摘要
目的给出CFRP钢管混凝土核心轴压短柱承载力的简化计算方法,指导工程实践.方法根据试验结果进行理论分析,探讨CFRP钢管混凝土核心轴压短柱相对于CFRP钢管混凝土轴压短柱实测承载力提高率δ与CFRP筒约束效应系数cξf、钢管约束效应系数sξ以及总的约束效应系数ξ之间的关系.结果δ随着约束效应系数的减小而增加;以试验研究为基础,回归了CFRP钢管混凝土核心轴压短柱承载力计算式并给出其适用条件.结论计算结果与试验结果吻合良好.
The relations between load carrying capacity enhancement ratio δ versus CFRP tube confinement factor ξcf, steel tube confinement factor ξs and total confinement factor ξ are discussed respectively. It is found that the smaller the confinement factors, the larger the δ. The curve fitting expression and its application scope of load carrying capacity about concentrically compressed stub columns reinforced by concrete filled CFRP-steel tube are given based on experimental study. The calculation result checks well with that of test.
出处
《沈阳建筑大学学报（自然科学版）》
EI
CAS
2006年第1期21-24,共4页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金资助(50408032)
辽宁省自然科学基金资助(20031001)
辽宁省教育厅科研项目计划青年基金资助(2004F107)
关键词
CFRP-钢复合圆管
内填混凝土
轴压短柱
核心柱
承载力提高率
约束效应系数
回归表达式
CFRP-steel composite tube, concrete filled, concentrically-compressed stub columns, reinforced columns, load carrying capacity enhancement ratio, confinement factor, curve-fitting expression
