[1]李冉,马丽娜,刘秀琴,等.CFRP-超薄壁圆钢管混凝土轴压短柱承载力的简化计算[J].延边大学学报(自然科学版),2014,40(01):67-70.
　LI Ran,MA Lina,LIU Xiuqing,et al.The bearing capacity of CFRP-super thin-wall round steel tube concrete axial compression short column simplified calculation[J].Journal of Yanbian University,2014,40(01):67-70.
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CFRP-超薄壁圆钢管混凝土轴压短柱承载力的简化计算

《延边大学学报(自然科学版)》[ISSN:1004-4353/CN:22-1191/N] 卷: 第40卷 期数: 2014年01期 页码: 67-70 栏目: 应用科学研究 出版日期: 2014-03-20
Title:
The bearing capacity of CFRP-super thin-wall round steel tube concrete axial compression short column simplified calculation
作者:
李冉1;  马丽娜2;  刘秀琴2;  张鸿梅*
1.延边大学工学院 土木工程系, 吉林 延吉 133002; 2.延边建设工程质量检测鉴定有限公司, 吉林 延吉 133002
Author(s):
LI Ran1;  MA Lina2;  LIU Xiuqing2;  ZHANG Hongmei*
1.Department of Civil Engineering, College of Engineering, Yanbian University, Yanji 133002, China; 2.Yanbian Construction Engineering Quality Detection Appraisal Co. Ltd., Yanji 133002, China
关键词:
CFRP-超薄壁圆钢管混凝土;  极限平衡法;  承载力计算表达式;  MatLab
Keywords:
CFRP-super thin-wall round steel tube concrete;  limit equilibrium method;  computational expressions of bearing capacity;  MatLab
分类号:
TU375.3
文献标志码:
A
摘要:
基于合理的CFRP筒、钢管和核心混凝土在极限荷载时的应力状态的假设,采用极限平衡法并运用MatLab软件作为运算工具,推导出钢管壁厚小于2 mm、径厚比大于120的CFRP-超薄壁圆钢混凝土轴压短柱的承载力计算表达式.结果表明:相对于普通的CFRP-钢管混凝土短柱,CFRP-超薄壁圆钢管混凝土轴压短柱的钢管套箍指标被折减,其承载力有所降低.通过对9个构件的轴心受压试验表明,计算表达式的计算值与试验值吻合良好.
Abstract:
Based on the reasonable hypothesis of the stress state under the ultimate load of the CFRP tube, steel tube and the core concrete, using the limit equilibrium methods and taking the MatLab as the computational tool, we inferred the computational expressions of the bearing capacity of the CFRP-super thin-wall round steel tube concrete axial compression short column witch with the steel tube wall thickness less than 2 mm, and radius-thickness ratio more than 120. The calculation results shows that: compared with the common CFRP-concrete filled steel tubular short column, the steel tube’s confinement index of the CFRP -super thin-wall round steel tube concrete axial compression short column was discounted, and the bearing capacity was reduced. The axial compression test of nine specimens indicates that the calculation result from the computational expressions can match well with the test result.

参考文献/References:

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备注/Memo

收稿日期: 2013-12-14*通信作者: 张鸿梅(1959—),女,教授,研究方向为结构检测与加固.

更新日期/Last Update: 2014-03-20