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http://dx.doi.org/10.7734/COSEIK.2017.30.1.55

Evaluation of Shear Load Carrying Capacity of Lateral Supporting Concrete Block for Sliding Slab Track Considering Construction Joint  

Lee, Seong-Cheol (Department of NPP Engineering, KEPCO International Nuclear Graduate School(KINGS))
Jang, Seung Yup (High-Speed Railroad System Research Center, Korea Railroad Research Institute(KRRI))
Lee, Kyoung-Chan (High-Speed Railroad System Research Center, Korea Railroad Research Institute(KRRI))
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.30, no.1, 2017 , pp. 55-61 More about this Journal
Abstract
Recently several researches have been conducted to develop sliding track system in which friction between concrete track and bridge slab has been reduced. This paper investigated shear load carrying capacity of lateral supporting concrete block which should be implemented to resist lateral load due to train in sliding track system. In order to evaluate shear load carrying capacity of lateral supporting concrete block, analytical model has been developed considering concrete friction and rebar dowel action along construction joint. The proposed model predicted test results on the shear load carrying capacity from literature conservatively by 13~23% because effect of aggregate interlock along crack surface was neglected. Since construction joint status is ambiguous on construction site, it can be concluded that the proposed model can be used for reasonable design of lateral supporting concrete block. Based on the proposed model, design proposal for lateral supporting concrete block has been established.
Keywords
dowel; shear; concrete friction; construction joint; sliding slab track;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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