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Seismic Performances of Mountainous Continuous Rigid Frame Solid and Hollow Pier Railway Bridges
Department of Bridge and Tunnel Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, China
Department of Bridge and Tunnel Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, China
Department of Bridge and Tunnel Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, China
- 1 Department of Bridge and Tunnel Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, China
- 2 Department of Bridge and Tunnel Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, China
- 3 Department of Bridge and Tunnel Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, China
Open Journal of Civil Engineering·Volume 08 (2018)·Pages 489–507·Published 9 October 2018·DOI10.4236/ojce.2018.84035
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Abstract
This paper focuses on the seismic performance of mountainous railway bridges having different pier type i.e. rectangular hollow piers and solid piers. The piers used were of same materials and inertial properties. For this, 3-D FEM models of these bridges were created by ANSYS 15.0. For seismic assessment, Response Spectrum and Dynamic Time-History Analysis methods were adopted. Different types of earthquake waves used were Elcentro, Wenchuan and Nepal earthquakes, all normalized to 0.3 g Peak Ground Acceleration (PGA). The study concluded that even though the hollow pier bridges are susceptible to large displacements, its dealing with internal forces is remarkable compared to solid pier bridges.
KeywordsHollow Pier Mountainous BridgeSolid Pier Mountainous BridgeResponse Spectrum AnalysisModal AnalysisTime-History Analysis
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