Assessment and Mitigation of Liquefaction Hazards to Bridge Approach Embankments in Oregon, Appendix

摘要

The following catalog documents the seismic performance of bridges and ancillary components in the presence of liquefaction-induced ground displacements. Data pertaining to seismological, geotechnical, and structural aspects of numerous case studies are presented in order to facilitate the development of empirical guidelines for the identification of vulnerable foundation and bridge elements. Each bridge in this catalog has been assigned a subjective damage severity rating (DSR) according to the classification scheme outlined in Table A.1. The classification scheme was developed in order to categorize bridge foundation displacements and the resulting damage into four degrees of severity. This classification scheme does not explicitly provide a causal relationship between the various seismic hazards and the mode of observed damage, it is however useful for documenting the pertinent characteristics of the earthquakes, site characteristics and the associated damage.