Integral jacking method for steel roof frame and concrete column articulated factory house cover

Abstract

The invention discloses a method for integrally jacking a factory building roof formed by hinging a steel roof truss and concrete columns. The method comprises the following steps: using the concrete columns of the factory building as jacking supporting members, and using corbels welded on the jacking supporting members as jacking supporting points; making use of a jacking device and a force transmission beam assembly which are placed on the corbels as a force application mechanism and a force transmission mechanism respectively so that the jacking force is transferred to a jacking member connected with the force transmission beam assembly; then jacking the factory building roof through the jacking member until the factory building roof reaches the required height; and finally, fixedly connecting the superposed parts of the bottom of the jacking member and the concrete columns to finish the jacking process. The jacking method has the advantages of simple construction process, short construction period, good safety, small investment, and the like.

Description

technical field [0001] The invention belongs to the technical field of house reconstruction, and in particular relates to a construction method for heightening a workshop in which steel roof trusses and concrete columns are hinged. Background technique [0002] There are two existing methods for raising the height of a factory building in the form of steel roof trusses and concrete columns hinged. One is the demolition method, that is, the original roof is removed first, then the concrete columns are heightened, and then a new roof is redone on the heightened concrete columns. The disadvantage of this method is that the investment is large, the construction period is long, and the equipment and structures in the plant need to be removed. The other is the overall jacking method of the dynamic point roof. This method is to first build a jacking support member in the factory building, and then use a jack to lift the steel roof truss on the support member, then increase the hei...

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that it is necessary to build a temporary supporting member for lifting, which takes a lot of materials and labor; second, due to the limitation of the small stroke of the jack, after each stroke of the jack is lifted, the roof truss base needs to be temporarily padded to move the jack up. After the height of one stroke is reached, the jacking of the next stroke is carried out. In this way, the jack needs to be moved up frequently, and the location of the jacking operation is constantly changed, which is not convenient for jacking up

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