DESIGN OF ANCHOR BOLT FOR POLE:

No.of bolt = 4

From staad analysis page no: 9 (FACTORED LOAD 13), JOINT: 03

Moment acting of base = 5.894 KNM

Tensile force acting on base = 8.444 KN

Based on moment,

Tensile force acting on base = 5.894/0.2= 29.47/2 = 14.74 KN

Tensile force acting/Bolt = 8.444/4 KN

= 2.11 KN

Total Tensile force acting /bolt = 14.74 + 2.11 = 16.85 KN

Shear force acting/Bolt = (0.0² + 4.603²)½ =4.603/4

= 1.15 KN

For M20, 8.8 Grade anchor,

Tensile Capacity of M20, 8.8 grade bolt = 109.80 KN

109.8 KN > 16.85 KN Hence Safe

Shear Capacity of M20, 8.8 grade bolt = 91.90 KN

91.90 KN > 1.15 KN Hence Safe

Combined Tension & Shear Check,

16.85/109.80 + 1.15/91.90 <1.4

0.165 <1.4 Hence Safe

DESIGN OF BOND LENGTH:

Bond length Ld = F/π x dx x Tbd

Where, Tbd =1.534 N/mm² (for plain bar)

Tensile load = 16.85 KN

Ld = 16.85 x1000/πx20x1.534 = 175 mm