带约束拉杆矩形钢管混凝土短柱轴压性能的试验

蔡健; 何振强; 陈星

doi:10.13204/j.gyjz200703019

带约束拉杆矩形钢管混凝土短柱轴压性能的试验

doi: 10.13204/j.gyjz200703019

1.
1 华南理工大学,土木工程系,广州 510641;
2.
2 广东新广国际集团广州,510600;
3.
3 广东省建筑设计研究院,广州 510010

基金项目:

广东省自然科学基金重点基金资助项目(012356);华南理工大学土木工程系与广东省建筑设计研究院合作科研项目

详细信息

作者简介:
蔡健男 1959年 7月出生教授博士生导师

计量
- 文章访问数: 59
- HTML全文浏览量: 8
- PDF下载量: 46
- 被引次数: 0
出版历程
- 收稿日期: 2006-09-20
- 刊出日期: 2007-03-20

EXPERIMENTAL STUDY ON BEHAVIOR OF RECTANGLE CFT STUB COLUMN WITH BINDING BARS SUBJECTED TO AXIALLY LOADING

1.
1 Civil Engineering Dept.,SCUT Guangzhou 510641;
2.
2 Guangdong Xinguang International Group Guangzhou 510600;
3.
3 Civil &Arch.Design Institute of Guangdong Guangzhou 510100

摘要

摘要: 针对约束拉杆对矩形钢管混凝土柱轴压力学性能的影响,对8个轴压试件进行试验,其中1个不设约束拉杆,7个设置约束拉杆。试验主要参数为约束拉杆直径和间距,钢管宽厚比,截面长宽比。试验结果表明:相对于方形截面试件,矩形截面试件设置约束拉杆后,在轴向压力作用下,试件的承载力提高幅度不明显,但对应于峰值荷载的竖向应变值随约束拉杆的加强相应增大,试件的塑性变形能力增大,延性提高。利用国内已有文献中关于矩形钢管混凝土承载力计算方法及EC4(1996)关于方形钢管混凝土计算方法,对带约束拉杆矩形钢管混凝土轴压试件承载力进行计算,发现计算结果比试验值偏低,计算方法偏于保守。
- 矩形钢管混凝土 /
- 约束拉杆 /
- 承载力 /
- 延性
Abstract: A test on eight specimens of rectangle concrete filled steel tubular ( R -CFT) stub columns, including onespecimen without binding bars and seven specimenswith binding bars, is carried out, aiming at axially -loaded behavior ofR -CFT influenced by binding bars. The primary study parameters are diameter and space of binding bar, width -thicknessratio of steel tube and length-width ratio of specimen cross-section. It is shown that the binding bars do enhance ductility anddeformability of R -CFT, though not contributing to the ultimate bearing capacity of R -CFT. Finally, a comparison betweenthe ultimate bearing capacity, calculated by the current methods at home and that of EC4(1996) respectively, and thecounterpart of experiment results is conducted, which shows that the results of calculation are conservative.
- square CFT stub column /
- binding bars /
- bearing capacity /
- ductility

HTML全文

参考文献(14)

Shakir-Khalil H,Zeghiche J. Experimental Behavior of Concrete Filled Rectangular Hollow Section Columns[J].The Structural Engineer,1989,(19):346-353.

Shakir-Khalil H,Zeghiche J. Further Tests on Concrete Filled Rectangular Hollow Section Columns[J].The Structural Engineer,1990,(20):405-413.

Schneider S P. Axially Loaded Concrete Filled Steel Tubes[J].Journal of Structural Engineering ASCE,1998,(10):1125-1138.

Bradford M A. Design Strength of Slender Concrete Filled Rectangular Steel Tubes[J].ACI Journal,1996,(02):229-235.

Wang Y C. A Design Method for Concrete-Filled Hollow Section.Composite Columns[J].The Structural Engineer,1997,(21):368-372.

韩林海,杨有福. 矩形钢管混凝土轴心受压构件强度承载力的试验研究[J].土木工程学报,2001,(04):22-31.

蒋涛,沈之容. 矩形钢管混凝土轴压短柱承载力计算[J].特种结构,2002,(02):4-6.

韩林海. 钢管混凝土结构[M].北京:中国科学技术出版社,2000.

陈德明. 带约束拉杆异形钢管混凝土柱的基础力学研究[D].广州:华南理工大学,2000.

Zhao X L,Hancock G J. Tests Determine Plate Slenderness Limits for Cold-Formed Rectangular Hollow Section of Grade C450[J].Steel Construction,1991,(04):2-16.

GJB 4142-2000.战时军港抢修早强型组合结构技术规程[S].

韩林海,陶忠. 方形截面钢管混凝土构件的设计计算[J].钢结构,1998,(04):39-45.

杨有福. 矩形钢管混凝土构件基本力学性能的若干关键问题的研究[D].哈尔滨:哈尔滨工业大学,2003.

EC4.Design of Steel and Concrete Structures.Part1.1.General Rules and Rules for Building[Z].

施引文献

资源附件(0)

访问统计