Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (4): 45-49.

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Experimental Study of Unbonded PC Flat Slab-T-Shaped Column Connections Under Reversed Loads

Li Guang-xing  Cai Jian  Su Jie  Wu Yuan-qing   

  1. Department of Civil Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2004-07-23 Online:2005-04-25 Published:2005-04-25
  • Contact: 李光星(1972-)，男，博士生，广州市设计院工程师，主要从事异形柱住宅结构体系研究． E-mail:Lg_x@ sina.com
  • About author:李光星(1972-)，男，博士生，广州市设计院工程师，主要从事异形柱住宅结构体系研究．

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Abstract:

Based on the experimental study of six unbonded prestressed concrete fiat slab-T-shaped column connec-tions under low-cycle reversed loads．the loading processes and the failure features of the connection specimens were analyzed.The effects of the section parameters of the T-shaped column and the unbalanced moments in differ-ent directions on the performance of the connections,such as the stiffness,the degradation of the bearing ability,the energy-consumption ability and the distortion-recovery ability,were also analyzed by comparison.Moreover,the seismic behavior of the connections was also evaluated.The results indicate that the connections are of excellent seismic behavior,and that the web length c l of the T-shaped column is decisive to the seismic behavior of the connections.

Key words: unbonded prestressed concrete, fiat slab-T-shaped column connection, low-cycle reversed load, seis-mic behaVior