Nonlinear analysis of RPC box beam with unbonded prestressed CFRP tendons

摘要：

　　Carbon Fiber Reinforced Ploymers(CFRP)and Reactive Powder Concrete(RPC)have been successfully applied in civil engineering.When these two kinds of new high performance materials are combined with the application of unbonded prestress technology,it becomes a high efficient and durable prestressed concrete structure.This paper mainly presents nonlinear analysis of RPC box beam with unbonded prestressed CFRP tendons.Based on reasonable assumptions,the calculation equation of stress increments of unbonded CFRP tendons has been derived.According to this equation,the nonlinear numerical program was drawn up.Then the program calculats the whole process bending moment,curvature and the load deflection,and the calculated results are compared with some experimental results to verify their accuracy.Through this program,three important structural parameters of this box beam are analyzed to find the sensitive parameters which apparently influence the flexural capacity and ultimate deflection.

关键词： CFRP RPC unbonded prestress box beam nonlinear analysis

作者: Zhengmeng Huang Li Jia Zhi Fang

作者单位: College of Civil Engineering,Hunan University,Changsha,Hunan,China

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-4

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）