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Determine safe load p that can be carried by than as shown bolts are 20mm ϕ 4.6 grade.Thickness of bracket plate is 10mm
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Step I

list bolt value

shear capacity of bolt=fub×Anb×nn3Ymb

=400×245×13×1.25

Vdsb=45.26 kN

bearing capacity of bolt=2×Kb×d×t×fu

find kb

e3do=403×22=0.60

P3do=0.25=803×22=0.25=0.96

fubfu=400410=0.97

Vdpb=2×0.6×20×10×410

Vdpb=98.4kN

Step II

Direct force per bolt or load in each bolt

F1=$\frac{load}{No.\ bolt …

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