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

卷:

25卷

期数:

2008年03期

页码:

92-95

栏目:

出版日期:

2008-09-20

文章信息/Info

Title:

Cross-section Bearing Capacity Analysis of Eccentrically-loaded Columns of Square Steel Tube Filled with Steel-reinforced Concrete

作者:

赵同峰^1,2,王连广¹,吴少敏²

1.东北大学资源与土木学院,辽宁沈阳110004; 2.中国人民解放军沈阳炮兵学院基础部,辽宁沈阳110162

Author(s):

ZHAO Tong-feng^1,2, WANG Lian-guang¹, WU Shao-min²

1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, Liaoning, China; 2. Department of Foundation, Shenyang Artillery Academy of PLA, Shenyang 110162, Liaoning, China

关键词:

方钢管混凝土;  偏压柱;  正截面承载力;  长细比;  偏心率

Keywords:

square steel tube filled with steel-reinforced concrete;  eccentrically-loaded column;  cross-section bearing capacity;  slenderness ratio;  eccentricity ratio

分类号:

TU528.59

DOI:

-

文献标志码:

A

摘要:

为了进一步研究方钢管-钢骨混凝土偏心受压柱的力学性能,采用叠加法推导了其在钢管、钢骨受拉、受压区屈服条件下的承载力计算公式; 分析了长细比、偏心率、套箍率、配骨率等参数对偏压构件承载力的影响; 通过算例对偏压柱正截面承载力的计算过程进行了演示。结果表明:偏心率的增大使承载力迅速降低; 随着长细比的增加,构件的承载力呈直线下降; 套箍率、配骨率的增加可以显著提高构件的承载力; 得出的偏压承载力的计算公式可用于承载力复核,为方钢管-钢骨混凝土偏压柱设计提供参考。

Abstract:

In order to further study the mechanical properties of eccentrically-loaded column of square steel tube filled with steel-reinforced concrete, authors used superposition method to deduce the calculation formula of cross-section bearing capacity under yield conditions of both compressional and tensile regions of steel tube and steel-reinforced. The influences of slenderness ratio, eccentricity ratio, stirrup ratio, steel-reinforced ratio on bearing capacity of eccentrically-loaded columns were also analyzed. Examples about computation process were given. Results indicate that the increase of eccentricity ratio makes its bearing capacity dropped rapidly; bearing capacity drops linearly with the increase of slenderness ratio and increases rapidly with the increase of the stirrup and reinforced ratio; the calculation formula proposed above can be used for certifying the bearing capacity, and it can offer reference for design of eccentrically-loaded columns of square steel tube filled with steel-reinforced concrete.

参考文献/References:

[1] 马怀忠,王天贤.钢-混凝土组合结构[M].北京:中国建材工业出版社,2006. MA Huai-zhong,WANG Tian-xian.Steel-concrete Composite Structure[M].Beijing:China Building Material Industry Publishing House,2006.
[2]朱美春.钢骨-方钢管自密实高强混凝土柱力学性能研究[D].大连:大连理工大学,2005. ZHU Mei-chun.Research on Mechanical Behavior of Square Steel Tube Columns Filled with Steel-reinforced Self-consolidating High-strength Concrete[D].Dalian:Dalian University of Technology,2005.
[3]徐 麟,张仲先,阮成堂,等.钢骨混凝土受弯构件正截面承载力计算的一种新方法[J].工业建筑,2003,33(2):65-67. XU Lin,ZHANG Zhong-xian,RUAN Cheng-tang,et al.A New Method of Calculating Normal Section Bearing Capacity of SRC Bending Members[J].Industrial Construction,2003,33(2):65-67.
[4]李四平,邹时智,关 罡,等.方钢砼偏压柱压溃过程的数值模拟[J].华中理工大学学报,1996,24(5):91-94. LI Si-ping,ZOU Shi-zhi,GUAN Gang,et al.Numerical Simulation of Collapse of Concrete-filled Square Steel Tubular Columns Under Eccentric Compression[J].Journal of Huazhong University of Science and Technology,1996,24(5):91-94.
[5]张正国,左明生.方钢管混凝土轴压短柱在短期一次静载下的基本性能研究[J].郑州工学院学报,1985,6(2):19-32. ZHANG Zheng-guo,ZUO Ming-sheng.Study on Basic Behavior of Short Columns of Square Tube Filled Concrete Subjected to Short-term Static Loading[J].Journal of Zhengzhou Engineering College,1985,6(2):19-32.
[6]赵同峰,王连广,吴少敏.短形钢管-钢骨高强混凝土梁抗弯承载力计算[J].东北大学学报:自然科学版,2007,28(9):1338-1341. ZHAO Tong-feng,WANG Lian-guang,WU Shao-min.Calculation Method of Flexural Capacity of Rectangular Steel Tube Beams Filled with Steel-reinforced High-strength Concrete[J].Journal of Northeastern University:Natural Science,2007,28(9):1338-1341.

相似文献/References:

[1]赵均海,杜文超,张常光.CFRP-方钢管混凝土轴压短柱承载力分析[J].建筑科学与工程学报,2015,32(06):30.
　ZHAO Jun-hai,DU Wen-chao,ZHANG Chang-guang.Analysis of Load Carrying Capacity of Concrete-filled Square CFRP-steel Tubular Stub Column Under Axial Compression[J].Journal of Architecture and Civil Engineering,2015,32(03):30.
[2]黄一杰,薛建阳,赵鸿铁,等.方钢管混凝土粘结强度试验研究[J].建筑科学与工程学报,2010,27(01):43.
　HUANG Yi-jie,XUE Jian-yang,ZHAO Hong-tie,et al.Experimental Study of Bond Strength of Concrete-filled Square Steel Tube[J].Journal of Architecture and Civil Engineering,2010,27(03):43.
[3]李帼昌,韩刘.内置CFRP圆管的方钢管混凝土中长柱偏压试验[J].建筑科学与工程学报,2009,26(01):1.
　LI Guo-chang,HAN Liu.Experiment on Eccentrically Compression of Middle Long Columns of Concrete-filled Square Steel Tube with Inner CFRP Circular Tube[J].Journal of Architecture and Civil Engineering,2009,26(03):1.

备注/Memo

备注/Memo:

收稿日期:2008-04-20
基金项目:辽宁省重点实验室基金项目(JG-200601)
作者简介:赵同峰(1979-),男,辽宁辽阳人,中国人民解放军沈阳炮兵学院讲师,东北大学工学博士研究生,E-mail:ztfgty@sohu.com。

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更新日期/Last Update: 2008-09-20