论文部分内容阅读
FRP管-混凝土-钢管组合柱(DSTC)是一种有效利用复合材料特点的新型组合构件形式.为研究该组合构件短柱的轴心受压性能,笔者完成了3个双管组合短柱轴心受压试验,主要研究FRP管壁厚度对短柱轴压承载力与破坏模式的影响.试验结果表明:DSTC短柱轴压下的破坏模式为柱跨中FRP管环向断裂破坏和底部端部破坏;在其他参数相同的条件下,随着FRP管壁厚度的增大,构件极限承载力提高.
FRP pipe-concrete-steel pipe composite column (DSTC) is a new type of composite component that makes effective use of the composite material.In order to study the axial compressive performance of the short column, the author completed three double- This paper mainly studies the influence of FRP wall thickness on the axial bearing capacity and failure mode of short columns.The results show that the failure mode of the axial compression of the short column of DSTC is the circumferential failure of the FRP pipe in the column span and the failure of the bottom end In the same condition of other parameters, as the thickness of FRP pipe wall increases, the ultimate bearing capacity of the member increases.