MODELING BOND STRENGTH OF CORRODED REINFORCEMENT WITH CONFINEMENT STIRRUPS

摘要：

Bond strength of corroded bars in reinforced concrete specimens with confinementstirrups is theoretically modeled. Corrosion pressure due to expansive action of corrosionproducts before and after corrosion cracking is estimated by considering the influence ofconfining action of the stirrups. Effective depth of concrete cover for specimens with thestirrups is introduced,and bond strength of corroded bars is predicted and compared with thecorresponding test results. Good agreement between calculated results and test results isobtained. Beyond cover cracking,for specimens with densely-spaced stirrups,little reductionof bond strength is showed due to the sufficient confining action of stirrups; while for widely-spaced stirrups,reduction of bond strength occurs.

关键词： bond strength corrosion pressure concrete cover confinement stirrups

作者: Wang X. H. Author Liu X. L. Coauthor

作者单位: Department of Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,PR China

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 903-908

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）