«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

37卷

期数:

2020年03期

页码:

18-27

栏目:

出版日期:

2020-05-30

文章信息/Info

Title:

Axial Compression Performance of RCFST Middle Long Columns

文章编号:

1673-2049(2020)03-0018-10

作者:

任志刚,张 铭,魏 巍,王丹丹

(武汉理工大学 土木工程与建筑学院,湖北 武汉 430070)

Author(s):

REN Zhi-gang, ZHANG Ming, WEI Wei, WANG Dan-dan

(School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China)

关键词:

圆端形钢管混凝土;  轴压性能;  界限长细比;  承载力;  中长柱

Keywords:

RCFST;  axial compression performance;  bounds slenderness ratio;  bearing capacity;  middle long column

分类号:

TU398

DOI:

10.19815/j.jace.2019.05054

文献标志码:

A

摘要:

为研究圆端形钢管混凝土中长柱的轴压性能,考虑了构件千分之一杆长的初弯曲,使用有限元软件ABAQUS建立了圆端形钢管混凝土中长柱精细化有限元分析模型,利用已有试验数据验证有限元模型的合理性与精确性,在此基础上分析了试件的变形模式和承载能力状态,比较短柱、中长柱与长柱性能的不同,得出了圆端形钢管混凝土界限长细比。综合分析了长细比、钢管厚度、混凝土强度、钢材强度、高宽比等参数,提出了圆端形钢管混凝土中长柱极限承载力简化计算公式,并对简化计算公式的准确性进行了验证。结果表明:短柱为强度破坏,中长柱发生弹塑性失稳破坏,长柱发生弹性失稳破坏; 在其他条件相同的情况下,圆端形钢管混凝土中长柱的极限承载力、延性与长细比呈负相关,与钢材强度、钢管厚度呈正相关,混凝土强度的变化对承载力和延性的影响不大; 短柱与中长柱界限长细比λ₀=10～11,中长柱与长柱界限长细比λ_p=86.4～96.0; 与试验数据及有限元计算结果相比,承载力公式具有足够精度,可为圆端形钢管混凝土中长柱研究与工程应用提供理论依据。

Abstract:

In order to study the axial compression performance of the round-ended concrete-filled steel tube(RCFST)middle long columns, a finite element model of RCFST middle long columns under axial load was developed by using ABAQUS. On the basis of verifying the rationality and accuracy of the finite element model by the existing experimental data, the deformation and the bearing capacity states of the specimens were analyzed, and the properties of short columns, middle long columns and long columns were compared, the boundary slenderness ratio of RCFST was proposed. A simplified formula for calculating ultimate bearing capacity of RCFST middle long columns was presented based on the analysis of the parameters such as the slenderness radio, thickness of the steel pipe, concrete strength, steel strength and height to width aspect ratio, and the accuracy of simplified formula was verified. The results show that the short column is strength failure, the middle long column is buckling failure and the long column is elastic instability failure. Under the same conditions, the slenderness ratio has negative relation as well the steel strength and thickness of steel pipes have positive relation with the ultimate bearing capacity and ductility of RCFST middle long column under axial load, but the variation of concrete strength has less influence on ultimate bearing capacity and ductility. The bounds slenderness ratio among stub columns, middle long columns and long columns are λ₀=10-11 and λ_p=86.4-96.0 respectively; the formula for calculating axial load bearing capacity has sufficient accuracy comparing with the results of finite element analysis and experiment, and it can provide theoretical basis for the research and engineering application of RCFST middle long columns.

