ANALYTICAL STUDY ON ACCIDENT OCCURRENCE RATE OF RUNNING CARS ON BRIDGE GIRDERS DURING EARTHQUAKES

Abstract

Based on lessons from a large number of bridge failures during the 1995 Kobe earthquake, rubber bearings and isolation bearings have been rapidly adopted in new bridges as well as existing ones. The bridge with new bearings is expected to cause longer natural period of superstructure and larger response displacement of girders. However, few researches have done on behaviors of automobile running on elevated bridge under strong ground motions. This research examines measures to improve seismic resistance of elevated bridge from the viewpoint of driver's safety.