Abstract
With the development of our country economy, more and more super tall buildings are being built. While its beauties attract the attention of the people and they provide sufficient and comfort space to our people, it is very important to evaluate and its safety during severe earthquake. In this paper , the research method is studied for the tall structures during severer earthquake based on the design experience and research of tall structures. Based on the mechanical and deformation characteristic of this tall structure, the bottom stories and stories above the strengthened ones are selected as the "key stories" to control the performance of the building. The structure is replaced by an equivalent single degree of freedom system corresponding to each mode and each equivalent displacement is determined using the proposed method.
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