Assessment of Resonance Effects on Railway Bridges under Moving Loads

0*, R. S. Sonparote**
* Assistant Professor, Department of Civil Engineering, Shri Ramdeobaba College of Engineering and Management, Nagpur.
** Associate Professor, Department of Applied Mechanics, Visvesvaraya National Institute of Technology, Nagpur.
Periodicity:December - February'2017
DOI : https://doi.org/10.26634/jste.5.4.11390

Abstract

In this work, a Finite Element (FE) approach to assess the dynamic response of simply supported railway bridges subjected to loads moving with a constant velocity was studied. Euler-Bernoulli beam was used to simulate the bridge. Verification of the dynamic response using the Finite Element Method was done with respect to the available analytical solutions. Post-validation, a two-span continuous beam was analyzed using FE approach. A three-dimensional model, both for simply supported and two-span continuous bridges, formulated in the time domain to study the dynamic response due to passage of moving loads was carried out. 8 noded solid (brick) elements were used to simulate the sleepers, ballast and bridge; whereas the rails were modeled using frame elements. A parametric study to evaluate the resonance response of the 3D railway bridge structure was conducted.

Keywords

Finite Element Method, Moving Concentrated Loads, Resonance, Time Domain Analysis, Newmark-Integration

How to Cite this Article?

Gharad, A.M., and Sonparote, R.S. (2017). Assessment of Resonance Effects on Railway Bridges under Moving Loads. i-manager’s Journal on Structural Engineering, 5(4), 38-47. https://doi.org/10.26634/jste.5.4.11390

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