A Modified Capacity Spectrum Method with Direct Calculation of Seismic Intensity of Points on Capacity Curve |
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| Authors: | Wu Jing Liang Renjie Wang Chunlin Zhou Zhen |
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| Institution: | 1. The Key Laboratory on Concrete and Prestressed Concrete Structures of Ministry of Education of China , Southeast University , Nanjing, China;2. International Institute for Urban Systems Engineering , Southeast University , Nanjing, China seuwj@seu.edu.cn;4. The Key Laboratory on Concrete and Prestressed Concrete Structures of Ministry of Education of China , Southeast University , Nanjing, China;5. International Institute for Urban Systems Engineering , Southeast University , Nanjing, China |
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| Abstract: | A direct methodology for solving the seismic intensity of each point on the capacity curve is proposed. By utilizing the procedure, a continuous curve between the structural response and the seismic intensity, the structural response function, can be easily generated. Unlike previous procedures that search for the performance point of a determined seismic intensity, the proposed methodology easily draws the full curve without iterations. The procedure is applicable to both a smooth design spectrum and an actual response spectrum. Examples indicate the methodology is accurate and fast, and convenient to be combined with existing procedures, such as Modal Pushover Analysis. |
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| Keywords: | Nonlinear Static Procedure Next-Generation Performance-Based Seismic Design Seismic Intensity Structural Response Function Performance Point Capacity Spectrum Method |
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