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http://dx.doi.org/10.11112/jksmi.2010.14.2.097

Behavior Due to Construction Step in Steel Deck Bridge by Large Block Construction Method  

Lee, Seong-Haeng (부산대학교 사회환경시스템공학부)
Kim, Kyoung-Nam (충북대학교 건설기술연구소)
Hahm, Hyung-Gil (부산대학교 사회환경시스템공학부)
Jung, Kyoung-Sup (충북대학교 토목시스템공학)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.14, no.2, 2010 , pp. 97-105 More about this Journal
Abstract
The displacements of steel deck bridge due to construction step are measured, and three dimensional analysis with full modeling is carried out to compare with the measured results. Three dimensional structural analyses considering construction step by large block construction method are accomplished with verified model. The conclusions are as follows. 1. Comparing the data of grid analysis with the result of 3D full modeling in steel deck bridge, the design method using grid analysis has a limit for describing the displacements of curved bridge. The analysis of 3D full modeling has been proved as more accurate method. The differentiation of results in two methods is about 10%~20%. 2. It is verified that the maximum displacement of during construction is 1.7 times larger than the displacement of final construction. 3. The bridge behavior considering the construction step is somewhat different from that of final stage in whole structure and the displacement and stress during construction is larger than that of final construction. Therefore, it needs the reasonable structural design considering the construction step to get economical efficiency and a high competitive construction.
Keywords
Construction step; Large block construction method; Steel deck bridge; 3D Structural Analysis;
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