. However, in some special geological or construction environments, such as coastal areas such as Zhejiang, Jiangsu, and Guangdong, as well as bridges across rivers, there are very thick soft soil layers with extremely low bearing capacity. Treat the foundation to ensure the construction of the main proje...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of long construction period, high construction cost and waste of resources caused by the need to adopt the foundation treatment post-framing method in some special geological or construction environments, so as to minimize the construction of the post-framing method. For the purpose of foundation treatment or no foundation treatment during construction, a construction method of cast-in-place beam frame is provided

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