«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01期

页码:

85-93

栏目:

出版日期:

2020-01-30

文章信息/Info

Title:

Analysis on Axial Compression Mechanical Behavior of Circular Concrete Filled Steel Tubular Stub Columns with Inner Crossed Profiled Steel Under Construction Pre-load

文章编号:

1673-2049(2020)01-0085-09

作者:

段绍臻,马 钰,史艳莉,王文达

(兰州理工大学 土木工程学院,甘肃 兰州 730050)

Author(s):

DUAN Shao-zhen, MA Yu, SHI Yan-li, WANG Wen-da

(School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China)

关键词:

圆钢管混凝土;  内配十字形型钢;  施工初应力;  轴压构件;  力学性能

Keywords:

circular concrete filled steel tube;  inner crossed profiled steel;  construction pre-load;  axial compression member;  mechanical behavior

分类号:

TU398

DOI:

10.19815/j.jace.2019.01034

文献标志码:

A

摘要:

利用ABAQUS有限元软件分别建立考虑外钢管施工初应力和同时考虑钢管与型钢施工初应力的内配十字形型钢圆钢管混凝土轴压短柱数值模型,并对建模方法进行验证。计算施工初应力存在时内配型钢钢管混凝土轴压短柱的荷载-位移全过程曲线及其各部件的承载力分配曲线,并分析混凝土与钢管、混凝土与型钢的接触应力及应力发展状态。最后对初应力系数、构件长细比、钢管和型钢的含钢率、钢管和型钢的屈服强度以及混凝土的抗压强度等因素进行了参数分析。结果表明:考虑外钢管施工初应力对内配型钢钢管混凝土轴压构件力学性能的影响规律与其对钢管混凝土轴压构件力学性能的影响规律基本一致; 外钢管和型钢施工初应力的同时存在使混凝土与钢管、型钢的相互作用时间延迟,减弱钢管对混凝土的套箍作用和混凝土对型钢的局部约束,使组合构件提前进入弹塑性阶段并扩大此阶段的范围,导致组合柱极限承载力随着初应力值的增大逐渐减小; 构件长细比对轴压短柱的承载力影响系数有显著影响。

Abstract:

Using ABAQUS finite element software, the numerical models of concrete filled steel tubular(CFST)stub columns with inner crossed profiled steel under axial pressure were established, which considered the construction pre-load of outer steel tube and the pre-load of steel tube and section steel construction respectively. And the modeling method was verified. The whole process load-displacement curves and the bearing capacity distribution curves of CFST with inner profiled steel considering construction pre-load were calculated respectively. The stress development state and the contact stresses between concrete and outer tube, concrete and inner crossed profiled steel were analyzed respectively. Finally, the parameters of pre-load coefficient, component slenderness ratio, steel content of tube and profiled steel, yield strength of tube and profiled steel, and compressive strength of concrete were analyzed. The results show that the influence law of the construction pre-load of outer tube on the mechanical properties of axial compression member in CFST with inner profiled steel is the same as that on the common CFST. At the same time of the pre-loads of the outer steel tube and the profile steel, the interaction time of the concrete and the outer tube and the profile steel is delayed, and the sleeve of steel tube on concrete and the local restraint of concrete on profiled steel pipe are weakened, so that the composite member enters the elastoplastic stage in advance and expands the range of the next stage. The ultimate bearing capacity of composite columns decreases with the increase of the pre-load value. The slenderness ratio has a significant effect on the bearing capacity of the axial compression column.

