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Generation of Artificial Time History Covering Design Response Spectrum by Two Modification Functions
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 Title & Authors
Generation of Artificial Time History Covering Design Response Spectrum by Two Modification Functions
Park, Gun; Hong, Ki Nam; Han, Sang Hoon; Kim, Jae Suk;
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The domestic and foreign seismic design codes have specified that time history covers design response spectrum when the response spectrum, which calculated from the time history, is smaller than the design response spectrum at five points or less. In order to verify the design codes, time history analysis for a pier was performed by using five artificial time histories conforming design code with various characteristics and its member forces were evaluated according to them. It was confirmed from analysis results that, regardless of the conformity to design code requirement, seismic design using the artificial time histories could not guarantee earthquake resistant design if the response spectrum from them is lower than design response spectrum at the similar period to the natural frequency of structure. Thus, the time history generating method to make its acceleration response spectrum to be greater than design response spectrum at all period was proposed by two modification function in this study. It was also verified whether time histories from the proposed method satisfy the seismic design codes or not.
Artificial time history;Design response spectrum;Seismic design;Modification function;
 Cited by
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