参考文献/References:

[1] 王静峰,於忠华,沈奇罕,等.圆端形椭圆钢管混凝土受扭性能数值分析及抗扭承载力计算[J].建筑科学与工程学报,2018,35(3):7-15.
WANG Jing-feng,YU Zhong-hua,SHEN Qi-han,et al.Torsional Behavior Numerical Analysis and Torsion Bearing Capacity Calculation of Circular-end Elliptical Concrete-filled Steel Tube[J].Journal of Architecture and Civil Engineering,2018,35(3):7-15.
[2]谢恩普,王志滨,林 盛,等.圆端形钢管混凝土轴压短柱的机理分析[J].福州大学学报:自然科学版,2015,43(4):517-522.
XIE En-pu,WANG Zhi-bin,LIN Sheng,et al.Mechanism Analysis on Concrete-filled Round-end Steel Tubular Stub Columns Under Axial Load[J].Journal of Fuzhou University:Natural Science Edition,2015,43(4):517-522.
[3]WANG J F,SHEN Q H.Numerical Analysis and Design of Thin-walled RECFST Stub Columns Under Axial Compression[J].Thin-walled Structures,2018,129:166-182.
[4]HASSANEIN M F,PATEL V I.Round-ended Rectangular Concrete-filled Steel Tubular Short Columns:FE Investigation Under Axial Compression[J].Journal of Constructional Steel Research,2018,140:222-236.
[5]谷利雄,丁发兴,付 磊,等.圆端形钢管混凝土轴压短柱受力性能研究[J].中国公路学报,2014,27(1):57-63.
GU Li-xiong,DING Fa-xing,FU Lei,et al.Mechanical Behavior of Concrete-filled Round-ended Steel Tubular Stub Columns Under Axial Load[J].China Journal of Highway and Transport,2014,27(1):57-63.
[6]王志滨,陈 靖,谢恩普,等.圆端形钢管混凝土柱轴压性能研究[J].建筑结构学报,2014,35(7):123-130.
WANG Zhi-bin,CHEN Jing,XIE En-pu,et al.Behavior of Concrete-filled Round-end Steel Tubular Stub Columns Under Axial Compression[J].Journal of Building Structures,2014,35(7):123-130.
[7]付 磊,丁发兴,谷利雄,等.圆端形钢管内约束混凝土轴压短柱的力学性能[J].华南理工大学学报:自然科学版,2014,42(11):113-120.
FU Lei,DING Fa-xing,GU Li-xiong,et al.Mechanical Properties of Stirrups Confinement Concrete-filled Round-ended Steel Tubular Stub Short Columns Under Axial Compression[J].Journal of South China University of Technology:Natural Science Edition,2014,42(11):113-120.
[8]李德山,池思源,王志滨.圆端形钢管混凝土柱偏压力学性能研究[J].福州大学学报:自然科学版,2016,44(4):538-542.
LI De-shan,CHI Si-yuan,WANG Zhi-bin.Mechanical Behavior of Round-end Concrete-filled Steel Tubular Columns Under Eccentric Load[J].Journal of Fuzhou University:Natural Science Edition,2016,44(4):538-542.
[9]李锦华,王二磊.圆端形钢管混凝土偏压构件受力性能研究[J].武汉理工大学学报,2016,38(4):50-53.
LI Jin-hua,WANG Er-lei.Mechanical Behavior of Round-ended Steel Tube Under Eccentric Load[J].Journal of Wuhan University of Technology,2016,38(4):50-53.
