NUMERICAL BEHAVIORS OF CONCRETE MEMBERS EXTERNALLY PRESTRESSED WITH CFRP TENDONS EXPOSED TO FIRE

摘要：

　　Due to the high performance of carbon fiber reinforced polymer(CFRP),such as high tensile strength,corrosion resistance and light weight,CFRP is widely used in buildings,bridges and infrastructure.However,its deterioration of mechanical properties at elevated temperature limits its further application.In this paper,the fire resistance of concrete members externally prestressed with CFRP tendons(CMEPC)is analyzed and studied by different protective measures.The results show the insulation systems can effectively protect the CFRP tendons and reduce the deflection of CMEPC at elevated temperature.At the same time,the finite element analysis is carried out by using Abaqus software.The ultimate bearing capacity and deflection characteristics of concrete members prestressed with unbonded CFRP tendons in fire are in good agreement with the experimental data.Research results provide the basis for the practical application of CFRP tendons.

关键词： carbon fibre reinforced polymer finite element modelling insulation systems externally prestressed concrete members fire resistance performance

作者: Fei Zhou Jiwen Zhang Zhennan Yang

作者单位: Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education,Southeast University,Nanjing 210096,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: 1-5

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）