Time-frequency response spectrum of rotational ground motion and its application |
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| Authors: | Wei Che Qifeng Luo School of Engineering & Technology China University of Geosciences Beijing China |
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| Institution: | Wei Che 1 , Qifeng Luo 2,1 School of Engineering & Technology,China University of Geosciences,Beijing 100083,China 2 Shanghai Institute of Disaster Prevention , Relief,Tongji University,Shanghai 200092,China |
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| Abstract: | The rotational seismic motions are estimated from one station records of the 1999 Jiji (Chi-Chi), Taiwan, earthquake based on the theory of elastic plane wave propagation. The time-frequency response spectrum (TFRS) of the rota-tional motions is calculated and its characteristics are analyzed, then the TFRS is applied to analyze the damage mechanism of one twelve-storey frame concrete structure. The results show that one of the ground motion components can not reflect the characteristics of the seismic moti... |
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