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곡선구간을 포함한 고가철도의 레일 구조물 상호작용 해석
조의경(Cho Eu-Kyeong),박성룡(Park Sung-Ryung) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presents the rail structure interaction analysis of the elevated viaducts which contains the curved alignments with smallest radius of 300 metre. The aim of this study is to check the compatibility between the track and the curved structure in order to verify the safety of the continuous welded rail track under service conditions. To perform the rail structure interaction analysis, nonlinear static rail structure interaction calculation is implemented. The bridge structures, the rails and the track behaviour are modelled according to the UIC774-3 and the Eurocode prEN1991-2 recommendations. Criteria in Eurocode prEN1991-2 are investigated to check the compatibility between the track and the structure for the rail structure interaction effects.
조의경(Eu Kyeong Cho),장승필(Sung Pil Chang) 한국강구조학회 1993 韓國鋼構造學會誌 Vol.5 No.2
This study develops an analytic method for potential flow problem of liquid in rigid tank boundary during earthquake. Boundary surfaces wrapping the liquid volume are discretized and boundary integral equation is re-formulated in matrix form via Boundary Element Method (BEM). Boundary conditions in each surface are expressed in linear simultaneous equations by time marching procedure. Verifications and accuracy tests of BEM and time marching scheme are performed and some numerical examples of transient responses are given. One of the main purposes of the study is to construct an analytic model for liquid-structure interaction problem and liquid-soil-structure interaction problem. For this purpose, every procedure of numerical implementation of boundary elements is formulated and performed taking account of combination with isoparametric finite shell elements. Actually, the implementation of interaction analyses is out of this scope, therefore developed method is only applicable to thick-walled tank with such assumption that the deformation of tank wall and base is negligible.