Steel platform inner cylinder shelving bracket single shear wall pressure-bearing test rack and test method

Abstract

The invention provides a steel platform inner cylinder shelving bracket single shear wall pressure-bearing test rack and a test method. The device comprises a bottom plate, a shear wall, a counter-force frame system, a platform system, a loading system and a control system; the device can be used for a pressure-bearing local strength test of a core tube reinforced concrete shear wall structure ofa super high-rise building, and can be used for carrying out safety evaluation on a support system of an integral steel platform construction technology of the super high-rise building.

Description

technical field [0001] The invention relates to a pressure test frame and a test method for a single shear wall with corbels resting on the inner cylinder of a steel platform. Background technique [0002] my country's super high-rise building construction technology is ahead of the world. The completed Shanghai Center has a height of 632m, which is the second tallest building in the world. my country occupies half of the top ten high-rise buildings in the world. High-rise buildings, such as Beijing China Zun, Wuhan Greenland Center, Hefei Baoneng Center, etc. The construction of super high-rise buildings in my country mainly adopts two technical systems, the integral steel platform system and the hydraulic climbing formwork system. Among them, the integral steel platform is a super high-rise building construction technology system generally recognized by the construction industry in my country. It has been fully practiced in major projects such as the World Financial Center ...

AI Technical Summary

Problems solved by technology

[0003] In the construction of the core tube of a super high-rise building, the overall steel platform is generally raised by staged jacking or staged lifting. The shelving corbel system at the bottom of the platform inner tube scaffolding is transmitted to the concrete structure of the core tube. Since the structural strength and overall rigidity of the steel platform structure are relatively good, it can be considered that the main weak point of the steel platform system is at the position of the shelving corbel. There are also potential safety hazards in the local concrete structure of the core tube where the corbel contact force is transmitted

At present, the research on the bearing capacity and failure mode of the left corbel and the local pressure position of the concrete has not been fully carried out, and there are no mature experimental research methods and theoretical research results.

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