Tsunami has become an essential issue for disaster prevention of highway in Japan.A research project for studying tsunami effect acted on bridge structure and capacity ofbridge system for resisting tsunami has been initiated in Center for Advanced EngineeringStructural Assessment and Research (CAESAR), Public Works Research Institute (PWRI).This research project includes flume tests on bridge model for investigating tsunami effectacted on bridge structure, loading tests on model of entire bridge system and analyticalstudies on actual bridges for investigating capacity of bridge system for resisting tsunami.This paper introduces a brief report on the research results up to now. |