CFRP-PEC方式加固H型钢柱轴压稳定承载力试验研究  

Experimental study on the axial compression stability bearing capacity of H-shaped steel columns reinforced by CFRP-PEC method

作　　者：韩静怡 胡忠君[1] 何尧 李雪鹏 HAN Jingyi;HU Zhongjun;HE Yao;LI Xuepeng(Department of Construction Engineering,Jilin University,Changchun 130026,China)

机构地区：[1]吉林大学建设工程学院,长春130026

出　　处：《建筑结构》2022年第S01期2120-2125,共6页Building Structure

摘　　要：设计制作并完成9个试件(3个H型钢柱、3个PEC方式加固柱、3个CFRP-PEC方式加固柱)的轴压加载试验。研究加固包裹方式和长细比对H型钢中长柱轴压性能的影响。试验结果表明:PEC和CFRP-PEC方式加固后的H型钢柱轴压承载力均有一定幅度的提高,试件的轴压承载力随长细比的增加而逐渐减小。基于叠加原理和相关文献试验数据,验证了赵根田和LIANG JF轴压承载力计算公式的适用性并针对此类柱设计使用计算公式给出合理建议,可为工程设计人员提供一定的参考。Design,manufacture and complete the axial compression loading test of 9 specimens(3 H-shaped steel columns,3 PEC reinforced columns,3 CFRP-PEC reinforced columns).The effect of reinforcement wrapping method and slenderness ratio on the axial compression performance of H-shaped steel mid-length columns is studied.The test results show that the axial compression bearing capacity of H-shaped steel columns reinforced by PEC and CFRP-PEC methods has a certain degree of improvement,and the axial compression bearing capacity of the specimens gradually decreases with the increase of the slenderness ratio.Based on the superposition principle and data tested in related literature,the applicability of the calculation formulas of LIANG Jiongfeng’s and ZHAO Gentian’s axial compression bearing capacity are verified,and reasonable suggestions are given for the calculation formulas for the design of such columns,which can be used for reference by engineering designers.

关 键 词：PEC柱 CFRP-PEC柱 轴心受压 稳定承载力 

分 类 号：TU392.1[建筑科学—结构工程]