Modified generalized pushover analysis for estimating longitudinal seismic demands of bridges with elevated pile foundation systems

AUTOR(ES)

Cao, S., Yuan, W.

FONTE

Lat. Am. j. solids struct.

DATA DE PUBLICAÇÃO

2014

RESUMO

In longitudinal multi-mode pushover analysis of bridges with elevated pile foundation systems, the inelastic contributions of the second mode cannot be neglected. Generalized pushover analysis cannot be applied directly in this condition. A modified generalized pushover procedure is developed for estimating seismic demands of bridges with elevated pile foundation systems. Modified generalized pushover procedure, modal pushover analysis and incremental dynamic analysis of a bridge with elevated pile foundation systems are conducted. The results show that the modified generalized pushover procedure can provide reasonable estimations of moments and predict more accurate plastic hinge rotations compared with modal pushover analysis.

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