Steel and Composite Structures

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The practice of blind bolting connections to structural hollow sections: A review

  • Barnett, T.C. (School of Civil Engineering, The University of Nottingham) ;
  • Tizani, W. (School of Civil Engineering, The University of Nottingham) ;
  • Nethercot, D.A. (Department of Civil and Environmental Engineering, Imperial College of Science, Technology and Medicine)
  • Published : 2001.03.25
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Abstract

Due to aesthetic, economic, and structural performance, the use of structural hollow sections as columns in both continuous moment resisting and nominally pinned construction is attractive. Connecting the beams to these sections is somewhat problematic as there is no access to the interior of the section to allow for the tightening of a standard bolt. Therefore, bolts that may be tightened from one side, i.e., blind bolts, have been developed to facilitate the use of site bolting for this arrangement. This paper critically reviews available information concerning blind bolting technology, especially the performance of fasteners in shear, tension, and moment resisting connections. Also provided is an explanation of the way in which the results have been incorporated into design guidance covering the particular case of nominally pinned connections. For moment resisting connections, it is concluded that whilst the principle has been adequately demonstrated, sufficient data are currently not available to permit the provision of authoritative design guidance. In addition, inherent flexibilities in the connections mean that performance equivalent to full strength and rigid is unlikely to be achievable: a semicontinuous approach to frame design will therefore be necessary.

Keywords

References

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