000010548 001__ 10548
000010548 005__ 20141205155738.0
000010548 04107 $$aeng
000010548 046__ $$k2008-10-12
000010548 100__ $$aKojima, Yasuhiro
000010548 24500 $$aVibration Characteristics and Earthquake Response of a Fill Dam Having a Semi-Circular Dam Axis

000010548 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010548 260__ $$b
000010548 506__ $$arestricted
000010548 520__ $$2eng$$aShin-Yamamoto dam located in the near field of 2004 Niigata-ken Chuetsu Earthquake sustained serious damage such as large settlement and liquefaction. It is 42.4m high fill dam having a semi-circular dam axis, constructed in 1990. This study aims to find vibration characteristics of the dam and to estimate the cause of the damage. For these purposes, micro-tremor measurements and 3-D numerical simulations were conducted. The H/V spectral ratios, often used to estimate ground motion characteristics from micro-tremor data, indicated the vibration periods in the directions normal and parallel to dam axis were slightly different. A 3-D dynamic analysis was conducted to estimate response of the dam to the main shock. The result showed that earthquake response of the right half side of the dam was supposedly stronger in the dam-axis direction than in the normal direction, but that it was reversed on the left half side. Frequency response functions derived from numerical analysis had similar characteristics from the micro-tremor measurements. Finally, a high correlation was found between the earthquake response intensity in the normal direction and the earthquake-induced settlement.

000010548 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010548 653__ $$a2004 Niigata-ken Chuetsu Earthquake, micro-tremor, finite element method, peak period, earthquake response

000010548 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010548 720__ $$aKojima, Yasuhiro$$iOhmachi, Tatsuo$$iInoue, Shusaku
000010548 8560_ $$ffischerc@itam.cas.cz
000010548 8564_ $$s2169460$$uhttps://invenio.itam.cas.cz/record/10548/files/S13-003.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S13-003.
000010548 962__ $$r9324
000010548 980__ $$aPAPER