Structural analysis uses the concept of resolving forces, which can be analytically or graphically.
Roof bracing is often necessary to provide stability.
There is considerable design flexibility for roof trusses, but simple rules can be used as initial guidelines.
The same analysis can be performed graphically, with forces represented by lines drawn to scale in the same direction as the corresponding forces.
A truss, or lattice structure, is a structural assembly of small interconnected elements.
The traditional bolted joint has generally been replaced by welding.
Trusses can be designed to suit a wide range of requirements.
Real circumstances are generally different from the idealised conditions assumed in the analysis of trusses.
Trusses offer effective routes for distributing services.
Trusses can have a rectangular configuration, avoiding the potential intrusion of diagonal members, if the joints are rigid.
Copyright Tata Steel Europe Limited 2014