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Performance-based evaluation of the response reduction factor for ductile RC frames

DSpace at IIT Bombay

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Title Performance-based evaluation of the response reduction factor for ductile RC frames
 
Creator MONDAL, A
GHOSH, S
REDDY, GR
 
Subject Response reduction factor
Response modification factor
Behaviour factor
Performance-based evaluation
Plastic rotation capacity
Ductile detailing
CONFINED CONCRETE
BEHAVIOR FACTORS
STRENGTH
REINFORCEMENT
 
Description Most seismic design codes today include the nonlinear response of a structure implicitly through a 'response reduction/modification factor' (R). This factor allows a designer to use a linear elastic force-based design while accounting for nonlinear behaviour and deformation limits. This research focuses on estimating the actual values of this factor for realistic RC moment frame buildings designed and detailed following the Indian standards for seismic and RC designs and for ductile detailing, and comparing these values with the value suggested in the design code. The primary emphases are in a component-wise computation of R, the consideration of performance-based limits at both member and structure levels, a detailed modelling of the RC section behaviour, and the effects of various analysis and design considerations on R. Values of R are obtained for four realistic designs at two performance levels. The results show that the Indian standard recommends a higher than actual value of R, which is potentially dangerous. This paper also provides other significant conclusions and the limitations of this study. (C) 2013 Elsevier Ltd. All rights reserved.
 
Publisher ELSEVIER SCI LTD
 
Date 2014-10-15T15:26:25Z
2014-10-15T15:26:25Z
2013
 
Type Article
 
Identifier ENGINEERING STRUCTURES, 561808-1819
0141-0296
1873-7323
http://dx.doi.org/10.1016/j.engstruct.2013.07.038
http://dspace.library.iitb.ac.in/jspui/handle/100/15149
 
Language en