FLEXURAL BEHAVIOR OF COMPOSITE BEAMS FORMED WITH GFRP-CONCRETE DECKS AND STEEL MAIN GIRDERS
An experimental study was conducted on three steel-GFRP-concrete composite beams to investigate their flexural behavior.Each composite beam was made up of a steel main girder and a GFRPconcrete composite deck.The variables in the experimental program were the connection method and the number of shear studs.The test results showed that the composite beam JZ-1 which was formed by adhesive bond fails in shear fracture of the GFRP webs along the shear-bending area and a weak composite action was observed between the underneath steel main girder and the GFRP-concrete deck.Whereas,the composite beams(i.e.DS-2 and LS-3)which were formed with shear studs fail in the steel main girder yield followed by concrete crushing at the mid-span section and a solid composite action was achieved between the main girder and the GFRP-concrete deck.Although the beam stiffness of the composite beam can be improved significantly with the increase of shear studs,a slightly difference in ultimate load was observed between DS-2 and LS-3.The ultimate load-carrying capacity of the composite beam formed with shear studs is about twice of that of the beam formed with adhesive bond.
composite beam connection method GFRP-concrete deck steel main girder flexural behavior
Hui Huang Bin Jia Wen-wei Wang Wen Guo Chun-tao Zhang
School of Civil and Architecture Engineering,Department of Civil Engineering,Southwest University of School of Transportation,Department of Bridge Engineering,Southeast University,No.2 Si Pai Lou Road,
国际会议
新加坡
英文
1-6
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）