您现在的位置:建筑结构>> 期 刊>> 2014年>> 第04期>>正文内容
新型复合钢管混凝土柱设计方法探讨
刘明学
摘 要

 

(中国电子工程设计院北京时空筑诚建筑设计有限公司, 北京 100142)

摘要]介绍了外方内圆(或外矩形内圆)新型复合钢管混凝土柱(又称为新型复合柱)的受力特点和研究进展。通过一项具体工程中柱的设计,基于现有研究成果,给出了新型复合柱的承载力计算公式,提出了其与钢梁连接节点的设计与构造建议,并与普通矩形钢管混凝土柱进行了经济性比较。结果表明:在超高层建筑底部加强区采用新型复合柱,可充分发挥内圆钢管的约束作用,提高其抗震性能;建议的节点构造简单可靠,受力机理与现有研究成果基本相同;计算公式可以偏安全地计算新型复合柱的承载力;当框架柱截面较大时,新型复合柱可比普通矩形钢管混凝土柱节省用钢量。

关键词]超高层建筑; 新型复合钢管混凝土柱; 底部加强区; 设计方法

中图分类号:TU398+.9TU318.1        文献标识码:A        文章编号:1002-848X(2014)04-0039-05

Design method of new composite-sectioned concrete-filled steel tubular columns

Liu Mingxue

(Beijing Space-Time Creator Architecture Design Co., Ltd., China Electronics Engineering Design Institute, Beijing 100142, China)

Abstract: The characteristics of new composite-sectioned concrete filled steel tubular (CSCFT) columns were introduced as well as recent progress in the study of CSCFT columns. Based on the design procedure of CSCFT columns columns in a project and current research achievements of CSCFT columns, carrying capacity design formulas of CSCFT columns were introduced. The suggestions of design and construction method of I-shape steel beams CSCFT columns connection were proposed, and the economy comparison was conducted between CSCFT columns and common concrete-filled rectangular steel tube. The results indicate that the use of CSCFT columns in super high-rise buildings, especially at the bottom strengthened zone, can exploit the confining effect of inner circular steel tube to the full and improve the seismic performance of CSCFT columns. The proposed steel beams CSCFT columns connection is simple and reliable, and its mechanical behavior is much the same as current research achievements. The proposed design formulas of CSCFT columns can calculate its carrying capacity safely. The use of CSCFT columns save more steel than common concrete-filled rectangular steel tube when the section of frame column is comparatively large.

Keywords: super high-rise building; new composite-sectioned concrete-filled steel tubular column; bottom strengthened zone; design method

作者简介:刘明学,博士,高级工程师,一级注册结构工程师,Email: liumingxue@ceedi.cn

参考文献

1]钟善桐. 圆形和方形钢管混凝土柱工作性能与经济性比较[J. 哈尔滨工业大学学报:自然科学版,200335(增刊):26-29,39.

2CECS 159:2004 矩形钢管混凝土柱结构技术规程[S.北京:中国计划出版社,2004.

3]范重,钱稼茹,吴学敏. 核心配筋柱抗震性能试验研究[J.建筑结构学报,2001,22(1)14-19.

4]林立岩,李庆刚. 钢管混凝土叠合柱的设计概念与技术经济性分析[J. 建筑结构,2008,38(3)17-21,41.

5]钱稼茹,张扬,纪晓东,等. 复合钢管高强混凝土短柱轴心受压性能试验与分析[J. 建筑结构学报,2011,32(12)162-169.

6]钱稼茹,李宁波,纪晓东,等. 外方内圆复合钢管混凝土柱抗震性能试验研究[J. 建筑结构学报,201334(5)96-104.

7]吕天启,赵国藩. ()钢管增强方钢管混凝土偏压柱极限承载力分析数值方法[J. 大连理工大学学报:自然科学版,200141(5)612-616.

8]周蓉,魏雪英,赵均海,等. 内圆外方实复式钢管混凝土柱偏压承载力研究[J.工业建筑,200939(增刊):664-668.

9]马淑芳,郭红香,赵均海,等. 复式钢管混凝土柱偏压试验[J. 工业建筑,200737(12)28-30.

10]吕西林,李学平,余勇. 方钢管混凝土柱与钢梁连接的设计方法[J. 同济大学学报:自然科学版,200230(1)1-5.

11]陈志华,苗纪奎,赵莉华,等.方钢管混凝土柱-H型钢梁节点研究[J. 建筑结构,2007,37(1)50-5659.

下载地址

    你还没注册?或者没有登录?这篇论文要求至少是本站的注册会员才能阅读!

    如果你还没注册,请赶紧点此注册吧!

    如果你已经注册但还没登录,请赶紧点此登录吧!