�@ Œf�ÚŽGŽ��i˜a�j�F “ú–{’n�k�HŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶�W Vol�F 9-1Šª ”N�F 1994”N •Å�F 1105-1110•Å ’˜ŽÒ�i˜a�j�F “n•Ó�@˜a–¾�C�@Žu”g�@—R‹I•v ƒ^ƒCƒgƒ‹�i˜a�j�F ” Œ^’n’†�\‘¢•¨‚É�ì—p‚·‚é’n�k—͂ƑÏ�kŒvŽZ–@‚ÉŠÖ‚·‚錤‹† �´˜^�i˜a�j�F
- ƒL�[ƒ��[ƒh�i˜a�j�F - Œf�ÚŽGŽ��i‰p�j�F PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒ�i‰p�j�F Kazuaki WATANABE, Yukio SHIBA ƒ^ƒCƒgƒ‹�i‰p�j�F A STUDY ON THE SEISMIC FORCE AND EARTHQUAKE ANALYSIS METHOD FOR UNDERGROUND BOX-TYPE STRUCTURES �´˜^�i‰p�j�F
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. ƒL�[ƒ��[ƒh�i‰p�j�F - ‹LŽ–‹æ•ª�F - ‹æ•ª �@�@�@ˆÏˆõ‰ï˜_•¶�W