Affiliation:
1. National Center for Research on Earthquake Engineering Taipei Taiwan
2. Department of Civil Engineering National Taiwan University Taipei Taiwan
Abstract
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.
Subject
Earth and Planetary Sciences (miscellaneous),Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering
Reference52 articles.
1. Central Geological Survey (CGS).Taiwan fault distribution map. (https://faultnew.moeacgs.gov.tw/About/Fault_map).2021.
2. Construction and Planning Agency Ministry of the Interior (CPAMI).Seismic design specifications and commentary of buildings of Taiwan (in Chinese). (https://www.cpami.gov.tw/home.html).2011.
3. Seismic amplification maps of Italy based on site-specific microzonation dataset and one-dimensional numerical approach
4. From Ergodic to Region- and Site-Specific Probabilistic Seismic Hazard Assessment: Method Development and Application at European and Middle Eastern Sites