Anchor Bolt Length

[weron4u]

I have an application where a T-section is going to be a vertical column. I am driving two 5/8" bolts through the flange on both sides of the web directly into a vertical concrete wall as shown below.

|
| <---- T-section
|
|
|________
|| |
|| | <-----concrete foundation
| |
|_______|


I was hoping to get a suggestion on what type of bolts to use, and how far to drive them into the concrete. They are only holding a total of 5,000#. I was going to use A-307 bolts and drive them 3" into the concrete, however there is no calculation behind this.

Thanks,
Weron4u

 

[UcfSE]

It doesn't look like there's enough information for us to really say yay or nay. For instance, what is the bolt diameter or is that determined are the bolts in tension or shear, what's is the concrete strength, what is the source of the uplift, what kind of edge distances and spacing are you looking at, are they cast-in-place or post-installed, and so on. You should check out Hilti products. Their epoxy anchors could easily handle a 5000-lb load given that you properly take into account edge distance and spacing effects. Expansion bolts may also work as well. Ramset also makes good concrete anchors. There are other manufacturers out there so be sure to pick one that is popular and available in your area if you choose to go that route.

 

[boo1]

Does't OSHA require 4 bolt base connetions for columns?