| Summary: | 碩士 === 國立臺灣大學 === 土木工程學研究所 === 89 === The object of this paper is to investigate the aseismic capacity of the high-rise steel frames considering the effect of composite beam by Pseudo-elastic method. By using the principle of energy conservation to transfer the energy which exceeding the elastic range into plastic energy, the nonlinear behavior of the structure, and the aseismic capacity of the structure will be figured out.
There are several procedures to analyze steel frames. Firstly, the structure will be analyzed linearly by adopting ETABS software, and the member’s force is carried out. Then enlarge the lateral force of earthquake. After the first plastic hinge appeared, the steel frame will perform inelastically. The nonlinear response can be figured out by using Pseudo-elastic method from linear analysis. Finally, the yielding lateral force, ultimate lateral force, ductility, and collapsed ground acceleration can be determined.
By using ETABS software and Pseudo-elastic method, three examples of code-based high-rise steel frame under the same arrangement of frame are analyzed in this thesis. And the influence of composite beam can be figured out.
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