000011646 001__ 11646 000011646 005__ 20141205155932.0 000011646 04107 $$aeng 000011646 046__ $$k2008-10-12 000011646 100__ $$aShimomura, Yukio 000011646 24500 $$aProposal of New Foundation Construction Works with High Damping and Mitigation Performance; Part 1 Forced Vibration Tests of Two Types of Foundation Blocks and Simulation Analyses 000011646 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering 000011646 260__ $$b 000011646 506__ $$arestricted 000011646 520__ $$2eng$$aThis study focuses on the progress of the damping and mitigation performance of foundations that will be built at soft ground sites, and proposes an improved foundation technique which implements backfilling of a damping composite material into trenches dug along a foundation area. The damping material is a mixture of asphalt with crushed stones and scrap tire chips. Forced vibration tests were conducted to confirm the effectiveness of the proposed foundation technique on two types of foundation blocks, those being, CF and IF; the former was constructed by a conventional construction method and the latter applied to the improved foundation technique mentioned above. We have carried out the 3-dimensional simulation analyses adopting a hybrid approach in which two foundations and the soil region adjacent the foundations are rendered using the 3-dimensional finite element model. Comparing with the response of the both foundations, it has been confirmed that the damping material adopted in the IF provides good attenuation and mitigation performance. 000011646 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000011646 653__ $$aDamping mixtures, scrap tire chips, asphalt, forced vibration test, foundation blocks 000011646 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15 000011646 720__ $$aShimomura, Yukio$$iKawamura, Masashi$$iIkeda, Yoshio$$iSako, Noriaki$$iIshimaru, Shinji 000011646 8560_ $$ffischerc@itam.cas.cz 000011646 8564_ $$s231913$$uhttps://invenio.itam.cas.cz/record/11646/files/04-01-0015.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-01-0015. 000011646 962__ $$r9324 000011646 980__ $$aPAPER