한국지진공학회:학술대회논문집 (Proceedings of the Earthquake Engineering Society of Korea Conference)
- 한국지진공학회 2005년도 학술발표회 논문집
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- Pages.413-417
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- 2005
지진하중에 의한 구조물 파괴형상 변화에 대한 메조스케일 해석
- Kim, Ju-Whan ;
- Hong, Jung-Wuk (University of Florida) ;
- Lim, Yun-Mook
- 발행 : 2005.03.18
초록
A lattice model of a typical bridge column section is analyzed, and results are presented. The lattice is built as an ensemble of line elements and masses, that can capture strain rate dependency of concrete material. The research mainly breaks up into two parts: First, a micro level analysis of the material is executed, and control parameters of the governing equations are derived by matching the results with the common macroscopic properties of concrete material. Then, the properties exhibited by the micro model, which extends the classical material properties are applied to the mesoscale model. Hence, the analysis of the target structure can be performed. In the mesoscale analysis, ramp-like impulse loads are applied at different velocity, so that the contribution of the material level rate dependency to the global behavior of the structure can be tracked.
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