Performance of Bridges in Liquefied Ground During 1999 Chi-Chi Earthquake

Abstract eng:
The 1999 Chi-Chi, Taiwan Earthquake is one of the best-documented seismic events in history. Numerous cases of ground failure were caused by liquefaction and cyclic failure of young, saturated loose sediments. Reconnaissance efforts aimed at documenting these cases of ground failure were often near bridges, many of which exhibited no adverse effects from liquefaction and were therefore not systematically studied after the earthquake. This paper presents cases of bridges that were founded in soils that exhibited evidence of liquefaction and lateral spreading near the bridges, but had little adverse impact on performance of the bridges. These case histories provide an opportunity to evaluate how well our engineering calculation procedures can predict good performance.

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