Design of Steel Structure
The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)

increase in height
decrease in thickness
decrease in h/t ratio
increase in h/t ratio

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Design of Steel Structure
The sway bracing is designed to transfer

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

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