Investigation of Extent of Damage to Elevated Bridges under Hanshin-Awaji Earthquake Disaster by using GIS

Abstract

The relation between the extent of damage to the elevated bridges such as Hanshin Expressway Kobe Route under Hanshin-Awaji Earthquake Disaster and the distance from the nearest active fault to bridge has been investigated. It has been also discussed whether the extent of damage to the elevated bridges depends on the kind of nature of surface soil on which bridge struc ture is constructed. These studies are carried out by using the GIS software. The result shows that the amount of inclination of piers increases as the distance from the nearest active fault to bridge becomes smaller. It has been also revealed that any significant tendency is not recognized between the kind of nature of surface soil and the extent of damage to bridge.