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Title:Seismic Design and Evaluation of Multistory Buildings using Yield Point Spectra
Author(s):Black, Edgar F.; Aschheim, Mark
Subject(s):MAE Center
Seismic Design
Yield Point Spectra
Abstract:Constant ductility response spectra are presented for 15 recorded earthquakes ground motions using the Yield Point Spectra (YPS) representation. Yield Point Spectra are used for analysis and design of SDOF structures. The spectra were computed for bilinear and stiffness degrading load-deformation models, for displacement ductilities equal to 1, 2, 4 and 8. A methodology for the performance-based seismic design of regular multistory buildings using Yield Point Spectra is described. The methodology is formulated to make use of current code approaches as much as possible while allowing the design engineer to limit the peak displacement response and, to some extent, the peak interstory drift to user-specified values. To achieve this objective, the design methodology makes use of an equivalent SDOF model of the building. A method to estimate peak displacement response and interstory drift indices of multistory buildings using YPS and establish SDOF formulations is also presented. The method may be considered a new nonlinear static procedure (NSP). Interstory drift indices (IDIs) are estimated using deformed shapes of the building based on the first mode shape and combinations of the first and second mode shapes.
Issue Date:2000-08
Series/Report:Mid-America Earthquake Center CD Release 00-04
Sponsor:National Science Foundation EEC-9701785
Date Available in IDEALS:2008-12-08

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