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http://dx.doi.org/10.7734/COSEIK.2015.28.6.675

A Comparison Study of Model Reduction Method with Direct Impact Analysis of Truck-column Collision  

Lee, Jaeha (Department of Civil Engineering, Korea Maritime and Ocean University)
Kim, Kyeongjin (Department of Civil and Environmental Engineering, Korea Maritime and Ocean University)
Jeong, Yoseok (Department of Civil Engineering, Chungnam National University)
Kim, Wooseok (Department of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.28, no.6, 2015 , pp. 675-682 More about this Journal
Abstract
Current design codes such as AASHTO LRFD or Korean Highway Bridge Design Code recommend of using static force for designing bridge column against vehicle collisions. However, there was an accident that the bridge was collapsed shortly after vehicle impact on bridge pier in Nebraska(near Big Spring, 2003). It was found that the second largest cause of bridge collapse is collision after hydraulic causes. It can be thought that the possibility of truck-bridge collision are getting increasing as the size of truck increases and traffic condition are becoming improved. However, dynamic behavior under the impact loading seldom considered in bridge design procedure due to computational cost and time. In this study, in order to reduce the computational cost for dynamic impact analysis, model reduction method was developed. Obtained results of residual displacement were compared with the results of direct impact simulations.
Keywords
model reduction; concrete bridge column; vehicle-column collision; direct impact analysis; in-direct impact analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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