Experimental Study of Strengthening for Increased Shear Bearing Capacity
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VIEW THE REPLYPublication: Journal of Composites for Construction
Volume 9, Issue 6
Abstract
The need for structural rehabilitation of concrete structures all over the world is well known, and a great amount of research is going on in this field. The use of carbon fiber-reinforced polymer (CFRP) plate bonding has been shown to be a competitive method with regard to both structural performance and economic factors. This method consists of bonding a thin carbon-fiber laminate or sheet to the surface of the structure to act as an outer reinforcement layer. However, most research in this area has been undertaken to study flexural behavior. This paper deals with shear strengthening of reinforced concrete members by use of CFRP. Tests on rectangular beams 3.5 to 4.5 m long have been undertaken to study different parameters, such as fatigue, anchorage, and others. The strain field in shear spans of beams simultaneously subjected to shear and bending is also studied. The tests presented also contribute to the existing literature on tests of concrete members strengthened for increased shear capacity.
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Acknowledgments
Lars-Erik Lundbergs Foundation, The Swedish Building and Development Fund, J Gust Richert Foundation, and Skanska AB have provided financial support. For help with the laboratory tests, special attention should be given to Håkan Johansson, Lars Åström, and Georg Danielsson at Testlab, Luleå University of Technology. The assistance of Professor Lennart Elfgren is also greatly appreciated. Last but not least, the students Abderahim Aboudrar, Anders Johansson, Peter Mattsson, Jon Rödsätre, and Andy Hägglund should be thanked for their energy and collaboration skills during the laboratory work.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 9 • Issue 6 • December 2005
Pages: 488 - 496
Copyright
© 2005 ASCE.
History
Received: May 14, 2003
Accepted: Mar 7, 2005
Published online: Dec 1, 2005
Published in print: Dec 2005
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