STUDY ON THE MECHANICAL PROPERTIES OF CORRODED UNBONDED P.C. STEEL STRAND

摘要：

Based on the accelerated corrosion testing, mechanical properties of Unbonded P.C. steel strand corroded were studied, affection of corrosion on nominal ultimate strength, nominal elastic modulus and elongation of steel strand was analyzed in different corrosion environment and conditions, mathematical expression of corrosion ratio and nominal ultimate strength, nominal elastic modulus, elongation of steel strand were built，corrosion steel strand stress-strain constitutive relation was further put forward. the causes of steel strand sensitive to carrion were further analyzed, the corrosion and damage analysis model and damage thresholds of steel strand was put forward, the experiment and research of the thesis lay foundation for durability evaluation of Unbonded P.C. steel strand.

关键词： Corrosion steel strand mechanical properties damage rate

作者: Xiao-Yong Luo Zheng Li Zhi-Wu Yu

作者单位: College of Civil Engineering and Architecture,Central South University,Changsha 410075

会议类型: 国际会议

会议名称: The 4th Internatiuonal Symposium on Lifetime Engineering of Civil Infrastructure(第四届土木工程结构生命周期国际学术研讨会)

会议地点: 长沙

会议语种:英文

页码: 130-137

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）