Seismic displacement response analysis of Friction Pendulum Bearing under friction coupling and collision effects

Wei, Biao; Yang, Zhixing; Fu, Yunji; Xiao, Binqi; Jiang, Lizhong

doi:10.1016/j.engstruct.2024.118128

Cited by 12 publications

(1 citation statement)

References 36 publications

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“…This device not only enhances the bond between beams but also significantly boosts the track structure's capability in transmitting seismic forces. Consequently, this facilitates the transfer of seismic risk from the bridge structure to the subgrade structure, effectively redistributing the seismic load [41]. The detailed arrangement and construction of this risk-transferring connecting beam device are shown in Figure 15.…”

Section: Transfer Of Bridge Seismic Riskmentioning

confidence: 99%

Effect of Subsequent Subgrade on Seismic Response of the High-Speed Railway Track–Bridge System

Wei,

Yuan,

Jiang

et al. 2024

Applied Sciences

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As an important part of the boundary conditions on both sides of the high-speed railway track–bridge system, the seismic response of the subgrade structure is different from that of the bridge structure. This difference has become increasingly significant with the widespread adoption of continuous welded rail technology in bridge construction. Therefore, investigating the seismic response of the bridge system, with a specific focus on the longitudinal constraint effects of the subsequent subgrade track structure, is of paramount importance. Utilizing finite element software, two distinct bridge models are developed: one incorporating the subsequent subgrade track structure and another excluding it. Through nonlinear time history analysis under varying seismic intensities, it is demonstrated that the longitudinal constraint of the subsequent subgrade track structure mitigates the longitudinal displacements and internal forces in critical components of the high-speed railway track–bridge system. Concurrently, acknowledging the heightened complexity and cost associated with post-earthquake repairs of the bridge structure compared to subgrade structure, this study uses a risk transfer connecting beam device. This device can redirect seismic damage from bridge structure to subgrade structure, thereby potentially reducing post-seismic repair expenses for the bridge.

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Section: Transfer Of Bridge Seismic Riskmentioning

confidence: 99%