FRP约束钢管混凝土轴压构件力学性能研究  

MECHANICAL BEHAVIOR OF STUB COLUMNS OF FRP-CONFINED CONCRETE-FILLED STEEL TUBES

作　　者：陶忠[1] 庄金平[1] 于清[2] 

机构地区：[1]福州大学土木建筑工程学院,福州350002 [2]清华大学建设管理系

出　　处：《工业建筑》2005年第9期20-23,共4页Industrial Construction

基　　金：福建省教育厅科研项目(JB04041);福建省自然科学基金(E0410015)资助课题

摘　　要：进行了9个钢管混凝土轴心受压构件的试验研究,对其中的6个构件包裹了纤维增强复合材料(FRP)。试验参数为钢管截面形状、截面尺寸和包裹FRP的层数。试验结果表明,FRP约束圆钢管混凝土可以较好地发挥FRP约束混凝土和钢管混凝土的双重优点,构件在具有较高承载力的同时还具有较好的延性。最后,提供了FRP约束圆钢管混凝土轴压构件承载力的简化计算公式。Nine tests on short concrete-filled steel tubes （CFST） were carried out, including six specimens wrapped by fther reinforced polymers （FRP） and three unwrapped ones. The experimental parameters were sectional shape, section size and layers of FRP jackets. The test results demonstrated that, the FRP-confined concrete-filled sleel tubular stub colums with circular sections have the merits of both FRP-confined concrete and CFST stub columns. A simple formula, which can be used for calculating bearing capacities of FRP-confined concrete-filled steel tubular stub columns with circular sections is established.

关 键 词：FRP 钢管混凝土轴压构件 力学性能 纤维增强复合材料 承载力 钢管截面 

分 类 号：TU398.9[建筑科学—结构工程]