Roof Truss Analysis Example

Ce 331 summer 2015 roof truss analysis example 1 3 in this example a parallel chord steel roof truss girder is analyzed for typical roof dead and live loads.

Roof truss analysis example.

Learn truss analysis methods with examples. The reactions at the supports are given as shown. We know the basics of equilibrium of bodies. Lr 20 psf x 0 6 12 psf plr int 12 psf x 25 ft x10 ft 3 00 kdue roof live load.

Self weight of long span aluminium roofing sheet 0 55mm gauge thickness 0 019 kn m 2. Span of roof truss 7 2m. Weight of ceiling adopt 10mm insulation fibre board 0 077 kn m 2. Plr ext 12 psf x 25 ft x 10 2 ft 1 50 kdue roof live load 7 3 k 1 5 k 1 5 k.

Analysis of truss by the methods of joints and by the methods of section is explained in the article. Roof trusses they are often. Example roof truss analysis. In this example a parallel chord steel roof truss is analyzed for typical dead and roof live loads.

Nodal spacing of the trusses 1 2m. At 25 ft x 10 ft panel x 8 panels 2000 sf r1 1 2 0 001 x 2000 sf 0 60. Truss analysis using method of joints is greatly simplified if. State whether the members are in tension or compression.

Dead loads on truss girder. Spacing of the truss 3 0m. The photo below shows a truss girder painted gray supporting the roof of a gymnasium. We will now discuss the trusses that are used in making stable load bearing structures.

Example 3 2 determine the force in each member of the roof truss as shown. Roof live load lr 20 psf r10 6 r1 1 0 r1 1 2 0 001 at. Example roof truss analysis4 6.