Abstract

In the design of high-rise steel structures in China, structural designers are willing to adopt the steel-concrete hybrid structure system, and the building height is getting higher and higher. The steel-concrete hybrid structure system has the advantages of fast construction speed of steel structure, high stiffness of concrete structure and low cost. It is considered to be a better structural form of high-rise buildings in line with China's national conditions. In earthquakes, the rapid release of energy from the earth's crust causes earthquakes. In the high-rise building system, reinforced concrete structure is the main form of building structure. Therefore, for the theoretical calculation model of this structural system, the relative displacement control between structural layers under the action of frequent earthquakes. And the research needs of structural failure modes under the rare earthquakes are becoming more and more urgent. In this paper, the seismic response analysis model of high-rise mixed structure is established based on the seismic design principle of hybrid structure, and the seismic behavior of high-rise steel-concrete hybrid structure under two-way seismic action is discussed.

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