000020213 001__ 20213
000020213 005__ 20170118182400.0
000020213 04107 $$aeng
000020213 046__ $$k2017-01-09
000020213 100__ $$aParamasivam, Balaji
000020213 24500 $$aPerformance of Inelastic, Shallow-Founded Structures on Liquefiable Ground and the Effectiveness of Mitigation Strategies

000020213 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020213 260__ $$b
000020213 506__ $$arestricted
000020213 520__ $$2eng$$aThe risk of damage to the built environment from liquefaction can be significant. Soil settlements and differential displacements coupled with ground shaking can cause significant damage to structures and lifelines. Yet, the influence of soil liquefaction and different remediation strategies on the performance and damage potential of structures is not well understood, hindering the development of an effective, performance-based mitigation methodology. This paper presents the results of a centrifuge experiment conducted at the University of Colorado Boulder, in which a 3-story building with potential for inelastic behavior was founded on a layered soil deposit, including a liquefiable layer. The influence of two mitigation techniques, enhanced drainage and in-ground structural confinement, on the performance of the building during earthquake loading was investigated. The test results showed that remediation with stiff structural walls can reduce permanent foundation settlement and rotation during less intense motion, but can amplify settlements during more intense shaking that cause liquefaction under the footing. In all cases, the structural wall amplifies transient foundation rotation. Enhanced drainage with vertical pre-fabricated drains reduces excess pore pressure generation under the structure as well as foundation settlement and rotation, but it increases the flexural drift and floor accelerations.

000020213 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020213 653__ $$aCentrifuge; Liquefaction; Inelastic Structures; Soil-Structure Interaction; Mitigation; Settlement;

000020213 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020213 720__ $$aParamasivam, Balaji$$iDashti, Shideh$$iLiel, Abbie$$iOlarte, Juan$$iJunior, Luciano Souza$$iGomes, Leonardo Soligo
000020213 8560_ $$ffischerc@itam.cas.cz
000020213 8564_ $$s1605491$$uhttps://invenio.itam.cas.cz/record/20213/files/757.pdf$$yOriginal version of the author's contribution as presented on USB, paper 757.
000020213 962__ $$r16048
000020213 980__ $$aPAPER