Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (2): 107-111.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Experimental Investigation into Square CFT Stub Columns with Binding Bars Under Eccentric Loads

He Zhen-qiang  Cai Jian   

  1. College of Architecture and Civil Engineering,South China Univ.ofTech.,Guangzhou 510640,Guangdong,China
  • Received:2005-08-31 Online:2006-02-25 Published:2006-02-25
  • Contact: 何振强(1973-)，男，博士生，主要从事结构工程和高层结构设计的研究 E-mail:saint-h@sohu.com
  • About author:何振强(1973-)，男，博士生，主要从事结构工程和高层结构设计的研究
  • Supported by:

    广东省自然科学基金资助项目(0209650)

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Abstract:

In order to investigate the mechanics properties of square CFT(Concrete-Filled Tubular)stub columns with binding bars under unilateral eccentric loads,14 specimens were tested by considering the parameters such as the steel ratio.the load eccentricity ratio and the location of the binding bars.Experimental results indicate that (1)the bearing strengths of the specimens decrease with the increase in the load eccentricity ratio while they in-crease with the increase in the steel ratio,and(2)binding bars help to improve the ultimate strength and the duc-tilitv 0f the eccentric-loaded specimens.The tested results were finally compared with the results calculated by the methods presented in the current specifications at home,showing that the curent specifications,in general,have undervalued the ultimate strength of the specimens with binding bars.

Key words: binding bar, square CFF stub column, bearing strength, ductilit