Design of Steel Structure
Diameter of a bolt hole is usually taken as

gross diameter of bolt
nominal diameter of bolt
nominal diameter + 2.0 mm
nominal diameter + 1.5 mm

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Design of Steel Structure
The sway bracing is designed to transfer

10% of the top panel wind load to bottom bracing
25% of the top panel wind load to bottom bracing
50% of the top panel wind load to bottom bracing
2Vi % of the top panel wind load to bottom bracing

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Design of Steel Structure
The elastic strain for steel is about

1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain
1/2 of strain at the initiation of strain hardening and about 1/12 of maximum strain
1/12 of strain at the initiation of strain hardening and about 1/120 of maximum strain
1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain

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