Roof Truss Analysis Example

Spacing of the truss 3 0m.

Roof truss analysis example.

A truss girder painted gray and bar joists painted white. 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. Nodal spacing of the trusses 1 2m. The reactions at the supports are given as shown.

At 25 ft x 10 ft panel x 8 panels 2000 sf r1 1 2 0 001 x 2000 sf 0 60. Span of roof truss 7 2m. We will now discuss the trusses that are used in making stable load bearing structures. We know the basics of equilibrium of bodies.

Self weight of long span aluminium roofing sheet 0 55mm gauge thickness 0 019 kn m 2. Weight of ceiling adopt 10mm insulation fibre board 0 077 kn m 2. Example roof truss analysis. The photo below shows two types of trusses.

Roof trusses they are often. The examples of these are the sides of the bridges or tall tv towers or towers that carry electricity wires. Lr 20 psf x 0 6 12 psf plr int 12 psf x 25 ft x10 ft 3 00 kdue roof live load. Truss analysis using method of joints is greatly simplified if.

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

Analysis of truss by the methods of joints and by the methods of section is explained in the article. Dead loads on truss girder. In this example a parallel chord steel roof truss is analyzed for typical dead and roof live loads.