Construction method of multi-storey section steel-stay cable three-dimensional support ultra-large span cast-in-situ cantilever beam

Abstract

The invention relates to a construction method of a multi-storey section steel-stay cable three-dimensional support ultra-large span cast-in-situ cantilever beam. The construction method is characterized by comprising constructing typical floors, mounting overhung section steel, constructing a stay cable, mounting a support rod piece, setting up a construction platform, constructing a scaffold anda large-span cantilever beam and dismantling the construction platform. The stay cable, overhung type steel beams with different lengths, the vertical support rod piece, a slant rod and a longitudinal connecting rod are combined and connected to form a triangular truss support structure; the construction load is distributed in a 4-6 storey structure; the support structure is reliable in form andthe bearing force meets the requirement; a U-shaped anchor ring, a hoisting ring and other fixing parts involved in the support structure are mounted through a beam body and a floor plate pre-embeddedPVC pipe; the support structure is convenient to mount and dismantle; after construction of the cantilever beam, all materials can be recycled, and higher economical and social benefits are realized.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for a super-large-span cast-in-place cantilever beam supported by multi-layer section steel-cable three-dimensional support. Background technique [0002] With the diversity of modern architectural design functions, in order to meet the high-altitude visual effect of the facade and meet the requirements of a large indoor area, the long-span cantilever structure has become one of the important technical means to realize the unique architectural design; but in large In the construction of span cantilever beams, there are many construction problems such as difficulty in supporting formwork at high altitude, unstable support, and high construction difficulty, which lead to local deformation or tilting in the construction of concrete structures. Contents of the invention [0003] The purpose of the present invention is to solve the problems existi...

AI Technical Summary

Problems solved by technology

[0002] With the diversity of modern architectural design functions, in order to meet the high-altitude visual effect of the facade and meet the large-area requirements of the interior, the long-span cantilever structure has become one of the important technical means to realize the unique architectural design; but in large In the construction of span cantilever beams, there are many construction problems such as difficulty in supporting the formwork at high altitude, unstable support, and high construction difficulty, which leads to local deformation or tilting in the construction of concrete structures.

Images