Glulam – Primary structures
Truss beams

Glulam – Primary structures
Truss beams

Glulam – Primary structures
Truss beams

Truss beams

For the implementation of larger spans in roof structures (> 30 m) trusses are an architecturally appealing, economical and resource-saving alternative to solid wall beams made of glulam. The wooden truss usually consists of continuous chords to which the diagonals and/or posts are connected. A common and simple variant for forming these connections are bar dowel connections. Due to the predominant normal force exposure in the struts and chords of such beams, it is useful to use homogeneous glulam.

Technical
Data

Span > 30 m
Usual beam spacing (other dimensions possible) 5 – 7 m
Beam width (2 cm preferred dimensions each) 10 to 26 cm
Cantilevers possible
Height of components (for structural design) h = l/15 – l/10
Possible fire resistance classes R 30 > without problems
R 60 > with additional costs
Preferred strength classes GL 24h, GL 30h

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