Framework for assessing probability of exceeding a specified liquefaction-induced settlement at a given site in a given exposure time |
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| Authors: | Chih-Chieh Lu Jin-Hung Hwang C Hsein Juang Chih-Sheng Ku Zhe Luo |
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| Institution: | aDepartment of Civil Engineering, Clemson University, Clemson, South Carolina 29634, USA;bDepartment of Civil Engineering, National Central University, Jhongli, Taoyuan 32001, Taiwan;cDepartment of Civil and Ecological Engineering, I-Shou University, Kaohsiung 840, Taiwan;dDepartment of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan |
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| Abstract: | This paper presents a framework for assessing the probability of exceeding a specified liquefaction-induced settlement at a given site in a given exposure time. This framework deals not only with the effect of liquefaction (in terms of settlement) but also with probabilistic characterization of all possible ground motions at a given site (in terms of a joint distribution of amax and Mw). Additionally, a new concept, referred to herein as liquefaction-induced settlement hazard curve, is introduced for assessing the annual rate of settlement exceedance at a given site. This settlement hazard curve concept has the potential to be a very useful tool in the field of geotechnical earthquake engineering. Satisfactory results are obtained in the demonstration examples analyzed with the proposed framework. Whereas the proposed framework is simple and effective, further refinements to this framework, especially on the treatment of epistemic uncertainty, are warranted. |
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| Keywords: | Joint probability distribution Seismic hazards Liquefaction Settlement Standard penetration testing |
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