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چکیده
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Engineering systems and facilities are often designed using linear elastic analysis.To analyze the horizontal loads caused by design earthquakes,coefficients Used to take order. the system's coancempli into account.Even when elastic analysis is well appreciated for elastic energy of the system and indicates the location of the The first yield region, the mechanism of collapse is not expected, and the forces are not redistributed after yielding(4). As scientific and technological progress has progressed, the methods of analyzing and designing structures have evolved, and the procedures for designing and evaluating seismic performance have become standardized and better reflect the elastic-plastic behavior of structures.The most popular seismic analysis methods include linear static analysis and linear dynamic analysis, both of which are considered flexible analyses(5). As well as those, there is nonlinear static analysis as well as nonlinear dynamic analysis.By identifying the patterns of collapse, a nonlinear analysis helps engineers understand the behavior of structures subject to strong ground movements, where resulting energy is greater than the elastic energy of the structure(6). Research Objective(s) - 1 seismic loads and their impact, which has become more prevalent since the unprecedented earth shaking this last few years. 2- To identify different factors that can affect the building after construction such as removing part of the construction and compensating for other elements or adding construction elements. 3. To take into account nonlinear behavior of materials, including cracking and smashing of concrete, and submission to rebar and iron threshold, during analysis
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