A light-gage cold-formed steel channel used as purlins are simply supported on the roof truss 4m apart. Sag rods are placed at midspan. Assuming compact section and loads acting on the flange. Use ASD method. The roof continously braces the purlin. Given: Purlin Spacing = 1.5 m Slope = 15 degrees DL = 2.5 kpa LL = 2.5 kpa WL = 1.0 kpa Windward coefficient = 0.25 Properties of channel section: Sx = 185.17x10^3 mm3 Sy = 16.55x10^3 mm3 Zx = 223x10^3 mm3 Zy = 33.4x10^3 mm3 rts = 21 mm ry = 16.79mm Cb = 1.30 Determine allowable flexure strength about the y-axis and x-axis. (kN/m)

A light-gage cold-formed steel channel used as purlins are simply supported on the roof truss 4m apart. Sag rods are placed at midspan. Assuming compact section and loads acting on the flange. Use ASD method. The roof continously braces the purlin. Given: Purlin Spacing = 1.5 m Slope = 15 degrees DL = 2.5 kpa LL = 2.5 kpa WL = 1.0 kpa Windward coefficient = 0.25 Properties of channel section: Sx = 185.17x10^3 mm3 Sy = 16.55x10^3 mm3 Zx = 223x10^3 mm3 Zy = 33.4x10^3 mm3 rts = 21 mm ry = 16.79mm Cb = 1.30 Determine allowable flexure strength about the y-axis and x-axis. (kN/m)

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter10: Plate Girders

Section: Chapter Questions

Problem 10.7.9P

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