Assessment of Redundancy Factors for the Seismic Design of Special Moment Resisting Reinforced Concrete Frames

Abstract A parametric study devoted to assess the impact of increasing the structural redundancy in ductile reinforced concrete (RC) moment framed buildings is presented. Among the studied variables were the number of stories and the number of bays. Studied models were 4, 8, 12 and 16-story frames w...

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Bibliographic Details
Published in:Latin American journal of solids and structures 2015-12, Vol.12 (12), p.2330-2350
Main Authors: Tena-Colunga, Arturo, Cortés-Benítez, José Antonio
Format: Article
Language:English
Subjects:
ductility
ENGINEERING, CIVIL
ENGINEERING, MECHANICAL
MECHANICS
overstrength
redundancy factor
reinforced concrete moment frames
seismic codes
structural redundancy
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Summary:Abstract A parametric study devoted to assess the impact of increasing the structural redundancy in ductile reinforced concrete (RC) moment framed buildings is presented. Among the studied variables were the number of stories and the number of bays. Studied models were 4, 8, 12 and 16-story frames with a story height h=3.5 m (11.5 ft). Nonlinear static analyses were used to evaluate numerically redundancy factors. Based on the results of this research and previous studies reported in the literature, it can be concluded that it is justified to account directly structural redundancy in the design by using a redundancy factor, as proposed and done in some international building codes.
ISSN:1679-7825
1679-7825
DOI:10.1590/1679-78251800