Roof Truss Lattice Girder Truss
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Roof truss lattice girder truss. The terms are generally applied to the planar truss. Mctear co of belfast ireland began fabricating these trusses in wood starting around 1866. Buildings constructed in l or t shapes use girder truss systems where the roof changes direction. It was developed in ireland as a wide span shallow rise roof truss for industrial structures.
Girders may also be designed to accommodate special applications or designs. A girder truss is designed to support other secondary roof supports. Girder trusses are designed to carry additional loads other than standard roof loads. The truss or lattice girder is a triangulated framework of members where loads in the plane of the truss or girder are resisted by axial forces in the individual members.
North light truss is the oldest and most economical kind of truss. The belfast truss is a cross between the town s lattice truss and the bowstring truss. The main uses are. Using these structures in roof design eliminates the need for a load bearing wall below resulting in open floor plans.
Space frame is formed when the members lie in three dimensions.