Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: ACI 318 Appendix D

[Subject Prev][Subject Next][Thread Prev][Thread Next]

Hi Bill,

For interior footings we will try to use post-installed anchors if they work;  however to the best that we can justify these post-installed anchors nowadays ,per Appendix D, can hold up to about 7 kips with 6” edge distance.  Using through-bolts is one of our options if the load goes beyond this magnitude for interior footing.  Off course the concrete slab has to be sawcut or removed before through-bolts can be installed.

 

From: Bill Allen [mailto:t.w.allen(--nospam--at)cox.net]
Sent: Thursday, April 16, 2009 3:21 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: ACI 318 Appendix D

 

Hi, Freeman.

 

I have found that through bolts aren't very popular at interior shear walls for some reason.

 

:o).

 

Hope all is well.

 

 

T. William (Bill) Allen, S.E.

ALLEN DESIGNS

Consulting Structural Engineers
 
V (949) 248-8588 F(949) 209-2509

-----Original Message-----
From: Freeman Tang [mailto:FTang(--nospam--at)gouvisgroup.com]
Sent: Thursday, April 16, 2009 2:51 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: ACI 318 Appendix D

 

We also use through-bolts for fixing missing holdowns at shear wall ends.  Per Appendix D section 2.2 through bolts are not included.

Freeman Tang

Gouvis Engineering

 

From: Garner, Robert [mailto:rgarner(--nospam--at)moffattnichol.com]
Sent: Thursday, April 16, 2009 2:08 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: ACI 318 Appendix D

 

In our office, we through-bolt all our concrete anchors and avoid Appendix D entirely.

 

One engineer in our office has a detail where he attaches the heads of his anchor bolts to chains which are in turn fastened to large chunks of Iron dropped in the bottom of the concrete pour, all to avoid Appendix D.

 

"We don't need no stinkin' Appendix D".

 


From: Bill Allen [mailto:t.w.allen(--nospam--at)cox.net]
Sent: Thursday, April 16, 2009 1:26 PM
To: Seaint
Subject: ACI 318 Appendix D

 

O.K., I've beaten my head against the wall long enough. I've decided that a post-installed anchor won't work in tension for anything I design.

 

I feel better now.

 

 

T. William (Bill) Allen, S.E.

ALLEN DESIGNS

Consulting Structural Engineers
 
V (949) 248-8588 F(949) 209-2509