[1]杨俊芬,闫西峰,胡盼盼,等.圆钢管混凝土悬臂长柱抗弯性能试验研究[J].西安建筑科技大学学报(自然科学版),2016,48(05):654-660.[doi:10.15986/j.1006-7930.2016.05.007]
　YANG Junfen,YAN Xifeng,HU Panpan,et al.Study on the bending performance of cantilever concrete-filled circular steel tubular long columns[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(05):654-660.[doi:10.15986/j.1006-7930.2016.05.007]
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圆钢管混凝土悬臂长柱抗弯性能试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年05期
页码:
654-660
栏目:
出版日期:
2016-10-31

文章信息/Info

Title:
Study on the bending performance of cantilever concrete-filled circular steel tubular long columns
文章编号:
1006-7930(2016)05-0654-07
作者:
杨俊芬1; 闫西峰1; 胡盼盼1; 张广平2; 奚增红2
(1. 西安建筑科技大学土木工程学院,陕西 西安710055; 2. 中国能源建设集团甘肃省电力设计院有限公司,甘肃 兰州 730050 )
Author(s):
YANG Junfen1;  YAN Xifeng1;  HU Panpan1;  ZHANG Guangping2;  XI Zenghong2
(1. School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China;
2. Gansu Electric Power Design Institute Co., Ltd. of China Energy Construction Group, Lanzhou 730050, China)
关键词:
圆钢管混凝土长柱; 轴压比; 抗弯承载力; 抗侧刚度
Keywords:
concrete-filled circular steel tubular long columns;  the axial compression ratio;  t he bending capacity;  the lateral stiffness
分类号:
TU391
DOI:
10.15986/j.1006-7930.2016.05.007
文献标志码:
A
摘要:
通过对3个足尺圆钢管混凝土长柱的试验研究，分析不同轴压比下圆钢管混凝土长柱的抗弯承载能力和破坏形式．结果表明，相比轴压比为0时的圆钢管混凝土长柱，轴压比为0.1、0.2时的圆钢管混凝土长柱的抗弯承载力和抗侧刚度减小，同时延性也减小；可见轴压力的变化对钢管混凝土长柱抗弯受力性能有显著的影响．在试验的基础上，将不同轴压比的抗侧刚度与考虑P-?效应时相关规程、文献进行比较，给出建议公式,为钢管混凝土结构在实际工程中的应用提供参考．
Abstract:
The experimental studies on three full size concrete-filled circular steel tubular long columns under different axial compression ratio were conducted , and the bending capacity and the failure modes were analyzed . The test result s show that the bending bearing capacity and the lateral stiffness of concrete-filled circular steel tubular long columns under the axial compression ratio of 0.1 or 0.2 decrease d comparing with the axial compression ratio of 0 , and at the same time, the ductility reduce d, too. So the effect of axial compression chang e on t he bending performance of concrete-filled circular steel tubular long columns was significant. O n the basis of experiment, the calculation regulations in Chinese and foreign codes of the considering P-Δ effect were analyzed and compared with the experimental lateral stiffness under different axial compression ratio . The proposed formula was given and a reference for encased structures in the practical engineering application provided

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备注/Memo

备注/Memo:
基金项目：国家电网公司2014年依托工程基建新技术研究项目-钢管混凝土构架在750 kV变电站中的应用研究；住房和城乡建设部2014年科学技术项目(2014-K2-011)；陕西省自然科学基础研究基金面上项目(2014JM7244)；陕西省教育厅专项科研计划项目(2013JK0977)收稿日期：2015-07-13 修改稿日期：2016-10-10
作者简介：杨俊芬(1979－)，女，副教授，主要从事钢结构教学和科研工作．E-mail: yjf9807@126.com
更新日期/Last Update: 2016-11-24