ŒfÚŽGŽi˜ajF | “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶W |
VolF | 10-2Šª |
”NF |
1998”N
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•ÅF |
1929-1934•Å
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’˜ŽÒi˜ajF |
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ƒ^ƒCƒgƒ‹i˜ajF |
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´˜^i˜ajF |
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ƒL[ƒ[ƒhi˜ajF |
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ŒfÚŽGŽi‰pjF |
THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
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’˜ŽÒi‰pjF |
Kenji MlURA,Kohji KOYAMADA
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ƒ^ƒCƒgƒ‹i‰pjF |
PRACTICAL METHOD FOR EVALUATING KINEMATIC STRESSES IN PILES
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Dynamic stresses in a pile comprise inertial ƒÐ¡ and kinematic ƒÐ¡ stresses. This paper describes a practical method for evaluating the latter stresses ƒÐ¡ when the maximum acceleration of a design earthquake is given at the ground surface. The subsoil response, which is required to evaluate ƒÐ¡, is determined from the first natural period and the modal-damping factor of the subsoil, incorporating nonlinear characteristics. The applicability of the proposed method is examined in comparison with a more rigorous method. The comparative studies show that ƒÐ¡ and the non-linear behaviors obtained by the proposed method agree well with the rigorous analysis results. The applicability of the proposed method is confirmed from the viewpoint of practical seismic design of a pile.
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ƒL[ƒ[ƒhi‰pjF |
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‹LŽ–‹æ•ªF |
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‹æ•ªF |
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