000012022 001__ 12022
000012022 005__ 20141205160011.0
000012022 04107 $$aeng
000012022 046__ $$k2008-10-12
000012022 100__ $$aWang, L.X.
000012022 24500 $$aChaotic Seismic Torsional Pounding Between Two Single-Story Asymmetric Towers

000012022 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012022 260__ $$b
000012022 506__ $$arestricted
000012022 520__ $$2eng$$aAdjacent buildings are subjected to pounding hazard during earthquakes when there are inadequate separation distances. Pounding phenomena have been observed during past major earthquakes, including recent M8.0 Wenchuan Earthquake on May 12, 2008, and have been identified as one of the main causes of structural damages of buildings. However, most of actual poundings are likely to be eccentric due to asymmetric structural plans or non-constant gaps between adjacent buildings. Seismic torsional pounding is a highly nonlinear phenomenon in nature. In this study, the nonlinear Hertz contact law was adopted to simulate impacts between two single-story asymmetric towers. The numerical simulation results show that torsional pounding tends to be much more complex than translational pounding, and most of torsional impacts are chaotic. Group periodic pounding (i.e. a group of non-periodic impacts repeating themselves periodically) observed in shaking table tests by Chau et al. (2003) was replicated numerically for the first time by incorporating torsional responses, which cannot be explained in numerical simulations for translational pounding alone.

000012022 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012022 653__ $$aSeismic pounding, Torsion, Chaotic, Numerical simulation

000012022 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012022 720__ $$aWang, L.X.$$iChau, K.T.
000012022 8560_ $$ffischerc@itam.cas.cz
000012022 8564_ $$s395501$$uhttps://invenio.itam.cas.cz/record/12022/files/14-0093.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0093.
000012022 962__ $$r9324
000012022 980__ $$aPAPER