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Haldar, Achintya
- Seismic Reduction Factor Evaluation and its Components for Steel Buildings Undergoing Nonlinear Deformations
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Authors
Alfredo Reyes-Salazar
1,
Eden Bojórquez
2,
Juan Bojórquez
2,
Federico Valenzuela-Beltran
3,
J. Ramon Gaxiola-Camacho
2,
Achintya Haldar
4
Affiliations
1 Universidad Autonoma de Sinaloa, Culiacan, Sinaloa CP 80040
2 Universidad Autonoma de Sinaloa, Culiacan, Sinaloa CP 80040, MX
3 Instituto de Ingeniería, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico CP 04510, MX
4 Department of Civil Engineering and Engineering Mechanics, University of Arizona, Tucson CP 85721, Arizona, US
1 Universidad Autonoma de Sinaloa, Culiacan, Sinaloa CP 80040
2 Universidad Autonoma de Sinaloa, Culiacan, Sinaloa CP 80040, MX
3 Instituto de Ingeniería, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico CP 04510, MX
4 Department of Civil Engineering and Engineering Mechanics, University of Arizona, Tucson CP 85721, Arizona, US
Source
Current Science, Vol 116, No 11 (2019), Pagination: 1850-1860Abstract
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.Keywords
Damping, Ductility, Force Reduction Factors, Nonlinear Deformations, Steel Buildings.Full Text
References
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