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Guidance on Seismic Site Response Analysis with Pore Water Pressure Generation

项目名称：	Guidance on Seismic Site Response Analysis with Pore Water Pressure Generation
摘要：	NCHRP Synthesis 428: Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions revealed that one-dimensional (1-D) equivalent-linear analysis is the de facto standard for state DOT highway facilities at those locations where site-specific ground response analyses are conducted in accordance with provisions in the AASHTO LRFD Bridge Design Specifications (2014) and the AASHTO Design Guidelines for Seismic Bridge Design (2011). However, users have concerns about the applicability of equivalent-linear analyses for the cases for which site-specific response analyses are most useful (i.e., soft soil sites, liquefiable sites, and sites subjected to very strong shaking). While nonlinear 1-D site response analyses are beginning to be used in practice to address these concerns, considerable uncertainty exists with respect to the appropriate manner in which to employ and interpret such analyses. To assist bridge and foundation designers, guidance on the use and selection of 1-D nonlinear software with pore water pressure generation is needed for the effective and economical seismic design of all types of highway structures. The objective of this research is to provide guidance on the use and selection of analytical methods for 1-D nonlinear seismic site response analysis with pore water pressures generation to quantify the effects of site-specific conditions on earthquake ground response. At a minimum, the guidance should consider the following: (1) input parameters required for the analyses (e.g., site characterizations, seismic loading); (2) limitation, selection, and validation of analytical methods; (3) the process of model setup; and (4) how to use the results of the analytical methods.
状态：	Active
资金：	640000
资助组织：	Federal Highway Administration
项目负责人：	Dekelbab, Waseem
执行机构：	GeoLogic Associates
主要研究人员：	Matasovic, Neven
开始时间：	20181108
预计完成日期：	20220107
实际结束时间：	0