Seismic Pounding Response of Girder Bridges Considering Lateral Stiffness of Ground Motion
- DOI
- 10.2991/icache-15.2015.90How 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. The smaller lateral pier stiffness is the maximum collision force between beams first increased and then decreased, it has held stable. 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. The influence of relative displacement between beams reduces with reducing the lateral pier stiffness.
- 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/).
Cite this article
TY - CONF AU - Fa shui Liu AU - Lai jun Liu AU - Lin Shen AU - Cao fang Yang PY - 2015/11 DA - 2015/11 TI - Seismic Pounding Response of Girder Bridges Considering Lateral Stiffness of Ground Motion BT - Proceedings of the 2015 International Conference on Architectural, Civil and Hydraulics Engineering PB - Atlantis Press SP - 468 EP - 475 SN - 2352-5401 UR - https://doi.org/10.2991/icache-15.2015.90 DO - 10.2991/icache-15.2015.90 ID - Liu2015/11 ER -