The roof system of a single-storey steel framed building is made up of steel deck supported by OWSJ (open web steel joists) spaced at 1.95m. The maximum allowable deflection for the steel deck under snow load is span/240. Snow Load (ULS, SLS): Suls=1.92 kPa ; Ssls =1.73 kPa. Wind Load (ULS): WULS = 0.51kPa Dead Loads: Roof Assembly and other attachments on steel deck: 150 mm of glass fibre rigid insulation 4ply asphalt, gravel 38mm deep steel roof deck (estimated self-weight = 0.10 kPa) Ducts/pipes/wiring a) Determine the total unfactored dead load supported by the steel deck, D. (1.5) b) Select a suitable double span steel deck that satisfies limit states design. Show all calculations and provide all checks.
Question:-
The roof system of a single-storey steel framed building is made up of steel deck supported by OWSJ (open web steel joists) spaced at 1.95m. The maximum allowable deflection for the steel deck under snow load is span/240. Snow Load (ULS, SLS): Suls=1.92 kPa ; Ssls =1.73 kPa. Wind Load (ULS): WULS = 0.51kPa Dead Loads: Roof Assembly and other attachments on steel deck: 150 mm of glass fibre rigid insulation 4ply asphalt, gravel 38mm deep steel roof deck (estimated self-weight = 0.10 kPa) Ducts/pipes/wiring a) Determine the total unfactored dead load supported by the steel deck, D. (1.5) b) Select a suitable double span steel deck that satisfies limit states design. Show all calculations and provide all checks.
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