Prestress Transfer in NSM CFRP-Strengthened RC Structures Under Curing and Service Temperature Effects: Experimental Validation and Analytical Modeling
Science and Technology Innovation Demonstration Project of the Yunnan Provincial Department of Transportation; Open Fund of National-Local Joint Laboratory of Engineering Technology for Long-term Performance enhancement of Bridges in Southern District (Changsha University of Science Technology) [25KE05]; National Natural Science Foundation of China [52578164, 52478299]; Yunnan Digital Technology Innovation Centre of Modern Integrated Transportation [202405AK340003]; [2023-83(4)]
机构署名：
本校为通讯机构
院系归属：
土木工程学院
摘要：
This study examines the prestress transmission behavior in near-surface-mounted (NSM) carbon fiber-reinforced polymer (CFRP)-strengthened reinforced concrete structures, with particular emphasis on the effects of temperature. Experimental tests were conducted to evaluate the tensile and shear properties of epoxy adhesives under a range of curing temperatures (20-100 degrees C) and ambient service temperatures (0-80 degrees C). The results reveal an inverse exponential relationship between curing time and temperature. Notably, adhesive strength declines significantly above 60 degrees C and the ...
