Safety Assessment Method of Inclined Cables for Long-span Cable-stayed Bridges
In view of the fact that inclined cables of cable- stayed bridge are susceptible to corrosion and tend to become stress relaxation after long-term service, it is essential to take those damage effects into considerations in structural analysis to ensure the safety of the existing bridges. By introducing Lemaitres equivalent-strain principle and geometrical damage theory in this paper, a cable- damage model for safety assessment of inclined cables of long-span cable-stayed bridges are presented. With the approach in this paper, cable corrosion as well as stress relaxation has been taken into account, which leads to good precision and provides a new approach to assess the safely of cables in cable- stayed bridges, and it could be applied in structural health monitoring of long-span cable-stayed bridges.
Cable-stayed bridge Inclined cable Safety assessment Equivalent-strain principle Cable corrosion Stress relaxation
Juan Huang Ronghui Wang
College of Traffic and Communications, South China University of Technology, Guangzhou 510641, China
国际会议
南京
英文
253-257
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）