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Re: Cold-formed steel connection

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This is my guess:

Use the equation for bearing capacity with consideration of bolt hole deformation where that is a required by design.

Bolt hole deformation is a design consideration mostly in continuous construction where temperature and support settlement has not been taken into account. Deformation capacity of bolt hole will redistribute moments in this situation.

For simply supported construction deformation capacity of bolt holes is important where multiple bolts are used, e.g. in a tension splice, theoretically putting outer bolts under higher stresses.

Again, deformation capacity of bolt holes will redistribute and almost equalize stresses in bolts.

Hope this helps.

Rudra Nevatia
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