| Title |
Generation of Artificial Time History Covering Design Response Spectrum by Two Modification Functions |
| Authors |
박건(Park, Gun) ; 홍기남(Hong, Ki Nam) ; 한상훈(Han, Sang Hoon) ; 김재석(Kim, Jae Suk) |
| DOI |
https://doi.org/10.12652/Ksce.2016.36.1.0001 |
| Keywords |
인공지진파;설계응답스펙트럼;내진설계;수정함수 Artificial time history;Design response spectrum;Seismic design;Modification function |
| Abstract |
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. |