Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.engstruct.2012.08.010
Title: Buckling strength of slender circular tubular steel braces strengthened by CFRP
Authors: Gao, X.Y.
Balendra, T. 
Koh, C.G. 
Keywords: Buckling
CFRP
Composite materials
Retrofitting
Steel slender braces
Issue Date: Jan-2013
Source: Gao, X.Y., Balendra, T., Koh, C.G. (2013-01). Buckling strength of slender circular tubular steel braces strengthened by CFRP. Engineering Structures 46 : 547-556. ScholarBank@NUS Repository. https://doi.org/10.1016/j.engstruct.2012.08.010
Abstract: Although the application of carbon fibre reinforced polymer (CFRP) on strengthening of concrete structures have been reported widely, there are relatively few applications to steel structures, especially to tubular steel structures. In order to investigate the performance of circular tubular steel braces retrofitted with CFRP, long hot finished circular hollow steel braces (88.9. mm. ×. 4. mm) wrapped with CFRP sheets are tested to study the effects of CFRP on overall buckling behavior. Based on the experimental results, a numerical model has been developed to predict the axial load capacity, lateral and axial displacements accounting for the initial out-of-straightness, material and geometric nonlinearities. It is found that CFRP layers could increase both the strength and stiffness of the brace considerably. © 2012 Elsevier Ltd.
Source Title: Engineering Structures
URI: http://scholarbank.nus.edu.sg/handle/10635/58975
ISSN: 01410296
DOI: 10.1016/j.engstruct.2012.08.010
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