Seismic Design And Evaluation Of Multistory Buildings Using Yield Point Spectra

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Seismic Design And Evaluation Of Multistory Buildings Using Yield Point Spectra

Author: Edgar F. Black, Mark Aschheim | Size: 5.73 MB | Format: PDF | Publisher: University of Illinois at Urbana-Champaign | Year: 2000 | pages: 222

Seismic Design And Evaluation Of Multistory Buildings Using Yield Point Spectra

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.

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