000018942 001__ 18942
000018942 005__ 20170118182249.0
000018942 04107 $$aeng
000018942 046__ $$k2017-01-09
000018942 100__ $$aValigura, Jakub
000018942 24500 $$aStructural Models for Centrifuge Testing of Liquefaction-Related Building Damage

000018942 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018942 260__ $$b
000018942 506__ $$arestricted
000018942 520__ $$2eng$$aThis paper describes the design of more realistic structural models for centrifuge experiments that are used to characterize the response of damageable structures on liquefiable soils. These experiments are needed because seismic design of structures commonly ignores soil-structure interaction, while techniques for evaluation and mitigation of liquefaction generally fail to consider potential damage to the structure and inertial interaction effects. Here, a three-story steel moment frame was designed based on code requirements and subsequently simplified and scaled for centrifuge experiments. Component tests were performed at 1g and 70g of centrifugal acceleration to characterize the nonlinear properties of beamcolumn subassemblies. The model structure was then placed on a layered soil deposit, including a liquefiable layer, in centrifuge. Results in terms of moment-rotation were obtained experimentally from component tests as well as the centrifuge experiment, which were compared with OpenSees simulations performed during design. As expected, the behavior of the components at 1g and 70g were similar. The structure did not experience any damage and remained essentially elastic when founded on liquefiable ground, because energy was dissipated through settlement and tilt; inelastic structural response, however, is possible when if liquefaction is mitigated. The response was also found to agree well with the OpenSees model.

000018942 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018942 653__ $$aSoil Structure Interaction; Steel Frames; Centrifuge; Liquefaction; Pushover.

000018942 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018942 720__ $$aValigura, Jakub$$iLiel, Abbie$$iOlarte, Juan$$iDashti, Shideh$$iScheetz, Rebecca$$iElfejji, Jalila
000018942 8560_ $$ffischerc@itam.cas.cz
000018942 8564_ $$s356671$$uhttps://invenio.itam.cas.cz/record/18942/files/2535.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2535.
000018942 962__ $$r16048
000018942 980__ $$aPAPER