Design a roof truss to the following particulars Span of truss = 9 m…

Question

Design a roof truss to the following particulars

Span of truss = 9 m

Inclination of roof with horizontal $30^\circ$.

Height of eaves 6 m

Spacing of trusses = 3.5 m

Roofing shall be of G.I sheets

The truss is supported on 400 mm thick brick walls. Building is located in Delhi.

Take risk coefficient $k_1 = 1$, Terrain factor $k_2 = 0.85$ and Topography Factor $k_3 = 1$.

The basic wind speed for Delhi is 47 m/sec.

Adopt the geometry of truss shown in fig. 1