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View NCCI for Section 7: Hollow section joints

Taken from BS EN 1993-1-8: 2005

Design model for welded joints in trusses using structural hollow sections  (SN040)
In trusses with structural hollow sections, the members are generally welded directly to each other. The selection of member sizes has a direct effect on the cost of fabrication and on the joint resistance. Therefore, it is important for the architect and the design engineer to recognise at the outset, the effects that their design decisions will have on the joint resistance, the fabrication, assembly and erection of the structure.
Keywords:
7.2; 7.4; 7.5; 7.6; 7.7; CHS; RHS; SHS; truss
Valid until:
Jan 2015
Created by:
SCI
Created on:
Apr 2006
BSI Approval:
Not reviewed by BSI
Design models for splices in structural hollow sections  (SN044)
Bolted connections are usually convenient for site connections of prefabricated parts of the structure. RHS end plate splices have usually been bolted along the four sides of the plate, however, during the 1980s the possibility of bolting only on two opposite sides was investigated and it proved to be an effective solution. On the other hand, CHS splices usually present bolts evenly placed radially around the hollow section. The recommendations for simple designs given in this NCCI have been taken from the relevant CIDECT Design Guides. Additional background on this topic may be found in an SCI/BCSA publication about joints in steel.
Keywords:
CHS; RHS; SHS
Valid until:
Jan 2015
Created by:
SCI
Created on:
May 2006
BSI Approval:
Not reviewed by BSI