<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The studying the dynamic response of steel-concrete railway bridges of Langer type is huge importance of ensuring the safety of such structures under high-speed train loads. Numerical simulations at the design stage require knowledge of the modal characteristics: natural frequencies, shapes and damping. In addition, in the dynamics of railway bridges subjected to high-speed trains, it is important to check the impact of dynamic effects on the ultimate and serviceability limit states. As part of the investigations displacements and accelerations of selected measurement points arising from driving the test rolling stock are analyzed. In the first stage, calculations of the eigenvalues and the corresponding eigenvectors were carried out in the Robot program for two variants of mass description (distributed and discrete). In the second stage, dynamic train passages for various vehicle speeds were examined in terms of displacements and accelerations of measurement points by using the authors’ program MES3D.</p>
</abstract>

The studying the dynamic response of steel-concrete railway bridges of Langer type is huge importance of ensuring the safety of such structures under high-speed train loads. Numerical simulations at the design stage require knowledge of the modal characteristics: natural frequencies, shapes and damping. In addition, in the dynamics of railway bridges subjected to high-speed trains, it is important to check the impact of dynamic effects on the ultimate and serviceability limit states. As part of the investigations displacements and accelerations of selected measurement points arising from driving the test rolling stock are analyzed. In the first stage, calculations of the eigenvalues and the corresponding eigenvectors were carried out in the Robot program for two variants of mass description (distributed and discrete). In the second stage, dynamic train passages for various vehicle speeds were examined in terms of displacements and accelerations of measurement points by using the authors’ program MES3D.

Dynamic Analysis of a Steel-Concrete Railway Bridges of Langer Type Under the Influence of a Moving Load

Structure and Environment

This work is licensed under the Creative Commons Attribution 3.0 Public License.

The studying the dynamic response of steel-concrete railway bridges of Langer type is huge importance of ensuring the safety of such structures under...

Dynamic Analysis of a Steel-Concrete Railway Bridges of Langer Type Under the Influence of a Moving Load

Pubblicato online: 02 nov 2023

Pagine: 147 - 158

DOI: https://doi.org/10.30540/sae-2023-013

Parole chiave
modal analysis, Newmark method, FEM model, moving load, steel-concrete railway bridges of Langer type

© 2023 Waldemar Szaniec et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Dynamic Analysis of a Steel-Concrete Railway Bridges of Langer Type Under the Influence of a Moving Load

Pubblicato online: 02 nov 2023

Pagine: 147 - 158

DOI: https://doi.org/10.30540/sae-2023-013

Parole chiavemodal analysis, Newmark method, FEM model, moving load, steel-concrete railway bridges of Langer type

© 2023 Waldemar Szaniec et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Parole chiave
modal analysis, Newmark method, FEM model, moving load, steel-concrete railway bridges of Langer type