UPDATES ON THE TAIWAN AREA NATIONAL FREEWAY BRIDGE SEISMIC RETROFIT PROGRAM

摘要

After Chi-Chi Earthquake struck Taiwan on September 21, 1999, TANFB actively took preventive measures forbridges that were opened to traffic. Based on the seismic vulnerability rating results and prioritization studied using theTaiwan Earthquake Loss Estimation System (TELES), Taiwan freeway bridge authority initiated a three-phases seismicretrofit program in 2000. This paper reports the overall program scope, seismic evaluation criteria, retrofit method, budgetand schedule. The information is valuable for engineers and stakeholders from managing system perspective.