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9-1Šª
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1994”N
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1105-1110•Å
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” Œ^’n’†�\‘¢•¨‚É�ì—p‚·‚é’n�k—͂ƑÏ�kŒvŽZ–@‚ÉŠÖ‚·‚錤‹†
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Œf�ÚŽGŽ��i‰p�j�F
PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Kazuaki WATANABE, Yukio SHIBA
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A STUDY ON THE SEISMIC FORCE AND EARTHQUAKE ANALYSIS METHOD FOR UNDERGROUND BOX-TYPE STRUCTURES
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It is recommended in the design guideline that the seismic analysis of underground box-type structures should be carried out using the seismic deformation method. In this method, the analysis is simplified by considering the three dimensional problem with two independent 2-D analysis. However, the three dimensional response of the structure can not be fully explained by 2-D analysis. In this paper, it is demonstrated by 3-D FEM analysis of underground box-type structure that shear force along the soil-structure interface should be included in the seismic analysis. A comparision with 2-D analysis further revealed that shear stresses on the wall and along the wall-slab joints are important response characteristics that should be considered as well.
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