مقاوم سازی سازه های بتنی -

Aspects of behaviour of CFRP reinforced concrete beams in bending

Muhammad Masood Rafi *, Ali Nadjai, Faris Ali, Didier Talamona

Fire Safety Engineering Research & Technology Centre (FireSERT), University of Ulster at Jordanstown, Shore Road, Newtownabbey BT37 0QB, UK

Received 13 February 2006; received in revised form 24 July 2006; accepted 30 August 2006

Available online 18 October 2006

Abstract

The corrosion of steel poses a serious problem to the durability of reinforced concrete structures and fibre reinforced polymer (FRP) has emerged as a potential alternative material to the traditional steel. The results of a test series consisting of carbon FRP (CFRP) and steel bars reinforced concrete beams are reported in this paper. The results indicated that the behaviour of CFRP and steel reinforced beams was similar in many aspects. Both type of beams failed in their predicted modes of failure. The strength design method underestimated nominal moment capacity of CFRP reinforced beams. The deflection of CFRP reinforced beams was satisfactory at service load level, corresponding to theoretical load capacity. The deformability factor of CFRP reinforced beams was more than 6 indicating their ductile nature of failure. 2006 Elsevier Ltd. All rights reserved.

Keywords: Fibre reinforced polymer; Carbon FRP; Mode of failure; Concrete beams; Reinforcement; Moment; Deflection; Deformability

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Construction and Building Materials 22 (2008) 277–285

نوشته شده توسط حمید در شنبه چهارم اسفند 1386 ساعت 22:4 | لینک ثابت |