Steel and Composite Structures

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Ductility analysis of bolted extended end plate beam-to-column connections in the framework of the component method

  • Girao Coelho, Ana M. (Department of Civil Engineering, Polytechnic Institute of Coimbra) ;
  • Simoes da Silva, Luis (Department of Civil Engineering, University of Coimbra - Polo II) ;
  • Bijlaard, Frans S.K. (Steel and Timber Structures, Faculty of Civil Engineering and Geosciences, Delft University of Technology)
  • Received : 2005.01.04
  • Accepted : 2005.07.25
  • Published : 2006.02.25
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Abstract

The rotational behaviour of bolted extended end plate beam-to-column connections is evaluated in the context of the component method. The full moment-rotation response is characterized from the force-deformation curve of the individual joint components. The deformability of end plate connections is mostly governed by the bending of the column flange and/or end plate and tension elongation of the bolts. These components form the tension zone of the joint that can be modelled by means of "equivalent T-stubs". A systematic analytical procedure for characterization of the monotonic force-deformation behaviour of individual T-stub connections is proposed. In the framework of the component method, the T-stub is then inserted in the joint spring model to generate the moment-rotation response of the joint. The procedures are validated with the results from an experimental investigation of eight statically loaded extended end plate bolted moment connections carried out at the Delft University of Technology. Because ductility is such an important property in terms of joint performance, particularly in the partial strength joint scenario, special attention is given to this issue.

Keywords

References

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