参考文献/References:

[1] 钟善桐,查晓雄.钢管初应力对钢管混凝土构件承载力影响的研究[J].哈尔滨建筑大学学报,1997,30(3):13-22.
ZHONG Shan-tong,ZHA Xiao-xiong.Research on the Influence of Initial Stress in Steel Tube on Load Carrying Capacity for Concrete Filled Steel Tubular(CFST)Members[J].Journal of Harbin University of Civil Engineering and Architecture,1997,30(3):13-22.
[2]查晓雄,钟善桐.用有限元法分析钢管初应力对钢管混凝土轴压构件基本性能的影响[J].哈尔滨建筑大学学报,1997,30(1):41-49.
ZHA Xiao-xiong,ZHONG Shan-tong.The Behavior Effect on Concrete Filled Steel Tubular Members Subjected to Compression Under the Initial Stress of Steel Tube Based on the Finite Element Method[J].Journal of Harbin University of Civil Engineering and Architecture,1997,30(1):41-49.
[3]HAN L H,YAO G H.Behaviour of Concrete-filled Hollow Structural Steel(HSS)Columns with Pre-load on the Steel Tubes[J].Journal of Constructional Steel Research,2003,59(12):1455-1475.
[4]王文达,于 清.混凝土浇筑过程中方钢管柱的力学性能[J].清华大学学报:自然科学版,2013,53(1):6-11.
WANG Wen-da,YU Qing.Behavior of Square Steel Tubular Columns During Concrete Pouring[J].Journal of Tsinghua University:Science and Technology,2013,53(1):6-11.
[5]LI W,HAN L H,ZHAO X L.Axial Strength of Concrete-filled Double Skin Steel Tubular(CFDST)Columns with Preload on Steel Tubes[J].Thin-walled Structures,2012,56:9-20.
[6]赵大洲.钢骨-钢管高强混凝土组合柱力学性能的研究[D].大连:大连理工大学,2003.
ZHAO DA-Zhou.Study on the Mechanical Properties of Steel Tubular Columns Filled with Steel-reinforced High-strength Concrete[D].Dalian:Dalian University of Technology,2003.
[7]王清湘,赵大洲,关 萍.钢骨-钢管高强混凝土轴压组合柱受力性能的实验研究[J].建筑结构学报,2003,24(6):44-49.
WANG Qing-xiang,ZHAO Da-zhou,GUAN Ping.Study on the Mechanical Properties of Axially Loaded Steel Tubular Columns Filled with Steel-reinforced High-strength Concrete[J].Journal of Building Structures,2003,24(6):44-49.
[8]陈明杰.钢骨-钢管高强混凝土柱力学性能研究[D].广州:华南理工大学,2014.
CHEN Ming-jie.Study on the Mechanical Properties of CFST Column with the Built-in Cross Shape Column[D].Guangzhou:South China University of Technology,2014.
[9]王清湘,赵大洲,关 萍.轴心受压钢骨-钢管高强混凝土组合柱承载力的研究[J].工程力学,2003,20(6):195-201.
WANG Qing-xiang,ZHAO Da-zhou,GUAN Ping.The Load-bearing Capacity of Axially Loaded Circular Steel Tubular Columns Filled with Steel-reinforced High-strength Concrete[J].Engineering Mechanics,2003,20(6):195-201.
[10]毛文婧,史艳莉,王文达.内配型钢圆钢管混凝土轴压短柱在不同含钢率下承载力分析[J].工程力学,2017,34(增):63-70.
MAO Wen-jing,SHI Yan-li,WANG Wen-da.Analysis on Axial Compressive Bearing Capacity of Circular Concrete-filled Steel Tubular Stub Columns with Internal Profiled Steel Under Different Steel Ratio[J].Engineering Mechanics,2017,34(S):63-70.
[11]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.
[12]黄世娟,钟善桐,闫善章,等.初应力对钢管混凝土轴压构件承载力影响的实验研究[J].哈尔滨建筑大学学报,1996,29(6):44-50.
HUANG Shi-juan,ZHONG Shan-tong,YAN Shan-zhang,et al.Experimental Research of Prestress Effect on Bearing Capacity of Concrete Filled Steel Tubular Axial Compressive Members[J].Journal of Harbin University of Civil Engineering and Architecture,1996,29(6):44-50.
[13]王文达,韩林海.钢管混凝土结构施工阶段力学性能分析[J].工业建筑,2004,34(6):65-67,58.
WANG Wen-da,HAN Lin-hai.Analysis of Mechanical Behaviour of Concrete Filled Steel Tubular Structures During Construction[J].Industrial Construction,2004,34(6):65-67,58.
[14]徐 悟,于 清,尧国皇.初应力对钢管混凝土叠合柱轴压性能影响[J].清华大学学报:自然科学版,2014,54(5):556-562.
XU Wu,YU Qing,YAO Guo-huang.Effect of Preload on the Axial Capacity of CFST Reinforced Concrete Columns[J].Journal of Tsinghua University:Science and Technology,2014,54(5):556-562.
[15]陈彦玉.钢管初应力及长期荷载作用下内配型钢钢管混凝土柱力学性能研究[D].兰州:兰州理工大学,2016.
CHEN Yan-yu.Behavior of Concrete Filled Tubular Members with Inner Profiled Steel Under Initial Stresses on Steel Tubes as Well as Long-term Sustained Loads[D].Lanzhou:Lanzhou University of Technology,2016.
[16]HUANG F Y,YU X M,CHEN B C,et al.Study on Preloading Reduction of Ultimate Load of Circular Concrete-filled Steel Tubular Columns[J].Thin-walled Structures,2016,98:454-464.
[17]王永宝,赵人达,吴德宝.初应力和黏结滑移对钢管混凝土长期变形的影响[J].浙江大学学报:工学版,2018,52(12):2306-2313,2381.
WANG Yong-bao,ZHAO Ren-da,WU De-bao.Time-dependent Behavior of Concrete-filled Steel Tube Considering Initial Stress and Bond-slip Effect[J].Journal of Zhejiang University:Engineering Science,2018,52(12):2306-2313,2381.
[18]周桂林,罗赤宇,陈常清,等.江门市海逸酒店结构设计[J].广东土木与建筑,2014(8):3-7.
ZHOU Gui-lin,LUO Chi-yu,CHEN Chang-qing,et al.The Structural Design of the Haiyi Hotel in Jiangmen[J].Guangdong Architecture Civil Engineering,2014(8):3-7.
[19]王文达,郑 龙,魏国强.穿心构造的钢管混凝土柱-钢梁节点抗连续性倒塌性能分析与评估[J].工程科学与技术,2018,50(6):39-47.
WANG Wen-da,ZHENG Long,WEI Guo-qiang.Resistance to Progressive Collapse Performance Analysis and Assessment of CFST-steel Beam Joints with Through-center Construct[J].Advanced Engineering Sciences,2018,50(6):39-47.
[20]GB 50936—2014,钢管混凝土结构技术规范[S].
GB 50936—2014,Technical Code for Concrete Filled Steel Tubular Structures[S].

