@article{scholars694, number = {5}, volume = {162}, note = {cited By 3}, doi = {10.1680/stbu.2009.162.5.355}, title = {Fatigue behaviour of CFRP concrete joints under shear}, year = {2009}, publisher = {ICE Publishing Ltd}, journal = {Proceedings of the Institution of Civil Engineers: Structures and Buildings}, pages = {355--364}, issn = {09650911}, author = {Mahmoud, L. and Shafiq, N. and Nureldin, M. F. and Thanoon, A. M. W.}, keywords = {Carbon fiber reinforced plastics; Carbon fibers; Fatigue of materials; Fiber reinforced plastics; Materials testing; Reinforced concrete; Shear stress; Stress analysis, Carbon fibre reinforced polymer; Concrete interface; Cyclic shear loading; Experimental set up; Fatigue behaviour; Mathematical formulation; Strength and testing of materials; Structural concretes, Stiffness, carbon; concrete structure; cyclic loading; fatigue; polymer; reinforced concrete; shear strength; shear stress; stiffness; stress analysis}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-77957700133&doi=10.1680\%2fstbu.2009.162.5.355&partnerID=40&md5=c6ba00d3a5089e28d4e11c4e0a0d9e28}, abstract = {This paper proposes a new methodology for determining stiffness and degradation of stiffness at the interface between externally bonded carbon-fibre-reinforced polymer (CFRP) and structural concrete under cyclic shear loading. In this paper an experimental programme consisting of 14 push-off specimens has been conducted. The CFRP composite strips were used to strengthen concrete externally at a known failure plane to resist shear stresses in shear friction. The test set-up and supports were designed such that there is a direct shear at the CFRP-to-concrete interface. This paper describes the experimental set-up and test parameters. Experimental results for cyclic bond stress-slip behaviour, mathematical formulations for stiffness of interface and its degradation as the number of cycles increased have been obtained and discussed.} }