Connections
Beam-beam connections
The principles of beam-beam connections are similar to those for beam-to-column connection, although some additional preparation may be necessary if beams are to be connected with the top flanges level as is normal.
Beam to column connection
Beam to column connections are very common and a variety of details can be used.
Comparison between welding and bolting
In practice, site connections are bolted, whilst attachments during fabrication are welded.
Connections between steel and concrete
Connections between steel and concrete must account for differences in strength and accuracy between the two materials.
Connections in trusses
Truss connections are generally welded, except for site splices.Truss connections are generally welded, except for site splices.
Finishes and corrosion protection
It is not normal practice to grind welds unless appearance is critical.
Introduction
The function of a connection is to make an effective attachment between individual elements.
Joints in hollow section
Joints in hollow sections must account for the relative inaccessibility for bolting unless single sided bolting systems which permit the use of standard end plate or angle cleat connections are used.
Movement joints and sliding/rotating bearings
Movement joints may require special connection details.
Secondary fixings - cladding etc
Hot rolled structural sections are less precise than smaller scale components and attachments should therefore provide for some site adjustment.
Welding
Welded connections are formed by locally heating the surfaces to be connected allowing them to fuse.

