. Design of elevated steel tanks. hen T = = )o7SrBF6D5s 29. 7. Tables of T/ind Stresses. Assuming the axis of rotation through the centerof the tower, the following tables are derived for Tost Rod andStrut Stresses,due to wind forces. For towers having an evennumber of supports,the maximum post compression is obtained byassuming the wind blowing in the direction of a horizontal diagonalof the tower. The maximum Hod and Strut Stresses occur when thewind is taken in a direction parallel to two sides of the tower. a - Angle between the rod and the = Angle between the rod and the
. Design of elevated steel tanks. hen T = = )o7SrBF6D5s 29. 7. Tables of T/ind Stresses. Assuming the axis of rotation through the centerof the tower, the following tables are derived for Tost Rod andStrut Stresses,due to wind forces. For towers having an evennumber of supports,the maximum post compression is obtained byassuming the wind blowing in the direction of a horizontal diagonalof the tower. The maximum Hod and Strut Stresses occur when thewind is taken in a direction parallel to two sides of the tower. a - Angle between the rod and the = Angle between the rod and the = Angle post makes with a vertical,w = Angle the horizontal diagonal of tower makes withthe adjoining strut. Posts Vertical. Number Posts. Posts. 4 M * 2R 6 M * 3R 8 M * 4R 10 M * 5R Rods.(£a- seca ieca (M6 (Iff8 (M10 {LI Posts. 2R)sec03R)sec04R)sec$5R)sec0 (PA- 3$ seca(PA- pj seca Posts Battered. Rods. Struts. ff + R cos 0W + R cos 0W + R cos 0W + R cos 0 Struts. (Pa- Pa) S3Pj Four seca (Y/+RcosO)(PA-P^EDn0coswseca (^+RcosO)(PA-PA)sin^cos w seca (Y/+RcosQ)(PA-PA) sin0 cos w seca (W+RcosO)£(Pa-Pa) sin^cos w Six Post. \ X F 3
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