A Fragility-Based Seismic Risk Prioritization Method for Highway Bridges

摘要

A new seismic risk prioritization method is proposed for highway bridges in Clark County, Nevada, USA, using (a) a fragility-based vulnerability analysis, (b) an importance analysis, and (c) the latest bridge and site soil data. The analysis methods and data collections are described in the paper; however, the primary focus is on the fragility-based vulnerability analysis used in this project. The results may be used by the department of transportation and by the pre-earthquake planning organizations. The proposed method is contrasted with the bridge priority method that is currently used by the state of Nevada.