Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (9): 7-12.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Mechanical Behavior of Reinforced Concrete Frame Structure with Diagonal Members

Cai Jian1  Zhou Fei2  Su Guang-qun2  Wang Li-jia3  Zuo Zhi-liang2   

  1. 1. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, China; 3. Higher Education Architecture Design and Plan Institute of GD Province, Guangzhou 510631, Guangdong, China
  • Received:2008-09-18 Revised:2008-12-02 Online:2009-09-25 Published:2009-09-25
  • Contact: 蔡健（1959-），男，教授，博士生导师，主要从事土木工程结构研究． E-mail:cvjcai@scut．edu．cn
  • About author:蔡健（1959-），男，教授，博士生导师，主要从事土木工程结构研究．
  • Supported by:

    科技部重大基础研究前期研究专项（2004CCA03300）

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Abstract:

A new kind of reinforced concrete（RC） frame structure with diagonal members is put forward,and the mechanical behavior of the new structure under vertical and horizontal loads is analyzed and compared with that of the conventional RC frame structure.The results indicate that the principal design sections of the new frame structure are located at the beam-diagonal member joint,the column-diagonal member joint and the column bottom,and that both the bending moments and the shearing forces of the new structure at the ends of beam and column greatly reduce. Moreover, the loading experiments and nonlinear finite element analysis of the large-size new structure shows that, in loading conditions, the plastic hinge appears first at the beam-diagonal member joint, then at the middle of the beam, that the ends of beam and column as well as the beam-column joint, all exhibit good mechanical behaviors, and that a reasonable design may provide the structure with good bearing and deformation capacities.

Key words: frame, diagonal member, mechanical behavior, finite element analysis