Bridge stress calculation based on the dynamic response of coupled train–bridge system

Li, Huile; Xia, He; Soliman, Mohamed; Frangopol, Dan M.

doi:10.1016/j.engstruct.2015.04.014

Cited by 51 publications

(24 citation statements)

References 24 publications

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“…e modal analysis results illustrate that the first vibration mode is the lateral vibration with the natural frequency f 1 � 2.9 Hz and the second vibration mode is the vertical vibration with the corresponding frequency f 2 � 5.62 Hz. Table 2 presents a comparison for natural frequencies between the numerical results and the measured ones in [26]. e results illustrate a good agreement between them with the relative differences smaller than 5%, which validates the accuracy of the bridge model.…”

Section: Ballasted Track-bridge Modelsupporting

confidence: 58%

“…Yu and Mao [25] presented a random wheel-rail force model based on MATLAB and random theory to analyze the probability analysis of high-speed railway TBS. Li et al [26] proposed a direct stiffness method for the strain analysis of a steel bridge based on the vehicle-bridge coupled dynamic system. An existing steel bridge and a simply supported concrete bridge were taken as an example to validate the reliability of the method.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Response of Railway Bridges under Heavy‐Haul Freight Trains

Xiao

Luo

Liu

et al. 2020

Advances in Civil Engineering

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In the freight railway bridge, the increase of the train running speed and train axle loads can enlarge dynamic response (DR) of the railway bridges, which leads to excessive vibration of bridges and endangers the structural safety. In this paper, a three-dimensional coupled finite element (FE) model of a heavy-haul freight train-track-bridge (HHFTTB) is established using multibody dynamics theory and FE method, and the DR for the coupled system of HHFTTB are solved by ABAQUS/Explicit dynamic analysis method. The field-measured data for a 32 m simply supported prestressed concrete beam of a heavy-haul railway in China are analyzed, and the validity of the FE model is verified. Finally, the effects of train formation number, train running speed, and train axle loads on DR of the heavy-haul railway bridge structures are studied. The results show that increasing the train formation number only has an influence on DR duration of the bridge structure, rather than the peak value of DR, when the train formation number exceeds a certain number; besides, the train axle loads and train running speed have significant influence on DR of the bridge structure. The results of this study can be used as reference for the design of heavy-haul railway bridges and the reinforcement transformation of existing railway bridges.

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Section: Ballasted Track-bridge Modelsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Railway Bridges under Heavy‐Haul Freight Trains

Xiao

Luo

Liu

et al. 2020

Advances in Civil Engineering

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“…Generally VBCV problems can be solved by iterative or coupled methods. The iterative method usually has a high computation cost to achieve numerical convergence (Chatterjee et al 1994;Broquet et al 2004); for the coupled method, vehicle and bridge coupled motion equations are assembled and solved by direct integration methods such as the Newmark and Runge-Kutta method (Fafard et al 1998;Kim et al 2005;Deng et al 2010;Li et al 2015). Furthermore, modal superposition is a general technique used in solving VBCV problems because it significantly reduces the calculation effort by reducing the size of the matrices in the equation (Xia et al 2000;Xu et al 2010;Yin et al 2010a).…”

Section: Vehicle-bridge Coupled Vibration Systemmentioning

confidence: 99%

Dynamic analysis of a large span specially shaped hybrid girder bridge with concrete-filled steel tube arches

Cai

Liu

et al. 2016

Engineering Structures

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In the present study, the dynamic property of a specially shaped hybrid girder bridge with concretefilled steel tube (CSFT) arches is investigated based on experimental and numerical methods, especially under moving vehicles. Before the inauguration of this bridge, a dynamic field test was conducted. A refined three-dimensional finite element model is built to represent the complex structural mechanic property of the bridge. The vehicle-bridge coupled vibration (VBCV) model with a 16 DOF vehicle model is established to simulate the dynamic behavior of the bridge with moving vehicles. The FE model is updated, and the VBCV model for the bridge is verified, taking advantage of the aforementioned measured data. The result indicates that the proposed VBCV numerical model can closely reproduce the measured response and can be used to simulate the dynamic behavior of the bridge under various conditions. The impact effect, ride and pedestrian comfort, and related parameters analysis for the bridge with moving vehicles are studied by numerical simulations and experimental tests. The results indicate that the impact factor formula from design standards significantly underestimates the dynamic impact effect, which may result in an unfavorable influence on the bridge safety. Several conclusions are drawn for this bridge, and further research that is needed for this new bridge type is discussed.

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“…For one thing, in the design codes, sometimes the conventional consideration of the factors for fatigue assessment is confusing due to the regardless of real operation conditions [147]. For another, the stress obtained from the conventional moving load approach is not accurate enough compared with the measured data [148]. By contrast, the systematic approach with TTBDI considered is more reasonable and practical.…”

Section: Evaluation Of Fatigue Life Of Bridgementioning

confidence: 99%

Train–track–bridge dynamic interaction: a state-of-the-art review

Zhai

Han

Chen

et al. 2019

Vehicle System Dynamics

316

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Train-track-bridge dynamic interaction is a fundamental concern in the field of railway engineering, which plays an extremely important role in the optimal design of railway bridges, especially in high-speed railways and heavy-haul railways. This paper systematically presents a state-of-the-art review of train-track-bridge dynamic interaction. The evolution process of train-bridge dynamic interaction model is described briefly, from the simplest moving constant force model to the sophisticated train-track-bridge dynamic interaction model (TTBDIM). The modelling methodology of the key elements in the TTBDIM is systematically reviewed, including the train, the track, the bridge, the wheel-rail contact, the track-bridge interaction, the system excitation and the solution algorithm. The significance of detailed track modelling in the whole system is highlighted. The experimental research and filed test focusing on modelling validation, safety assessment and long-term performance investigation of the train-track-bridge system are briefly presented. The practical applications of train-track-bridge dynamic interaction theory are comprehensively discussed in terms of the system dynamic performance evaluation, the system safety assessment and train-induced environmental vibration and noise prediction. The guidance is provided on further improvement of the train-track-bridge dynamic interaction model and the challenging research topics in the future. ARTICLE HISTORY

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Bridge stress calculation based on the dynamic response of coupled train–bridge system

Cited by 51 publications

References 24 publications

Dynamic Response of Railway Bridges under Heavy‐Haul Freight Trains

Dynamic Response of Railway Bridges under Heavy‐Haul Freight Trains

Dynamic analysis of a large span specially shaped hybrid girder bridge with concrete-filled steel tube arches

Train–track–bridge dynamic interaction: a state-of-the-art review

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