[10]王二磊.圆端形钢管混凝土受压力学性能与可靠度研究[D].武汉:武汉理工大学,2012.
WANG Er-lei.Research on Compressive Behavior and Reliability of Round-ended Steel Tube-Filled Concrete Column[D].Wuhan:Wuhan University of Technology,2012.
[11]丁发兴,傅 强,方常靖.圆端形耐候钢管混凝土轴压短柱力学性能研究[J].铁道工程学报,2017(11):33-38.
DING Fa-xing,FU Qiang,FANG Chang-jing.Research on the Mechanical Behavior of Concrete-filled Round-ended Weathering Steel Tubular Stub Columns under Axially Compressive Loading[J].Journal of Railway Engineering Society,2017(11):33-38.
[12]易贤仁,李 彬,卢哲安,等.圆端形钢管微膨胀混凝土塔柱非线性接触分析[J].混凝土,2010(1):33-36.
YI Xian-ren,LI Bin,LU Zhe-an,et al.Nonlinear Contact Analysis on Round-ended Micro-expansive Concrete Filled Steel Tubes Tower-column[J].Concrete,2010(1):33-36.
[13]韩林海.钢管混凝土结构——理论与实践[M].3版.北京:科学出版社,2016.
HAN Lin-hai.Concrete Filled Steel Tubular Structures — Theory and Practice[M].3rd ed.Beijing:Science Press,2016.
[14]HAN L H,YAO G H,TAO Z.Performance of Concrete-filled Thin-walled Steel Tubes Under Pure Torsion[J].Thin-walled Structures,2007,45(1):24-36.
[15]沈聚敏,王传志,江见鲸.钢筋混凝土有限元与板壳极限分析[M].北京:清华大学出版社,1993.
SHEN Ju-min,WANG Chuan-zhi,JIANG Jian-jing.Finite Element Analysis of Reinforced Concrete and Limit Analysis of Plate and Shell[M].Beijing:Tsinghua University Press,1993
[16]DING F,YING X,ZHOU L,et al.Unified Calculation Method and Its Application in Determining the Uniaxial Mechanical Properties of Concrete[J].Frontiers of Architecture and Civil Engineering in China,2011,5(3):381-393.
[17]GB 50017—2017,钢结构设计规范[S].
GB 50017—2017,Standard for Design of Steel Structures[S].
[18]马小春.圆端形钢管混凝土轴压试验研究[D].武汉:武汉理工大学,2012.
MA Xiao-chun.Research on Axial Compression Test About Concrete Filled Stell Tube of Round Tip Shape[D].Wuhan:Wuhan University of Technology,2012.
[19]QIU W,MCCANN F,ESPINOS A,et al.Numerical Analysis and Design of Slender Concrete-filled Elliptical Hollow Section Columns and Beam-columns[J].Engineering Structures,2017,131:90-100.
[20]HASHEM Z A,YUAN R L,SHORT V S.Long Column Behavior of Pultruded Glass-fiber Reinforced Polymer Composites[J].Construction and Building Materials,2001,15(8):369-378.
[21]UY B,TAO Z,HAN L H.Behaviour of Short and Slender Concrete-filled Stainless Steel Tubular Columns[J].Journal of Constructional Steel Research,2011,67(3):360-378.
?

