Construction method for mixed structure of steel structure and reinforced concrete

Abstract

The invention relates to a building construction method, and especially relates to a construction method for a mixed structure of a steel structure and reinforced concrete. The method includes the following operation steps: S1. a moulding bed is installed, including pre-embedding of an embedded part, and pouring of a bottom plate; S2. installation and construction of the steel structure are performed, including installation of core tube steel frames on both sides, the installation of an atrium conversion truss, and reinforcement of a core tube joint area that are performed in order; S3. unloading of a supporting moulding bed is performed; wherein, when the installation of the core tube steel frames on the both sides is performed, a temporary supporting moulding bed is installed, and afterconcrete is poured to a predetermined height, the temporary supporting moulding bed is dismounted layer by layer; and after the atrium conversion truss is installed, construction of lower reinforced concrete is carried out, and then the reinforcement of the core tube joint area is performed. Through the installation of the temporary supporting moulding bed, a supporting system and the steel structure itself, the construction method forms an independent stable structural system, which is "first the steel structure and then the reinforced concrete", and effectively solves the problem of large construction difficulty of the special mixed structure of the steel structure-the reinforced concrete.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for a steel-reinforced-concrete mixed structure. Background technique [0002] The number of high-rise buildings in our country is increasing day by day. The scale of high-rise buildings is getting bigger and bigger, the height is getting higher and higher, the shape is more and more complex, and the functions are constantly integrated. The hybrid structure has structural properties that a single structure does not have, and the comprehensive properties and special properties of the structural system after a variety of structures are rationally and orderly "mixed". At present, high-rise buildings have different functions for different floors at different heights, and the lower buildings need as large an indoor space as possible to meet the functional requirements of public facilities; the transfer truss in the steel structure and reinforced concrete hybrid s...

AI Technical Summary

Problems solved by technology

At present, high-rise buildings have different functions for different floors at different heights, and the lower buildings need as large an indoor space as possible to meet the functional requirements of public facilities; the transfer truss is the most commonly used in high-rise buildings to achieve functional conversion in steel structures and reinforced concrete hybrid structures For special functional requirements, a special transfer truss needs to be installed. Among them, the giant transfer truss is an important direction for the development of domestic high-rise arrowhead structures. However, the construction of special steel structure-reinforced concrete hybrid structures is difficult at present. The traditional construction method has high cost and low efficiency, so a construction method with low cost and better application to special steel structure-reinforced concrete mixed structure construction is needed