Seismic Response Analysis of High-Speed Railway Bridge Fabricated Round-Ended Piers
The responses of high-speed railway bridge subjected to seismic load were investigated by numerical simulation, the whole finite element model of the multi-span bridge simply supported bridge was set up, and natural vibration properties of structure were analyzed. According to theory of elasticity and elastic-plasticity, parametric study was conducted to assess the influences of different speeds, strong motion record, pier height and earthquake acceleration on the seismic capability of high-speed bridge subjected to different strength of the earthquake, the finite element soft ware and moment-curvature program were employed to calculate the earthquake responses of bridge. The calculation results show that, with the increase of train speed, pier height and earthquake intensity, the earthquake responses of bridge are increase in general, and the bottom of piers step into states of elastic-plasticity under high-level earthquake, elastic-plastic deformation is larger, the stirrup encryption measures should be carried out.
Chaohe Chen, Yong Huang and Guangfan Li
L. K. Chen et al., "Seismic Response Analysis of High-Speed Railway Bridge Fabricated Round-Ended Piers", Advanced Materials Research, Vols. 243-249, pp. 3844-3847, 2011