Delay connection installation method for outrigger of super high-rise building in steel frame-core tube structure

Abstract

The invention discloses a delay connection installation method for an outrigger of a super high-rise building in a steel frame-core tube structure. A constructed super high-rise building is in a steel frame-core tube structure which comprises a core cylinder and a peripheral frame located on the outside of the core tube, and a core cylinder in a outrigger reinforcing layer is connected with a frame column through an outrigger; the outrigger comprises an upper chord member, a lower chord member and a plurality of web members; when the outrigger in the outrigger reinforcing layer is installed, a delay connection method is used for installation, the installation process comprises the steps that I, temporary connection of the chord members; II vertical deformation monitoring: strain of the core tube and the frame column which are connected by the two chord members in the vertical direction is monitored; III, chord member stress release and fixed connection; IV, web member installation. According to the delay connection installation method for the outrigger of the super high-rise building in the steel frame-core tube structure, the steps are simple, the design is reasonable, the operation is easy and convenient, the use effect is good, and the problem that early failure of the outrigger is caused due to vertical deformation difference of the frame column and the core tube can be effectively solved.

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 ...

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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

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