[1]王灿灿,梁旭东,朱培红,等.圆形高强中空夹层钢管混凝土构件轴压性能试验研究[J].西安建筑科技大学学报(自然科学版),2021,53(03):366-378.[doi:10.15986/j.1006-7930.2021.03.008]
　WANG Cancan,LIANG Xudong,ZHU Peihong,et al.Study on the axial compression behavior of circular high strength concrete-filled double skin steel tubular members[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2021,53(03):366-378.[doi:10.15986/j.1006-7930.2021.03.008]
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圆形高强中空夹层钢管混凝土构件轴压性能试验研究()
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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:
53
期数:
2021年03期
页码:
366-378
栏目:
出版日期:
2021-06-28

文章信息/Info

Title:
Study on the axial compression behavior of circular high strength concrete-filled double skin steel tubular members
文章编号:
1006-7930(2021)03-0366-13
作者:
王灿灿1; 梁旭东2; 朱培红1; 王先铁2; 庞亚红2; 孟繁东3; 吴建灵3
(1.国网浙江省电力有限公司 丽水供电公司,浙江 丽水 323000; 2.西安建筑科技大学 土木工程学院,陕西 西安 710055; 3.丽水正阳电力建设有限公司,浙江 丽水 323000)
Author(s):
WANG Cancan1; LIANG Xudong2; ZHU Peihong1; WANG Xiantie2; PANG Yahong2; MENG Fandong3; WU Jianling3
(1.State Grid Zhejiang Electric Power Co.,Ltd,Lishui Power Sapply Company,Lishui 323000,China; 2.School of Civil Engineering,Xi’an Univ. of Arch. & Tech.,Xi’an 710055,China; 3.Lishui Zhengyang Electric Power Construction Co.,Ltd.,Lishui 323000,China)
关键词:
高强;  中空夹层钢管混凝土;  轴压性能;  试验研究;  有限元分析
Keywords:
high strength;  circular concrete-filled double skin steel tubes;  axial compression behavior;  experimental research;  finite element analysis
分类号:
TU398*.9
DOI:
10.15986/j.1006-7930.2021.03.008
文献标志码:
A
摘要:
为研究由Q690钢材和C100(C120)混凝土组成的圆形高强中空夹层钢管混凝土构件的轴压性能,以混凝土强度、截面空心率和截面含钢率为主要变化参数进行了6个圆形高强中空夹层钢管混凝土轴压试件的试验研究.结果表明:随着混凝土强度提高试件承载力增加,随着截面空心率和含钢率的增大试件承载力降低; 轴压荷载作用下,试件可能发生“鼓曲型”和“剪切型”破坏.“鼓曲型”破坏的试件有较高的后期承载力,延性较好; “剪切型”破坏试件的延性相对较低.采用有限元软件ABAQUS分析了空心率、混凝土强度及内、外钢管径厚比对圆形高强中空夹层钢管混凝土构件轴压性能的影响规律.提出了圆形高强中空夹层钢管混凝土构件的轴压承载力和刚度计算公式,公式计算结果与试验结果吻合较好.
Abstract:
In order to study the axial compression properties of circular high-strength concrete-filled double skin steel tubular members composed of Q690 steel and C100(C120)concrete,six circular high-strength concrete-filled double skin steel tubular members were tested with concrete strength,section void ratio and section steel ratio as the main parameters. The results show that: with the increase of concrete strength,the bearing capacity of the specimens increases,and with the increase of void ratio and steel content,the bearing capacity of the specimens decreases; under the action of axial compression,the specimens may suffer from “tympanic” and “shear” failure. “Tympanic” failure specimens have higher bearing capacity and better ductility at the later stage,“shear” failure specimens have relatively low ductility. By using the finite element software ABAQUS,the influence of void ratio,concrete strength and the ratio of inner and outer steel diameter to thickness on the axial compression performance of circular high-strength concrete-filled double skin steel tubular members is analyzed. The formulas for calculating the bearing capacity and stiffness of circular high-strength concrete-filled double skin steel tubular members are put forward. The results of the formulas are in good agreement with the test results.

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(编辑 吴海西 沈 波)

备注/Memo

备注/Memo:
收稿日期:2020-12-09 修改稿日期:2021-05-08
基金项目:国家自然科学基金项目(51678474); 丽水正阳电力建设有限公司科技项目(SGTYHT/16-JS-200)
第一作者:王灿灿(1980-),男,硕士,高级工程师,从事电力系统专业与技术管理工作.E-mail:122357959@qq.com
通信作者:王先铁(1979-),男,博士,教授,从事钢结构与钢管混凝土结构研究.E-mail:wangxiantie@163.com
更新日期/Last Update: 2021-06-28