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Proceedings Paper

Development of a numerical model for vehicle-bridge interaction analysis of railway bridges
Author(s): Hee Ju Kim; Eun Sang Cho; Jun Su Ham; Ki Tae Park; Tae Heon Kim
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Paper Abstract

In the field of civil engineering, analyzing dynamic response was main concern for a long time. These analysis methods can be divided into moving load analysis method and moving mass analysis method, and formulating each an equation of motion has recently been studied after dividing vehicles and bridges. In this study, the numerical method is presented, which can consider the various train types and can solve the equations of motion for a vehicle-bridge interaction analysis by non-iteration procedure through formulating the coupled equations for motion. Also, 3 dimensional accurate numerical models was developed by KTX-vehicle in order to analyze dynamic response characteristics. The equations of motion for the conventional trains are derived, and the numerical models of the conventional trains are idealized by a set of linear springs and dashpots with 18 degrees of freedom. The bridge models are simplified by the 3 dimensional space frame element which is based on the Euler-Bernoulli theory. The rail irregularities of vertical and lateral directions are generated by PSD functions of the Federal Railroad Administration (FRA).

Paper Details

Date Published: 20 April 2016
PDF: 9 pages
Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98034K (20 April 2016); doi: 10.1117/12.2218784
Show Author Affiliations
Hee Ju Kim, Korea Institute of Civil Engineering and Building Technology (Korea, Republic of)
Eun Sang Cho, Hyundai Engineering Co., Ltd. (Korea, Republic of)
Jun Su Ham, Inha Univ. (Korea, Republic of)
Ki Tae Park, Korea Institute of Civil Engineering and Building Technology (Korea, Republic of)
Tae Heon Kim, Korea Institute of Civil Engineering and Building Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 9803:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016
Jerome P. Lynch, Editor(s)

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