Question
Download Solution PDFThe given figure shows:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
In double cover butt joint, the bolts or rivets can be placed in the following manner:
1. In multiple rows having zero staggered pitch called chain riveting as shown in the following figure:
2. In multiple rows having either non-uniform pitch or having staggered pitch i.e. bolts are placed in a zig-zag pattern as shown below:
Additional Information
As per IS 800:2007, the tensile strength based on rupture of the net section of the plate is given as:
Where,
fu = Ultimate strength of the plate
Anet = Minimum net area of the section
γ = Factor of safety for plate
To calculate Anet, all possible failure paths (straight as well as zig-zag) are required to be considered and the corresponding net area is to be computed for each possible failure path and the minimum net area is to be selected.
Where,
t is the thickness of the plate joined.
dh is the diameter of the hole
s is staggered pitch , g is gauge distance, b is width of plate
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