Study on the Connecting Length of CFRP

International Conference on Smart Engineering Materials 2018

Liu, Xiongfei^1 ; Li, Yue^1 ; Li, Zhanguo^1

Key Laboratory of Urban Security and Disaster Engineering, MOE, Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing

100124, China^1

关键词: Binding properties;    Bond materials;    Confined concrete columns;    Experiment parameters;    Modified epoxy;    Ultimate strength;    Ultimate tensile strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/362/1/012013/pdf
DOI  :  10.1088/1757-899X/362/1/012013

来源: IOP

【 摘 要 】

The paper studied the varying mode of shear stress in the connecting zone of CFRP. Using epoxy resin (EP) as bond material, performance of specimens with different connecting length of CFRP was tested to obtain the conclusion. CFRP-confined concrete column was tested subsequently to verify the conclusion. The results show that: (1) The binding properties of modified epoxy resin with CFRP is good; (2) As the connecting length increased, the ultimate tensile strength of CFRP increased as well in the range of the experiment parameters; (3) Tensile strength of CFRP can reach the ultimate strength when the connecting length is 90mm;(4) The connecting length of 90mm of CFRP meet the reinforcement requirements.