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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.8 P.616-626


Estimating seismic demand parameters using the endurance time method

Author(s):  Ramin Madarshahian, Homayoon Estekanchi, Akbar Mahvashmohammadi

Affiliation(s):  Department of Civil Engineering, Sharif University of Technology, Tehran 11155, Iran, ATLSS Center, Department of Civil and Environmental Engineering, Lehigh University, Bethlehem, PA 18015, USA

Corresponding email(s):   madarshahian@civil.sharif.edu

Key Words:  Endurance time (ET) method, Nonlinear static pushover (NSP), Nonlinear dynamic analysis (NDA), Target displacement

Ramin Madarshahian, Homayoon Estekanchi, Akbar Mahvashmohammadi. Estimating seismic demand parameters using the endurance time method[J]. Journal of Zhejiang University Science A, 2011, 12(8): 616-626.

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journal="Journal of Zhejiang University Science A",
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%T Estimating seismic demand parameters using the endurance time method
%A Ramin Madarshahian
%A Homayoon Estekanchi
%A Akbar Mahvashmohammadi
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 8
%P 616-626
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%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1000389

T1 - Estimating seismic demand parameters using the endurance time method
A1 - Ramin Madarshahian
A1 - Homayoon Estekanchi
A1 - Akbar Mahvashmohammadi
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 8
SP - 616
EP - 626
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1000389

The endurance time (ET) method is a time history based dynamic analysis in which structures are subjected to gradually intensifying excitations and their performances are judged based on their responses at various excitation levels. Using this method, the computational effort required for estimating probable seismic demand parameters can be reduced by an order of magnitude. Calculation of the maximum displacement or target displacement is a basic requirement for estimating performance based on structural design. The purpose of this paper is to compare the results of the nonlinear ET method with the nonlinear static pushover (NSP) method of FEMA 356 by evaluating performances and target displacements of steel frames. This study will lead to a deeper insight into the capabilities and limitations of the ET method. The results are further compared with those of the standard nonlinear response history analysis. We conclude that results from the ET analysis are in proper agreement with those from standard procedures.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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