相似文献/References:

[1]刘向斌,周天华,聂少锋,等.冷弯薄壁型钢开口三肢拼合立柱轴压性能有限元分析[J].建筑科学与工程学报,2011,28(03):119.
　LIU Xiang-bin,ZHOU Tian-hua,NIE Shao-feng,et al.Finite Element Analysis of Cold-formed Thin-walled Steel Three Open Limbs Built-up Columns Under Axial Compression[J].Journal of Architecture and Civil Engineering,2011,28(03):119.
[2]任志刚,刘 闯,王丹丹,等.带约束拉杆圆端形钢管混凝土短柱轴压工作机理[J].建筑科学与工程学报,2019,36(05):39.
　REN Zhi-gang,LIU Chuang,WANG Dan-dan,et al.Axial Compression Mechanism of Round-ended Concrete-filled Steel Tubular Stub Short Columns with Binding Bars[J].Journal of Architecture and Civil Engineering,2019,36(03):39.
[3]任志刚,王丹丹.不同圆心角圆端形钢管混凝土短柱轴压性能[J].建筑科学与工程学报,2020,37(05):77.[doi:10.19815/j.jace.2019.05088]
　REN Zhi-gang,WANG Dan-dan.Behavior of Round-ended Concrete-filled Steel Tube Stub Column with Different Central Angles Under Axial Load[J].Journal of Architecture and Civil Engineering,2020,37(03):77.[doi:10.19815/j.jace.2019.05088]
[4]闫维明,孔令旭,慈俊昌,等.大径宽比钢管混凝土叠合柱轴压试验[J].建筑科学与工程学报,2020,37(06):21.
　YAN Wei-ming,KONG Ling-xu,CI Jun-chang,et al.Experiment on Axial Compression of Concrete Filled Steel Tube Composite Columns with Large Diameter Width Ratio[J].Journal of Architecture and Civil Engineering,2020,37(03):21.
[5]任志刚,徐圣海,李培鹏,等.圆端形钢管混凝土偏压柱截面优化研究[J].建筑科学与工程学报,2021,38(04):1.[doi:10.19815/j.jace.2020.08031]
　REN Zhi-gang,XU Sheng-hai,LI Pei-peng,et al.Sectional Optimization of Round-ended Rectangular Concrete-filled Steel Tubular Columns Under Eccentric Compression[J].Journal of Architecture and Civil Engineering,2021,38(03):1.[doi:10.19815/j.jace.2020.08031]
[6]翟梦超,王景全,姚一鸣.织物增强混凝土的纤维协同等代效应对约束混凝土的影响分析[J].建筑科学与工程学报,2021,38(04):110.[doi:10.19815/j.jace.2020.09073]
　ZHAI Meng-chao,WANG Jing-quan,YAO Yi-ming.Influence Analysis of Fiber Synergistic Equivalent Effect of Textile Reinforced Concrete on Confined Concrete[J].Journal of Architecture and Civil Engineering,2021,38(03):110.[doi:10.19815/j.jace.2020.09073]
[7]张慧洁,胡 晨,王静峰,等.部分包覆钢-轻骨料混凝土组合短柱轴压性能数值分析[J].建筑科学与工程学报,2022,39(05):53.[doi:10.19815/j.jace.2021.08085]
　ZHANG Hui-jie,HU Chen,WANG Jing-feng,et al.Numerical Analysis of Axial Compression Behavior of Partially-encased Lightweight Aggregate Concrete Composite Stub Columns[J].Journal of Architecture and Civil Engineering,2022,39(03):53.[doi:10.19815/j.jace.2021.08085]
[8]赵海龙,徐瑞文.型钢混凝土T形柱轴压性能分析[J].建筑科学与工程学报,2023,40(04):60.[doi:10.19815/j.jace.2021.11062]
　ZHAO Hailong,XU Ruiwen.Analysis of axial compression performance of steel reinforced concrete T-shaped column[J].Journal of Architecture and Civil Engineering,2023,40(03):60.[doi:10.19815/j.jace.2021.11062]
[9]杨 博,张亚飞,卢 旦,等.波纹管通孔柱轴压性能和滞回性能数值模拟[J].建筑科学与工程学报,2023,40(05):99.[doi:10.19815/j.jace.2021.11120]
　YANG Bo,ZHANG Yafei,LU Dan,et al.Numerical simulation of axial compression and hysteretic behavior of corrugated pipe through-hole column[J].Journal of Architecture and Civil Engineering,2023,40(03):99.[doi:10.19815/j.jace.2021.11120]
[10]龙 刚,刘永健,朱伟庆,等.变截面圆钢管混凝土短柱轴心受压性能研究[J].建筑科学与工程学报,2023,40(06):45.[doi:10.19815/j.jace.2022.02068]
　LONG Gang,LIU Yongjian,ZHU Weiqing,et al.Axial compression performance of CFST short columns with variable circular cross sections[J].Journal of Architecture and Civil Engineering,2023,40(03):45.[doi:10.19815/j.jace.2022.02068]

备注/Memo

备注/Memo:

收稿日期:2019-07-16
基金项目:国家自然科学基金项目(51778512)
作者简介:任志刚(1974-),男,湖北武汉人,教授,博士研究生导师,工学博士,E-mail:whut.ren@163.com。
通信作者:张 铭(1996-),女,山东菏泽人,工学硕士研究生,E-mail:zhangminging2107@163.com。

常用功能

更新日期/Last Update: 2020-06-08