Effects of cross-sectional shape on the reliability of RC columns

Baji, Hassan and Ronagh, Hamid Reza (2011) Effects of cross-sectional shape on the reliability of RC columns. Structural Concrete, 12 4: 262-269. doi:10.1002/suco.201100019

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Author Baji, Hassan
Ronagh, Hamid Reza
Title Effects of cross-sectional shape on the reliability of RC columns
Journal name Structural Concrete   Check publisher's open access policy
ISSN 1464-4177
Publication date 2011-12
Sub-type Article (original research)
DOI 10.1002/suco.201100019
Volume 12
Issue 4
Start page 262
End page 269
Total pages 8
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2012
Language eng
Abstract This paper studies the effects of cross-sectional shape and rebar configuration on the reliability indices of concrete columns. Three sections with rectangular, square and circular shapes are selected. Using the Monte Carlo simulation technique, the statistical parameters for reinforced column resistance are calculated along several load eccentricities using the most recent statistical data available in the literature. The statistical parameters show that the magnitude and the variation of bias factors and the coefficients of variation are not similar for the sections selected. The coefficients of variation of the square and circular sections are greater than that of the rectangular section. The results of reliability analysis indicate the importance of sectional shape, especially at low load eccentricities. In some cases, the effect of cross-sectional shape or reinforcement configuration is found to be more important than the effect of the compressive strength of the concrete. It is recommended to include the shape factor and the reinforcement configuration in the code calibration process for the capacity reduction factors.
Keyword Load combinations
Limit states
Reliability index
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2012 Collection
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Created: Sun, 15 Jan 2012, 15:46:36 EST by System User on behalf of School of Civil Engineering