Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27284
Title: Spalling of concrete cover of fiber-reinforced polymer reinforced concrete under thermal loads
Authors: Wong, YL
Fu, YF
Poon, CS 
Tang, CA
Keywords: Concrete cover spalling
Fibre-reinforced polymer
Numerical simulation
Reinforced concrete
Temperature increment
Thermal mismatch
Issue Date: 2006
Publisher: Springer
Source: Materials and structures (Materiaux et constructions), 2006, v. 39, no. 294, p. 991-999 How to cite?
Journal: Materials and structures (Materiaux et constructions) 
Abstract: A unite element method using a proposed mesoscopic thermoelastic damage model (MTED) is verified for simulating the cracking process of a concrete section reinforced with fibre-reinforced polymer (FRP) bars. The cracking was due to the significant difference in thermal expansion properties between the concrete and the FRP materials at elevated temperatures. The numerical study reveals that although a conventional elastic analytical method can provide good estimates of the critical temperature increment of concrete cover failure of a cylindrical concrete section that is reinforced with a single bar, it gives too conservative predictions for typical rectangular sections with multiple bars. The study also shows that the concrete cover and the horizontal bar spacing have more influence than the vertical bar spacing on the determination of the critical temperature increments. Horizontal lapping of bars significantly lowers the critical temperature increment.
URI: http://hdl.handle.net/10397/27284
ISSN: 1359-5997
EISSN: 1871-6873
DOI: 10.1617/s11527-005-9032-5
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