TY  - JOUR
PY  - 2021//
TI  - A near-fault vertical scenario earthquakes-based generic simulation framework for elastoplastic seismic analysis of light rail vehicle-viaduct system
JO  - Vehicle system dynamics
A1  - Chen, Ling-Kun
A1  - Qin, Hong-Xi
A1  - Jiang, Li-Zhong
A1  - Xu, Lei
SP  - 949
EP  - 973
VL  - 59
IS  - 6
N2  - This paper focuses on the rapid elastoplastic analyses of light rail vehicle (LRV)- benchmark viaduct system to different seismic scenarios considering the dynamic substructuring method (DSM). Combining the energy-variational principle with the vehicle-bridge interaction (VBI) system, a new framework of train-track system space dynamics is constructed. The present study has established the train-track-bridge coupled system (TTBCS) model, calculated the elastic-plastic seismic responses of the light rail transit bridge (LRTB) subjected to the combined effect of vertical and horizontal earthquakes. Considering three ground motion ensembles, i.e. pulse-like near-fault ground motions (NFGMs), non-pulse-like NFGMs, and far-field ground motions (FFGMs). <br><br>RESULTS indicate that the large vertical ground motions (VGMs) type NFGMs greatly impact the seismic response of the running safety of the LRV in the low-frequency band compared to the non-pulse-like NFGMs and FFGMs. The results underscore the significance of distinguishing velocity pulses of different types when selecting NFGMs for assessing the nonlinear dynamic response of the VBI system.<p />  <p>Language: en</p>
LA  - en
SN  - 0042-3114
UR  - http://dx.doi.org/10.1080/00423114.2020.1739316
ID  - ref1
ER  -