Abstract
Seismic-induced bridge poundings have been observed in almost all of the previous major earthquakes. Poundings can occur along both the longitudinal and transversal directions of bridges. The former usually happens between the adjacent girders and/or between the abutment and girder, whereas the latter happens at shear keys used to prevent girder unseating. Pounding has been identified as a crucial factor affecting bridge seismic performance, which may cause localized damage and even collapse. This work systematically reviews previous research on seismic-induced poundings in both the highway and high-speed railway (HSR) bridges aiming to better understand the pounding phenomenon. The reasons for pounding occurrence, pounding effects on bridges, and mitigation measures are discussed, and some directions for future studies are recommended.
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