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The Pratt type trusses of a factory building are spaced at 4 m c/c & purlins are spaced at 1.2m c/c. The pitch of the truss is 1/4 & the span of the truss is 10 m.
written 6.3 years ago by
balakonde21
• 70
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modified 2.1 years ago
by
sagarkolekar
★ 11k
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The wind on the truss normal to the roof is $1100N/m^2$(suction), the dead load due roofing sheets purlins may be taken as$ 400 N/m^2$ and the live load may be taken as per IS 875(part-II)
(a) Design principal rafter of the truss and the main tie for the critical load combination as per IS800-2007.
(b) Also design the purlin for above truss.
(c)Write step by step procedure to design wind load as per IS 875(part-III).
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