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VolF4Šª
”NF 1999”N
•ÅF 115-124•Å
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ŒfÚŽGŽi‰pjF PROCEEDINGS OF THE SYMPOSIUM ON UNDERGROUND SPACE
’˜ŽÒi‰pjF Manabu NAKAYAMA,Naonobu TAKEWAKI,Kazunobu IZUMI
ƒ^ƒCƒgƒ‹i‰pjF study on a evaluation method of section forces of underground box-culvert during strong earthquake
´˜^i‰pjF On January 17th, 1995, the Hyogoken-Nanbu Earthquake struck Kobe City and the heavily populated areas in her vicinity in the Hanshin district, which killed more than 6,400 people and destroyed more than 150,000 buildings. Especially, the Daikai subway station, which was constructed by cut-and-cover method, was seriously damaged including the upper floor. This was caused by failure of the reinforced concrete columns. This paper deals with damage to box-culvert underground structures by an elasto-plastic dynamic analysis and proposes a simplified static design method of underground box-culvert during strong earthquake based on the results of dynamic analysis.
ƒL[ƒ[ƒhi‰pjF hyogoken-nanbu earthquake,underground structure,strong earthquake evaluation method
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