Experimental study on FRP-to-concrete bonded joints |
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| Affiliation: | 1. Department of Civil Engineering, Zhejiang University, Hangzhou, 310027, P.R. China;2. Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, China;3. Institute for Infrastructure and Environment, School of Engineering and Electronics, Edinburgh University, Alexander Graham Bell Building, The King''s Buildings, Edinburgh EH9 3JN, UK;1. Dept. of Civil and Environmental Engineering, The University of Auckland, New Zealand;2. School of Civil, Environmental and Mining Engineering, University of Adelaide, Australia;1. Dept. of Civil, Construction and Environmental Engineering, Marquette University, USA;2. Dept. of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region;3. School of Engineering, RMIT University, Australia;1. Centre for Infrastructural Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University, Australia, Kent Street, Bentley, WA, 6102, Australia;2. School of Civil Engineering, Guangzhou University, Guangzhou, 510006, China;1. UNIC, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal;2. Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal;1. Engineering Department, University of Napoli ‘Parthenope’, Centro Direzionale, Isola C4, 80143 Napoli, Italy;2. Engineering Department, University of Sannio, Piazza Roma, 21, 82100 Benevento, Italy;1. Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI 48202, USA;2. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China |
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| Abstract: | The behaviour of bond between FRP and concrete is a key factor controlling the behaviour of concrete structures strengthened with FRP composites. This article presents an experimental study on the bond shear strength between FRP and concrete using a near-end supported (NES) single-shear pull test. The test results are found to be in close agreement with the predictions of Chen and Teng's J. Struct. Eng. 127(2001) 784] bond strength model, which mutually verifies the reliability of both the test method and the Chen and Teng model in general. The NES single-shear pull test, given its simplicity and reliability, is therefore a good candidate as a standard bond test. The test results also showed that Chen and Teng's J. Struct. Eng. 127(2001) 784] bond strength model is slightly conservative when the FRP-to-concrete width ratios are at the two extremes, but this small weakness can be easily removed when more test results of good quality become available. |
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