Auxiliary construction method for longspan cantilever entire laminated Vierendeel truss structure

Abstract

The invention provides an auxiliary construction method for a longspan cantilever entire laminated Vierendeel truss structure. The method includes the steps that 1, a cantilever reinforced concrete Vierendeel truss is constructed; 2, a steel structure column temporary supporting system is constructed, wherein the system is composed of a plurality of steel structure columns, one steel structure column is erected at the position corresponding to a supporting column under each cantilever beam, each steel structure column is formed by connecting three sections of steel columns, and the installation process includes the steps of pasting a steel base plate on the first layer of floor, marking steel column installation locations on the steel base plate, hoisting the upper sections of steel columns to abut against the cantilever beams, hoisting the middle sections of steel columns to be in butt joint with the upper sections of steel columns, hoisting the lower sections of steel columns to be in butt joint with the middle sections of steel columns, enabling the steel structure columns to just fall off onto the steel column installation locations of the steel base plate, jacking up the steel structure columns to abut against the cantilever beams, enabling the gaps between the steel structure columns and the steel base plate to be filled with steel plates and conducting full welding; 3, laminated layers above the Vierendeel truss are continuously constructed; 4, the steel structure column temporary supporting system is removed. By the adoption of the method, the effectiveness and safety of constructing the entire laminated Vierendeel truss which is high in cantilever height and large in span can be guaranteed.

Description

technical field [0001] The invention relates to a building construction method, in particular to an auxiliary construction method adopted in the construction process of a large-span cantilever integral laminated vierendeel truss structure. Background technique [0002] With the development of high-rise buildings, setting transfer floors in high-rise buildings has become a major trend in modern buildings. Laminated vierendeel truss structures are more and more widely used due to their high rigidity, no diagonal members, and excellent space utilization. in the conversion layer structure. Vierendeel trusses are unique in obtaining architectural shapes and satisfying the use functions of buildings, so they are often preferred by some architects. In actual engineering design, the design of some tall buildings requires large overhangs on all sides starting from the third floor, the cantilever height is about 10m, and the cantilever span is about 6m. The conventional method is to ...

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Problems solved by technology

[0003] The purpose of the present invention is to propose an auxiliary construction method for a large-span cantilever integral laminated vierendeel truss structure, which can effectively solve the support problem of the truss structure in the construction process of the integral laminated vierendeel truss with a high cantilever height and a large cantilever span. Effectively control the disturbance and deformation of the truss structure during the construction process to ensure the effectiveness and safety of the truss structure construction

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