Vibration Characteristics of BFRP Cables for Long-span Cable-stayed Bridges

摘要：

　　The vibration characteristics of basalt fiber reinforced polymer (BFRP) cable in cable-stayed bridge with a main span of 1088 m were investigated by reduced scale dynamic test.The test was designed accord ing to similarity criteria referring to the prototype of the Su-tong Bridge.The vibration characteristics of BFRP and steel cable were obtained by free vibration decaying method.The natural frequency, modal damp ing ratios of BFRP cables were compared to those of steel cables.The results show that the primary natural frequency of BFRP cable is higher than the frequencies of primary modes of the bridge, which lowers the probability of cable-deck resonance.The results of modal damping ratios of the BFRP cable indicate that the damping properties of BFRP cable are superior than that of the steel cable, which makes the BFRP cable more advantages in enhancing the dynamic stability of the cable-stayed bridge.

作者: Yaqiang Yang Xin Wang Zhishen Wu Gang Wu

作者单位: International Institute for Urban Systems Engineering, Southeast University, Nanjing, China International Institute for Urban Systems Engineering, Southeast University, Nanjing, China; School

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 739-746

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）