Experimental Prediction of Fatigue Life for RC Beam Strengthened with CFL

Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (4): 1-4.

• Mechanics • Next Articles

Experimental Prediction of Fatigue Life for RC Beam Strengthened with CFL

Niu Peng-zhi Huang Pei-yan Yang Yi Lin Rong-wei

College of Traffic and Communications,South China UnivY/Lin Rong-weiof Tech.,Guangzhou 510640,Guangdong,China

Online:2006-04-25 Published:2006-04-25
Contact: 牛鹏志(1978-)，男，博士生，主要从事疲劳与断裂力学和FRP片材加固技术研究． E-mail:pyhuang@scut.edu.cn
About author:牛鹏志(1978-)，男，博士生，主要从事疲劳与断裂力学和FRP片材加固技术研究．
Supported by:
国家自然科学基金资助项目(10272047)；广东省自然科学基金资助项目(020856)

Abstract

Abstract:

Fatigue tests for 23 RC beams(1 850 mm×1 00 mnl×200 mm)strengthened with carbon fiber laminates (CFLs)under the bending loads divided to 5 groups were carried out.The relationships among the mid-span deflection,the fatigue cycle,the fatigue loading level and the fatigue life were then investigated,and a set of linear expressions were obtained.Based on these linear expressions,a new experimental method is developed to predict
the fatigue life of RC beam strengthened with CFL,that is,to predict the fatigue life by loading the RC beam with some circulatory nondestructive loads under a appointed fatigue loading level,with a recommended cyclic number of 10 ~l 000.

Key words: carbon fiber laminate, RC beam, fatigue, life prediction, mid-span deflection

Niu Peng-zhi Huang Pei-yan Yang Yi Lin Rong-wei. Experimental Prediction of Fatigue Life for RC Beam Strengthened with CFL[J]. Journal of South China University of Technology (Natural Science Edition), 2006, 34(4): 1-4.

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Experimental Prediction of Fatigue Life for RC Beam Strengthened with CFL

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