PROFIS ENGINEERING
Figure 6.3d.
Reference Figure 6.3d [ 62 ] and Table 6.3. The eccentric shear load in the y- direction( 8000 lb) creates torsion on the anchors. Knowing the net shear load acting on each anchor in the x / y direction( V x / y, net, n) a resultant shear load( V res) can be calculated. The distance“ x” can also be calculated.
Reference Table 6.3. PROFIS Engineering assumes the x component of the resultant shear load( V x) is calculated by summing the net load acting in the x direction on only those anchors nearest to the fixed edge where concrete breakout is being considered( i. e. anchors 1, 2, 3 and 4 for this example):
V x = V x, net, 1 + V x, net, 2 + V x, net, 3 + V x, net, 4
= 286lb + 286lb + 286lb + 286lb = + 1144lb
Reference Table 6.3. The y component of the resultant shear load( V y) is calculated by summing the net load acting on each anchor towards the fixed edge where concrete breakout is being considered( i. e ΣV y, net, n in the y- direction):
V
y = V y, net, 1 + V y, net, 2 + V y, net, 3 + V y, net, 4 + V y, net, 5 + V y, net, 6 + V y, net, 7 + V y, net, 8 = −1686lb − 1229lb − 771lb − 314lb − 1686lb − 1229lb − 771lb − 314lb = − 8000lb
The resultant shear load( V res) is therefore predicated on( a) shear load acting in the x direction on the anchors nearest to the y- edge( V x) and( b) shear load acting in the y direction towards the y- edge( V y) such that:
V res = V x
2 + Vy
2 =( 1144lb)
2 +( 8000lb)
2 = 8081lb
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