Delayed connection installation method of outrigger truss in super high-rise steel frame-core tube structure

Abstract

The invention discloses a delayed connection installation method of an outrigger truss of a super high-rise steel frame-core tube structure. The outer frame of the outrigger truss reinforcement layer is connected between the core tube and the frame column through the outrigger truss; the outrigger truss includes two upper and lower chords and multiple webs; During installation, the delayed connection method is used for installation and the installation process is as follows: 1. Temporary connection of chords; 2. Vertical deformation monitoring: the vertical strains of the core tube and frame columns connected by two chords Monitoring; 3. Chord stress release and fixed connection; 4. Web installation. The method of the invention has simple steps, reasonable design, convenient operation and good application effect, and can effectively solve the problem of premature failure of the outrigger truss due to the vertical deformation difference between the frame column and the core tube.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a delayed connection installation method of a super high-rise steel frame-core tube structure outrigger truss. Background technique [0002] The core tube structure belongs to the high-rise building structure. To put it simply, the periphery is a frame force system composed of beams and columns, and the middle is a cylinder (such as an elevator shaft, etc.). Since the cylinder is in the middle, it is called the core tube, also known as the "frame-core tube structure". The peripheral frame is formed by connecting a plurality of frame columns and frame beams supported on the plurality of frame columns. The core tube is in the central part of the building. The central core tube is formed by elevator shafts, stairs, ventilation shafts, cable wells, public toilets, and some equipment room enclosures. It forms an outer frame and inner tube structure with the ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a delayed connection installation method of a super high-rise steel frame-core tube structure outrigger truss in view of the deficiencies in the above-mentioned prior art. The method has simple steps, reasonable design and easy operation. The use effect is good, and it can effectively solve the problem of premature failure of the outrigger truss due to the difference in vertical deformation between the frame column and the core tube

Images