Embed Anchors 1

[kcgriz]

Can anyone tell me the calculation I need to find the diameter and length of anchor I need to safely anchor a flight of stairs? The sides are MC12x10.6 with standard pan steps.

 

[rafamal]

Your question is too broad are you looking to bolt your stair to concrete? how big is the stair? what type of importance factor you need to apply(is it a school or an industrial stair)? is it an indoor stair? once you answer this questions and others you can go and check a catalog from Hilti for example and there you will find how to calculate the resistance of a fastener that you choose

Rafael Maldonado
Steel Connection Design

 

[Lion06]

If you're using an embed plate with headed studs you need to pick a diameter and length and pattern and check it with App. D. You could try using shear friction with debar welded to the plate. I do that when the loads get too high for the App. D calcs.