TY - JOUR
T1 - Seismic reduction factor evaluation and its components for steel buildings undergoing nonlinear deformations
AU - Reyes-Salazar, Alfredo
AU - Bojórquez, Eden
AU - Bojórquez, Juan
AU - Valenzuela-Beltran, Federico
AU - Gaxiola-Camacho, J. Ramon
AU - Haldar, Achintya
N1 - Funding Information:
ACKNOWLEDGEMENTS. This research received financial support from Universidad Autónoma de Sinaloa, México under grant PROFAPI 2015/235. The conclusions made in this publication are those of the authors and do not reflect the opinions of the sponsors.
Publisher Copyright:
© 2019, Current Science All Rights Reserved.
PY - 2019/6/10
Y1 - 2019/6/10
N2 - The force reduction factor (R) and its components for steel buildings are evaluated in this study. The R factor for single-degree-of-freedom models produces non-conservative designs. The global R values can be very different than the local ones. The contribution of damping to R is much more uniformly distributed and different than that of yield, implying that the latter should not be expressed in terms of viscous damping. The value of 8 specified in the codes for R is justified only for low-rise buildings and global parameters, if viscous damping is considered. If damping is not considered, this value cannot be justified in any case, a value of 6 is recommended.
AB - The force reduction factor (R) and its components for steel buildings are evaluated in this study. The R factor for single-degree-of-freedom models produces non-conservative designs. The global R values can be very different than the local ones. The contribution of damping to R is much more uniformly distributed and different than that of yield, implying that the latter should not be expressed in terms of viscous damping. The value of 8 specified in the codes for R is justified only for low-rise buildings and global parameters, if viscous damping is considered. If damping is not considered, this value cannot be justified in any case, a value of 6 is recommended.
KW - Damping, ductility
KW - force reduction factors
KW - nonlinear deformations
KW - steel buildings
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U2 - 10.18520/cs/v116/i11/1850-1860
DO - 10.18520/cs/v116/i11/1850-1860
M3 - Article
AN - SCOPUS:85104842906
SN - 0011-3891
VL - 116
SP - 1850
EP - 1860
JO - Current Science
JF - Current Science
IS - 11
ER -