Manufacture method of energy-dissipating shear wall system of steel plate with weakened strength by heat treatment

Abstract

The invention discloses a steel plate energy dissipation shear wall system manufacturing method capable of adopting heat treatment to weaken strength. First, a body structure comprising frame columns and frame beams is constructed, after the top of the body structure is sealed, embedded steel plates of all steel plate shear walls are connected with fishplates, the embedded steel plates are carbon constructional steel plates obtained after heat treatment, the heat treatment process meets the following requirements that when the carbon constructional steel plates are made of Q235 steel plates, the yield strength is reduced by 24-31%, the limit strength is reduced by 10-12%, and the yield ratio is 0.49-0.54; when the carbon constructional steel plates are made of Q345 steel plates, the yield strength is reduced by 38-41%, the limit strength is reduced by 30-32%, and the yield ratio is 0.64-0.65. The common steel is adopted as the raw material and used for manufacturing shear walls after heat treatment, the shear walls have good performance similar to that of low-yield-point steel plate shear walls, manufacturing is convenient, and the raw material is common, easy to obtain and high in economical efficiency.

Description

technical field [0001] The invention relates to a shear wall in a building structure, in particular to a manufacturing method of a steel plate energy-dissipating shear wall system whose strength is weakened by heat treatment. Background technique [0002] In the design of high-rise building structures, in order to improve the lateral performance of the structure, shear walls are often set up in some specific parts of the structure, so as to effectively resist the horizontal wind load and horizontal earthquake. The commonly used shear walls mainly include reinforced concrete shear walls and steel plate shear walls. Steel plate shear walls have been widely used due to their convenient construction and high performance. [0003] The steel plate shear wall system is a lateral force-resistant structural system with steel frames and embedded steel plates as the basic structural units. From the structural point of view, it can be regarded as a cantilever plate beam structure: the ...

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Problems solved by technology

However, the price of steel with low yield point is relatively high, and only a few specific manufacturers can produce this new type of steel, which limits the development of this shear wall system.

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