FINITE-ELEMENT STUDY ON THE INTERFACIAL STRESSES OF STEEL-CONCRETE COMPOSITE BEAMS STRENGTHENED WITH A PRESTRES-SED CFRP PLATE

摘要：

In this paper,finite-element (FE) method was used to calculate the interfacial stresses of the steelconcrete composite beams strengthened with a prestressed CFRP plate under concentrated load and temperature load. Two prestressed strengthening method,including prestressed FRP strengthening and load-relief jacking,are considered. The results show that: (1) the stress concentrations occur for all the cases and the stress distributions are similar; (2) the load transfer is more uniform for the mechanical load and load-relief jacking cases than the thermal load and prestressed FRP strengthening cases; (3) the maximum stresses caused by the load-release jacking is far less than other cases. FE analysis has been employed to validate the results from the analytical solutions,and the agreement between the results obtained from the different solutions is good.

关键词： CFRP Steel-concrete composite beams Interfacial stress Finite element analysis

作者: Jun Deng Li-Fang Ouyang

作者单位: Faculty of Civil & Transportation Engineering, Guangdong University of Technology,Guangzhou 510006,P School of Civil Engineering & Transportation,South China University of Technology,Guangzhou 510640,P

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 531-534

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）