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Site‐specific response spectra developed by considering near‐fault motion with finite‐fault simulation in Taiwan
https://orcid.org/0000-0002-2104-5625
https://orcid.org/0000-0002-9014-1303
https://orcid.org/0000-0002-6791-3790
https://orcid.org/0000-0003-1007-5041
AbstractA new methodology is proposed for developing a scenario‐based site‐specific response spectrum (RS) considering near‐fault effects in Taiwan. First, source parameters, together with reference rock site conditions, are defined according to the available geological and geophysical information at a target site close to a potential active fault in northern Taiwan. Secondly, the scenario‐based response spectrum for a reference rock site condition is developed theoretically through an empirical approach by using a ground motion prediction equation (GMPE). The effect of the pulse period and the occurrence probability of near‐fault pulse‐like ground motion on RS is evaluated by using the ground motion simulation (GMS) technique, in which the stochastic finite‐fault simulation method is validated and applied for evaluating velocity pulse. Third, site‐specific site amplification is incorporated into RS through a site transfer function calculated from the measured horizontal‐to‐vertical Fourier spectral ratio through the microtremor (MHVR) of the target site. Finally, the design spectrum of the target site is compared with the derived site‐specific RS to evaluate the impact of the neighbor fault on the structure of the target site.
Site‐specific response spectra developed by considering near‐fault motion with finite‐fault simulation in Taiwan
https://orcid.org/0000-0002-2104-5625
https://orcid.org/0000-0002-9014-1303
https://orcid.org/0000-0002-6791-3790
https://orcid.org/0000-0003-1007-5041
AbstractA new methodology is proposed for developing a scenario‐based site‐specific response spectrum (RS) considering near‐fault effects in Taiwan. First, source parameters, together with reference rock site conditions, are defined according to the available geological and geophysical information at a target site close to a potential active fault in northern Taiwan. Secondly, the scenario‐based response spectrum for a reference rock site condition is developed theoretically through an empirical approach by using a ground motion prediction equation (GMPE). The effect of the pulse period and the occurrence probability of near‐fault pulse‐like ground motion on RS is evaluated by using the ground motion simulation (GMS) technique, in which the stochastic finite‐fault simulation method is validated and applied for evaluating velocity pulse. Third, site‐specific site amplification is incorporated into RS through a site transfer function calculated from the measured horizontal‐to‐vertical Fourier spectral ratio through the microtremor (MHVR) of the target site. Finally, the design spectrum of the target site is compared with the derived site‐specific RS to evaluate the impact of the neighbor fault on the structure of the target site.
Site‐specific response spectra developed by considering near‐fault motion with finite‐fault simulation in Taiwan
https://orcid.org/0000-0002-2104-5625
https://orcid.org/0000-0002-9014-1303
https://orcid.org/0000-0002-6791-3790
https://orcid.org/0000-0003-1007-5041
AbstractA new methodology is proposed for developing a scenario‐based site‐specific response spectrum (RS) considering near‐fault effects in Taiwan. First, source parameters, together with reference rock site conditions, are defined according to the available geological and geophysical information at a target site close to a potential active fault in northern Taiwan. Secondly, the scenario‐based response spectrum for a reference rock site condition is developed theoretically through an empirical approach by using a ground motion prediction equation (GMPE). The effect of the pulse period and the occurrence probability of near‐fault pulse‐like ground motion on RS is evaluated by using the ground motion simulation (GMS) technique, in which the stochastic finite‐fault simulation method is validated and applied for evaluating velocity pulse. Third, site‐specific site amplification is incorporated into RS through a site transfer function calculated from the measured horizontal‐to‐vertical Fourier spectral ratio through the microtremor (MHVR) of the target site. Finally, the design spectrum of the target site is compared with the derived site‐specific RS to evaluate the impact of the neighbor fault on the structure of the target site.
Site‐specific response spectra developed by considering near‐fault motion with finite‐fault simulation in Taiwan
Earthq Engng Struct Dyn
Huang, Jyun‐Yan (author) / Chao, Shu‐Hsien (author) / Lin, Che‐Min (author) / Chou, Chung‐Che (author) / Loh, Chin‐Hsiung (author) / Wu, Chiun‐Lin (author)
Earthquake Engineering & Structural Dynamics ; 53 ; 968-991
2024-02-01
Article (Journal)
Electronic Resource
English
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