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http://dx.doi.org/10.11112/jksmi.2008.12.6.81

Study on the Evaluation Method of Load Carrying Capacity Based on Nonlinear FEM Analysis for PSC I Typed Girder Bridge  

Sim, Jongsung (한양대학교 토목공학과)
Kim, Gyu-Seon (한국시설안전공단 진단 1 본부 교량실)
Moon, Do-Young (고려대학교 건축사회환경공학과)
Ju, Minkwan (한양대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.6, 2008 , pp. 81-88 More about this Journal
Abstract
The purpose of this study is to improve and modify the evaluation method of load carrying capacity for simply supported PSC I Typed girder bridge. To do this, conventional ASD(Allowable Stress Design) and USD(Ultimate Strength Design) evaluation method were initially investigated and it was evaluated that the conventional USD evaluation method may perform the load carrying capacity as conservative because it do not consider the prestressing upper-force effect of simply supported PSC I Typed girder bridge. To reasonably evaluate the load carrying capacity, the upper-force effect should be considered to the PSC I Typed girder bridge. Thus, in this study, the MUSD method was Suggested and compared to the nonlinear FEM based-load carrying capacity using the live load factor and the efficiency of the evaluation method of load carrying capacity was investigated by experimental and analytical result. In the result of this study, the suggested MUSD evaluation method showed a reasonable evaluating result for the simply supported PSC bridge. For the new technique of load carrying capacity based on the nonlinear FEM analysis, it could effectively simulate the load-deflection relationship and the load carrying capacity of the PSC I Typed girder bridge.
Keywords
PSC I-typed girder bridge; MUSD evaluation method; Nonlinear FEM analysis;
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