Finite fault source model for ground motion near fault zone
2022
Qiu, Yuan | Ma, Haiying | Xia, Ye | Lai, Minghui | Turmo Coderque, José | Lozano Galant, José Antonio | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental | Universitat Politècnica de Catalunya. EC - Enginyeria de la Construcció
Ground motion is categorized into near fault zone and across fault zone where impulsive component is included. The impulsive component usually causes larger damage than that by far-fault ground motion. To build a Benchmark model platform for cable-stayed bridges across-fault region for comparative analysis, the paper proposes a way combining the finite fault source model. In the paper, the finite fault source model was conducted based on the site Qiongshan earthquake. After the geological structural parameters were determined, forward modeling of near site earthquake was carried out, and the observation points were obtained using numerical simulation. Then, the analysis results were compared with the pulse characteristic parameters of similar grade of recording ground motion. Additionally, the ground motion near-fault region was analyzed to validate the finite fault source model.
Show more [+] Less [-]The authors are indebted to research funding provided by the National Key R&D Program of China (2017YFC1500603), and to the Spanish Ministry of Economy and Competitiveness and FEDER funds for the funding provided through the research project BIA2017-86811-C2-1-R.
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