PREDICTED METHOD OF FATIGUE LIVES OF RC STRUCTURES STRENGTHENED WITH CFL UNDER RANDOM LOAD

摘要：

Investigation on fatigue lives of reinforced concrete (RC) structures strengthened with fiber laminate under random loads plays important roles in repair or strengthening of the bridge and assurance of the safe traffic. In this paper, the equivalent calculation method of the fatigue lives of RC structures strengthened with carbon fiber laminate under random loads was developed based on Miners fatigue damage cumulative theory. The probability distribution was obtained from statistic analysis of traffic load history, which was collected on a certain national highway in China. The parameter in Miners rule was determinate by S - N curve of the same structure under constant amplitude cyclic loads. This equivalent method can predict the fatigue life of RC structure under random loads through the fatigue properties under constant amplitude cyclic load.

关键词： Carbon fiber laminate predicted method fatigue life random load RC structure

作者: P. Y. Huang R. W. Lin C. Zhao X. Y. Guo X. H. Zheng

作者单位: College of Traffic and Communications, South China University of Technology, Guangzhou, China

会议类型: 国际会议

会议名称: 2007年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 上海

会议语种:英文

页码: 973-980

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）