000009918 001__ 9918
000009918 005__ 20141205153207.0
000009918 04107 $$aeng
000009918 046__ $$k2008-10-12
000009918 100__ $$aDutta, Utpal
000009918 24500 $$aEffect of Seasonally Frozen Soil on Seismic Site Response

000009918 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009918 260__ $$b
000009918 506__ $$arestricted
000009918 520__ $$2eng$$aThe existence of deep seasonally frozen soils might pose a serious problem in to structures supported by deep foundations. Moreover, in a highly active seismogenic zones, the presence of such layer might alter the ground response during any strong earthquakes. To understand the influence of the seasonally frozen layer on the ground motions, the impact of seasonal frost on the site response at one selected bridge site in the State of Alaska has been study by using 1-D wave propagation method. At this site, 1-D soil profile has been constructed based on the available geotechnical and geological information. The hazard-consistence bedrock motions have been estimated from the recorded ground motion data of several earthquakes occurred at different parts of the world in similar tectonic regime. The generated bedrock motions were then propagated through the soil column and the transfer function between the motions observed at bedrock and surface were computed. The parametric studies have been conducted to investigate the effect of thickness, depth and other physical properties of the frozen layers by comparing the computed transfer functions. The paper discusses the impact of seasonally frozen ground on the amplitude and shape of the site response spectrum.

000009918 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009918 653__ $$aSite Response, earthquake hazard, frozen ground, equivalent linear analysis

000009918 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009918 720__ $$aDutta, Utpal$$iYang, Zhaohui (Joey)$$iXu, Gang$$iHazirbaba, Kenan
000009918 8560_ $$ffischerc@itam.cas.cz
000009918 8564_ $$s1163202$$uhttps://invenio.itam.cas.cz/record/9918/files/S09-009.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S09-009.
000009918 962__ $$r9324
000009918 980__ $$aPAPER