000018751 001__ 18751
000018751 005__ 20170118182239.0
000018751 04107 $$aeng
000018751 046__ $$k2017-01-09
000018751 100__ $$aVerma, Abhishek
000018751 24500 $$aEstimation of Lateral Force Contribution of Boundary Elements in Steel Plate Shear Wall Systems

000018751 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018751 260__ $$b
000018751 506__ $$arestricted
000018751 520__ $$2eng$$aSteel plate shear walls (SPSWs) are used as lateral force-resisting systems in new and retrofitted structures in high-seismic regions. Various international codes recommend the design of SPSWs assuming the entire lateral load to be resisted by the infill plates. Such a design procedure results in significant over-strength leading to uneconomical and inefficient use of materials. This study is focused on the estimation of contribution of boundary elements in resisting the lateral force considering their interaction with the web plates of SPSW systems. Initially, the relative contribution of web plates and boundary frames is computed for a single-bay single-story frame with varying rigidity and end connections of boundary elements. Nonlinear static analyses are carried out for the analytical models in OPENSEES platform to quantify this contribution. Later, this study is extended to the code-based designed 3-, 6- and 9-story SPSWs of varying aspect ratios. Based on the results obtained, a new design procedure is proposed taking the lateral strengths of the boundary frames into account. Nonlinear time-history analyses are conducted for forty recorded ground motions representing the DBE and MCE hazard levels to compare the interstory and residual drift response and yield mechanisms of SPSWs designed as per current practice and the proposed methodology. Finally, an expression has been proposed to predict the lateral force contribution of the infill plate and the boundary frame of SPSWs.

000018751 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018751 653__ $$aBoundary elements; Lateral force; Seismic analysis; Seismic design; Steel plate shear wall.

000018751 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018751 720__ $$aVerma, Abhishek$$iSahoo, Dipti Ranjan
000018751 8560_ $$ffischerc@itam.cas.cz
000018751 8564_ $$s477392$$uhttps://invenio.itam.cas.cz/record/18751/files/2148.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2148.
000018751 962__ $$r16048
000018751 980__ $$aPAPER