Seismic Pounding Response of Girder Bridges Considering Lateral Stiffness of Ground Motion

DOI

10.2991/aeece-15.2015.105How to use a DOI?

Keywords

lateral pier stiffness; earthquake; pounding; transition pier

Abstract

In order to study the effect of pounding at expansion joints of beam bridge on the seismic responses of bridge structure during earthquake, the research is based on multi-particle of single degree of freedom system, and the pounding effects of adjacent girders on seismic responses with 3 different of farming waves are studied by using nonlinear vibration equations of motion. The results indicated that the influence of ratio of peak moment on lateral rigidity may attenuate or increase with the reduce of lateral pier stiffness, which depends on a great extent on the effective peak acceleration (EPA) and duration. With the decreasing lateral pier stiffness, the maximum collision force between beams first increased and then decreased. The main parameters influencing of collision number is effective peak acceleration(EPA) when lateral pier stiffness is big, otherwise, duration is the main parameters .The influence of the effective peak acceleration(EPA) is attenuated gradually with the reduce of the lateral pier stiffness, while the influence of duration increased.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Lin Shen
AU  - Laijun Liu
AU  - Fangwen Wu
AU  - Yu Li
PY  - 2015/09
DA  - 2015/09
TI  - Seismic Pounding Response of Girder Bridges Considering Lateral Stiffness of Ground Motion
BT  - Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering
PB  - Atlantis Press
SP  - 522
EP  - 526
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-15.2015.105
DO  - 10.2991/aeece-15.2015.105
ID  - Shen2015/09
ER  -