摘要
目的研究内置CFRP圆管的方钢管高强混凝土轴压短柱的承载力.方法进行了12根内置CFRP圆管的方钢管高强混凝土轴压短柱和6根普通方钢管高强混凝土轴压短柱的试验研究和理论分析,探讨了与试件的含钢率及CFRP圆管与方钢管的相对配置率之间的关系以及它们对承载力的影响.结果承载力随着含钢率及CFRP圆管与方钢管的相对配置率的增大而提高,回归得到了内置CFRP圆管的方钢管高强混凝土轴压短柱的承载力计算初探公式.结论承载力计算公式的理论计算结果与试验结果吻合良好,证明了提出的计算公式的正确性.
The theoretical and experimental study on 12 short columns of high-strength concrete filled square steel tube with inner CFRP circular tube under axially compressive load and 6 common short columns of high-strength concrete filled square steel tube is carried out. Relationship of the steel ratio and the comparative ratio of CFRP tube and their influence on bearing capacity of short columns of high-strength concrete filled square steel tube with inner CFRP circular tube under axially compressive load are discussed. It is found that the bearing capacity is improved with the increasing of steel ratio and the comparative ratio of CFRP tube and the square steel tube. The formula of bearing capacity of the short columns of high-strength concrete filled square steel tube with inner CFRP circular tube under axially compressive load is regressed. The comparison of the experimental data and the results from the proposed equations show good consistency.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
2008年第1期62-66,共5页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(50678106)
沈阳建筑大学省级重点实验室开放基金(JG-200603)
沈阳市人才资源开发专项资金联合资助课题
关键词
内置CFRP圆管的方钢管高强混凝土
轴压短柱
承载力
计算公式
high-strength concrete filled square steel tube with inner CFRP tube
short columns under axially compressive load
bearing capacity
作者简介
李帼昌（1964-），女，教授，博士，博士生导师，主要从事钢筋混凝土方面的研究．
