摘要
分别进行了十四个轴心受压构件和十二个偏心受压构件的试验研究 ,二种构件的试验参数分别为钢管径厚比和空心率 ,构件长细比和偏心率。在确定组成圆中空夹层钢管混凝土的钢材和核心混凝土应力 -应变关系模型的基础上 ,利用数值解法对圆中空夹层钢管混凝土轴压和压弯构件的荷载 -变形关系进行了全过程分析 ,分析结果与试验结果吻合良好。最后在参数分析的基础上 ,提供了圆中空夹层钢管混凝土轴压和压弯构件承载力实用验算方法。
A series of tests are conducted on concrete-filled double skin steel tubular stub columns (fourteen) and beam-columns (twelve). The experimental parameters for stub column tests are the outer tube diameter-to-thickness ratio and the hollow section ratio, while those for beam-columns are slenderness ratio and load eccentricity. A mechaniccal model is developed for concrete-filled double skin steel tubular columns with circular sections. The predicted load versus deformation relationships are in good agreement with the column test results. Simplified models are derived for the bearing capacities of the composite columns.
出处
《土木工程学报》
EI
CSCD
北大核心
2004年第10期41-51,共11页
China Civil Engineering Journal
基金
福建省科技重大项目 (2 0 0 2H0 0 7)
福建省建设厅联合资助项目
关键词
中空夹层
钢管混凝土
轴压
偏压
荷载-变形关系
承载力
double skin
concrete filled steel tubes
axial compression
eccentric compression
load-deformation relationship
bearing capacity
