Drilling for Anchor Bolts


  #1  
Old 05-28-07, 05:19 PM
S
Member
Thread Starter
Join Date: Apr 2007
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
Drilling for Anchor Bolts

I am having a 6" thick slab poured and will have to drill for anchor bolts. How long do I need to wait before I can drill ?

jon
 
  #2  
Old 05-28-07, 05:42 PM
T
Member
Join Date: Mar 2006
Location: Austin, TX
Posts: 1,304
Upvotes: 0
Received 0 Upvotes on 0 Posts
If you are having it poured, why would you need to drill for anchor bolts? They should be placed before the pour.
 
  #3  
Old 05-30-07, 09:41 AM
S
Member
Thread Starter
Join Date: Apr 2007
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
Hi,

I am putting up a steel building and the trusses are steel with very little forgiveness in placing the bolts. The margin for error on placement seemed much higher if we tried to pour around the bolts.

THe slab was poured yesterday. Any input on when it would be safe to drill ? It is 4000 psi.

jon
 
  #4  
Old 05-30-07, 11:13 AM
Join Date: Mar 2005
Location: USA
Posts: 5,651
Received 1 Upvote on 1 Post
Drilling for Anchor Bolts

Drill soon.

Whatever you put in will never be as strong as a bolt with a plate or washer on the embedded end.

Dick
 
  #5  
Old 05-30-07, 03:54 PM
T
Member
Join Date: Mar 2006
Location: Austin, TX
Posts: 1,304
Upvotes: 0
Received 0 Upvotes on 0 Posts
What you do is ask for scaled drawings of the column foot plates. Then you make templates to hold the bolts in place from 3/4" plywood. This does 2 things:

1. It holds the bolts in the proper place.
2. It gives you 3/4" to adjust the column height (or tweak the bolt horizontally).

Drill soon and hope you don't hit too much rebar.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: