MATEC Web Conf.
Volume 313, 2020Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2020
|Number of page(s)||11|
|Published online||16 April 2020|
Suitability assessment of the traditional unified railway bridge girders for high-speed traffic
Emperor Alexander I St.Petersburg State Transport University, Bridge Department, 190031 St.Petersburg, Russia
2 Emperor Alexander I St.Petersburg State Transport University, Mechanical laboratory named prof. N.A. Belelubsky, 190031 St.Petersburg, Russia
* Corresponding author: firstname.lastname@example.org
The article deals with the parameters of high-speed trains effect on the unified simple-span girder reinforced concrete bridge superstructures on conventional railways using a simplified methodology of determining maximum vertical accelerations and live load dynamic factors. It is noted that the dynamic additions to the stress-strain behavior components (bending moments, transverse force and vertical sags) differ from each other. The presented methodology of dynamic factors determination helps to make a dynamic calculation and to identify general forces in simple-span girder superstructures without numerical simulation and straightforward dynamic analysis, which greatly reduces labor intensity of the design works. Based on the dynamic calculation results, a conclusion is made that the unified simple-span girder reinforced concrete bridge superstructures can be applied on high-speed railways, and the scope of their application is specified.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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