Pushover Analysis Of Complex High-rise Framework Structure Under The Action Of The Rare Earthquake

With the continuous prosperity and development of China's economic,the pace of development of city is accelerated and urban population is explosive growing, land resources become increasingly tense.So many high price land emerge around. Based on the scarcity of urban land resources, high-rise buildings are more popular. Because of high-rise building need less land area with more building area, the construction unit to pursue more building area, make the high-rise building structure emerge everywhere, even transfinite over-limited tall building. At the same time, high-rise building has complex structure, the loss is too large under seismic damage, and so seismic design required special attention.In order to meet the requirements of all special architectural function or larger building area, high-rise structure most belong to irregular structure, therefore, performance-based seismic design has been as the main building seismic design methods to high-level and even transfinite building. At present, the structure of the elastic-plastic analysis has become an important part for seismic design.At the first, the thesis reviewed the proposed and development situation static elasto-plastic method,introduced the basic principles and research methods on performance-based seismic design and static elasto-plastic method,discussed commonly used static elasto-plastic method and its advantages and disadvantages. Finally, Chuang Tiantong Depot High-rise structure as the research background, exploreing the structure of complex high-rise framework structure under rare earthquake by static elasto-plastic analysis,with the use of finite element analysis software ABAQUS, whose results for static elasto-plastic analysis provide the basis for the definition of the plastic hinge.So we can assess the seismic performance of high-rise structures.This article seeks to analysis and research on transfinite high-rise structure, acquires the design requirements and methods, in-depth knowledge and understanding, to provide a basis for the design and review of transfinite high-level structure, and also lay the foundation for the future research.