Numerical investigation on the seismic retrofitting of RC beam-column connections using flange-bonded CFRP composites

Eslami, A. and Ronagh, H. R. (2016) Numerical investigation on the seismic retrofitting of RC beam-column connections using flange-bonded CFRP composites. Journal of Composites for Construction, 20 1: 04015032-1-04015032-9. doi:10.1061/(ASCE)CC.1943-5614.0000590


Author Eslami, A.
Ronagh, H. R.
Title Numerical investigation on the seismic retrofitting of RC beam-column connections using flange-bonded CFRP composites
Journal name Journal of Composites for Construction   Check publisher's open access policy
ISSN 1090-0268
1943-5614
Publication date 2016-02-01
Year available 2015
Sub-type Article (original research)
DOI 10.1061/(ASCE)CC.1943-5614.0000590
Open Access Status Not Open Access
Volume 20
Issue 1
Start page 04015032-1
End page 04015032-9
Total pages 9
Place of publication Reston, VA United States
Publisher American Society of Civil Engineers
Collection year 2016
Language eng
Abstract This paper evaluated the capability of nonlinear finite-element (FE) analysis to estimate the seismic responses of reinforced concrete (RC) beam–column connections retrofitted using externally bonded carbon fiber–reinforced polymer (CFRP). As the case studies, a series of the seismically detailed scaled-down (1/2.85) specimens tested previously under either monotonic or cyclic loading were selected and nonlinear FE models were developed to regenerate the experimental results. In order to mimic the practical application in the experimental program the CFRP composites were applied on the top and bottom (flange) sides of the beam with the aim of increasing the flexural strength. The nonlinear FE analyses were performed to consider material and geometric nonlinearity whereas the material properties were obtained from the standard experimental tests on the concrete and steel reinforcements. The accuracy of the numerical results was evaluated by comparing results with those obtained from the experimental tests in terms of the load-displacement curve and failure mechanism. A good agreement was observed between the numerical and experimental results, particularly in estimating the ultimate strength and plastic hinge location of control and retrofitted specimens. Results indicated the reliability of the suggested nonlinear FE analysis as a cost-effective tool for parametric studies of RC beam–column connections retrofitted using flange-bonded CFRP.
Keyword Carbon fiber-reinforced polymer (CFRP) retrofitting
RC beam-column connections
Plastic hinge
Hysteretic behavior
Nonlinear finite-element (FE) analysis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2016 Collection
 
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