相似文献/References:

[1]高春彦,杨卫平,李 斌,等.圆钢管混凝土K型焊接管板节点受力性能试验[J].建筑科学与工程学报,2014,31(04):51.
　GAO Chun-yan,YANG Wei-ping,LI Bin,et al.Experiment on Mechanical Behavior for Concrete-filled Circular Steel Tube K-type Welded Tube-gusset Joints[J].Journal of Architecture and Civil Engineering,2014,31(01):51.
[2]瞿海雁,李国强,孙建运,等.侧向冲击作用下圆钢管混凝土构件的数值模拟分析[J].建筑科学与工程学报,2010,27(01):89.
　QU Hai-yan,LI Guo-qiang,SUN Jian-yun,et al.Numerical Simulation Analysis of Circular Concrete-filled Steel Tube Specimen Under Lateral Impact[J].Journal of Architecture and Civil Engineering,2010,27(01):89.

备注/Memo

备注/Memo:

收稿日期:2019-02-21
基金项目:国家自然科学基金项目(51768038); 甘肃省高校协同创新团队项目(2018C-08)
作者简介:段绍臻(1982-),女,河北邯郸人,副教授,工学博士,E-mail:dszbest@126.com。
通信作者:王文达(1976-),男,甘肃天水人,教授,博士研究生导师,工学博士,E-mail:wangwd@lut.cn。

常用功能

更新日期/Last Update: 2020-01-13