摘要
对火灾中受损的钢管混凝土梁柱(CFST)采用单向碳纤维复合材料进行加固并对其进行循环试验测试。试验参数包括横截面类型(圆形或方形)、碳纤维(CFRP)覆盖层数量(1层或2层)和轴向荷载等级(0~0.78)。基于试验结果分析了CFRP覆层对构件的极限抗侧强度、弯曲刚度、耗能和梁柱延性的修复效果。
This paper presents the results of cyclic tests of fire-damaged concrete-filled steel tubular (CFST) beam-columns repaired by unidirectional carbon fibre reinforced polymer (CFRP) composites. The test parameters included the cross-section type ( circular and square), the number of CFRP layers (1 and 2) and the axial load level (0-0.78). Based on the experimental measurements, the repair effects of CFRP wraps on the ultimate lateral strength, flexural stiffness, dissipated energy and ductility of the beamcolumns are studied.
出处
《钢结构》
2008年第6期82-82,共1页
Steel Construction