Numerical analysis on seismic response of Shinkansen bridge-train interaction system under moderate earthquakes

He, Xingwen; Kawatani, Mitsuo; Hayashikawa, Toshiro; Matsumoto, Takashi

doi:10.1007/s11803-011-0049-1

Cited by 46 publications

(24 citation statements)

References 8 publications

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“…On the contrary, the seismic response of the bridge was amplified when the vehicles were treated as additional vertical masses. The conclusions of the more recent similar study of He et al , are in agreement with those of . Tanabe et al , studied numerically the behavior of the Shinkansen trains and railway bridges during earthquakes and checked experimentally part of their results.…”

Section: Introductionsupporting

confidence: 77%

Seismic response analysis of an interacting curved bridge–train system under frequent earthquakes

Zeng

Dimitrakopoulos

2016

Earthq Engng Struct Dyn

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Summary This paper establishes a scheme for the seismic analysis of interacting vehicle–bridge systems. The focus is on (horizontally) curved continuous railway bridges and frequent earthquakes. Main features of the proposed scheme are (i) the treatment of the dynamics in all three dimensions (3D), employing an additional rotating system of reference to describe the dynamics of the vehicles and a realistic 3D bridge model; (ii) the simulation of the creep interaction forces generated by the rolling contact between the wheel and the rail; and (iii) the integration of the proposed scheme with powerful commercial finite element software, during the pre‐processing and post‐processing phases of the analysis. The study brings forward the dynamics of a realistic vehicle–bridge (interacting) system during seismic shaking. For the (vehicle–bridge) case examined, the results verify the favorable damping effect the running vehicles have on the vibration of the deck. By contrast, the study stresses the adverse influence of the earthquake‐induced bridge vibration on the riding comfort but, more importantly, on the safety of the running vehicles. In this context, the paper unveils also a vehicle–bridge–earthquake timing problem, behind the most critical vehicle response, and underlines the need for a probabilistic treatment. Among the 20 sets of historic records examined, the most crucial for the safety of the vehicles are near‐fault ground motions. Finally, the study shows that even frequent earthquakes, of moderate intensity, can threaten the safety of vehicles running on bridges during the ground motion excitation, in accordance with recorded accidents. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Introductionsupporting

confidence: 77%

Seismic response analysis of an interacting curved bridge–train system under frequent earthquakes

Zeng

Dimitrakopoulos

2016

Earthq Engng Struct Dyn

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“…Several studies (Kim and Kawatani 2006;Kim et al 2011;He et al 2011) verified that the seismic response of the bridge is reduced when the dynamics of the vehicles are properly simulated, whereas it is amplified when the vehicles are treated as additional vertical masses. Yang and Wu (2002) investigated the stability of train vehicles, stationary or moving, on bridges shaken by earthquakes.…”

Section: Introductionmentioning

confidence: 99%

Dynamic vehicle–bridge interaction under simultaneous vertical earthquake excitation

Paraskeva

Dimitrakopoulos

Zeng

2016

Bull Earthquake Eng

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Traditionally, the seismic response analysis of a bridge does not account for the concurrent vehicle-bridge dynamic interaction. However, the behavior of a seismically excited bridge can jeopardize the safety of the vehicles running on it, even if the bridge itself remains undamaged. This study examines the seismic response of a vehicle-bridge interacting (VBI) system under vertical earthquake excitation, modelling the truck vehicles as rigid body assemblies. An application of the proposed scheme to a realistic case of (highway) bridge-(truck) vehicles shows that the earthquake ground motion and the road surface conditions are the main sources of excitation. The results show that the road surface conditions influence strongly the dynamics of the VBI system, even when the vertical component of the earthquake excitation is significant. Also, the study brings forward the influence of traffic parameters (namely the speed, the number and the distance between the running vehicles) and underlines the need to consider different positions of the vehicle/s (on the deck) during the earthquake shaking. Finally, it examines the tendency of the wheels of a truck vehicle to detach (jump) from the deck during the seismic response of the VBI system. Detachment tends to be more frequent as the road surface conditions deteriorate and/or the peak ground acceleration increases. However, detachment is a complicated phenomenon which depends also on many other ground motion and VBI system parameters and deserves further study.

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“…3 They used a three-span simply supported beam to deduce the di®erential equation of the bridge and vehicle system, and conducted the experimental and numerical analyses to validate the analytical procedures. The researchers considered the dynamic response of train-bridge systems subjected to nonuniform seismic excitations.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Railway Vehicles Running on Long-Span Cable-Stayed Bridge Under Uniform Seismic Excitations

Zhu

Cai

et al. 2016

Int. J. Str. Stab. Dyn.

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In order to evaluate the dynamic response of the train running on long-span cable-stayed bridges under uniform seismic excitations, a time-domain framework of analysis for the trainbridge system is established. The rail irregularities are treated as internal excitation and seismic loads as external excitation considering the inertia forces induced by the 3D seismic waves. The vehicles are modeled as mass-spring-damper systems, and the cable-stayed railway bridge is simulated by¯nite elements. A comprehensive analysis of the train-bridge system subjected to earthquake is conducted, focused on the e®ect of seismic ground motions on the dynamic response of the running train. Four kinds of seismic waves, each with three components, are simulated, with their spectral characteristics taken into account. To consider the stochastic characteristic of actual seismic waves, the e®ect of the incident angle and occurrence time of earthquakes on the bridge and vehicles is analyzed. Moreover, the earthquakes with various occurrence probability levels are also studied and the safety of the train running under the seismic action is evaluated, which may be used as the operation reference for the railway authority. The results demonstrate that the seismic ground motions have signi¯cant e®ects on the dynamic response of railway vehicles running on the long-span cable-stayed bridge under various spectrum characteristics, incident angles, occurrence times, and occurrence probabilities.

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Numerical analysis on seismic response of Shinkansen bridge-train interaction system under moderate earthquakes

Cited by 46 publications

References 8 publications

Seismic response analysis of an interacting curved bridge–train system under frequent earthquakes

Seismic response analysis of an interacting curved bridge–train system under frequent earthquakes

Dynamic vehicle–bridge interaction under simultaneous vertical earthquake excitation

Dynamic Response of Railway Vehicles Running on Long-Span Cable-Stayed Bridge Under Uniform Seismic Excitations

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