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《World Earthquake Engineering》 2008-01
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Research on the corrosion fatigue of reinforced concrete based on interfacial fatigue theory

LIU Ying-li CHEN Yan-hua SU You-po(Institute of Civil Engineering,Hebei Polytechnic University,Tangshan 063009,China)  
CF(Corrosion fatigue) is one of major factors for reinforced concrete damage.Based on a shear-lag model and experimental loading mode,interfacial crack propagation under CF is investigated,in which frictional coefficient degradation,stress ratio and loading frequency are considered.By modifying Paris formula,the CF model is given,and relationship among debond rate,debond length and cyclic number is obtained.Also,considering concrete damage,factors influencing interfacial crack propagation of CF are analyzed,which are the stress ratio and the loading frequency.
【CateGory Index】: TU375
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