000019831 001__ 19831
000019831 005__ 20170118182338.0
000019831 04107 $$aeng
000019831 046__ $$k2017-01-09
000019831 100__ $$aGoings, Craig B.
000019831 24500 $$aParametric Study of Steel Moment Frames Considering Foundation Rocking

000019831 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019831 260__ $$b
000019831 506__ $$arestricted
000019831 520__ $$2eng$$aAllowing critical lateral force resisting components in a building structure, such as shear walls or frames, to rock and recenter under ground motion excitation have been proven through numerous experimental and analytical studies to improve the building’s overall seismic performance. This is achieved due to the protection of critical components and the enhanced energy dissipation characteristics developed through rocking, which can help reduce the building’s peak drifts, residual drifts, and peak floor accelerations, if properly designed. Additionally, the rocking behavior can reduce construction costs when compared to conventional designs incorporating deep foundation systems due to simplified construction details and smaller foundation sizes in the rocking system. This paper presents a parametric study of several conventionally-designed steel moment frame buildings analyzed considering rocking foundations. Steel Special Moment Resisting Frames consisting of 1, 2, and 3 bays in buildings of 3, 6, and 9 stories were designed per ASCE/SEI 7 for three levels of seismicity corresponding to three major cities in California. The resulting 27 building configurations were analyzed using 2dimensional frame models in SAP2000. A suite of 7 ground motion records with representative seismic characteristics for the three building sites was used to carry out nonlinear response history analysis of the frames. Peak roof displacements, peak roof accelerations, and base shear demands, among other response parameters, were compared for all building configurations. The study assesses the effects of key design parameters that can influence the performance of rocking systems, including the building height, lateral stiffness, and ground motion intensity. Important structural analysis results are presented in detail, showing how each variable affects the seismic behavior of the rocking system.

000019831 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019831 653__ $$aRocking foundation; seismic performance; nonlinear analysis; steel moment frame

000019831 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019831 720__ $$aGoings, Craig B.$$iAviram, Ady$$iSanchez, Jose A.$$iHarris, Stephen K.$$iMohr, Benjamin A.
000019831 8560_ $$ffischerc@itam.cas.cz
000019831 8564_ $$s904674$$uhttps://invenio.itam.cas.cz/record/19831/files/4502.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4502.
000019831 962__ $$r16048
000019831 980__ $$aPAPER