Titen concrete anchors
Titen concrete anchors
(OP)
I'm wondering if others have experience with post-installed concrete anchors for EXTERIOR environments? I'm frustrated enough with the dismal success of concrete contractors casting post-brackets in place on projects that I'm ready to go to a post-installed concrete anchor. I have used Simpson Titen HD screws and love them, and our field crews do too. However, in Simpson's literature, they recommend that these fasteners be used for interior environments or temporary exterior applications only. I know that epoxy, or other adhesives are an acceptable alternative method, but the installation steps are far more critical than with the installation of a Titen screw. Crews don't like adhesives either.
I know that there are expansion-type anchors out there, but I just don't care for that thought when placing into the top of an 8" concrete wall. Does anybody have any other products that they use that are quick to install, can handle exterior environments, and are good long-term solutions? Should I be convinced that expansion-type anchors are acceptable? Has anybody had issues with hydrogen embrittlement? I believe that is what Simpson said is a potential problem with Titen's being used in exterior environments. The tension loads that I'm after are on the order of 3-6kips for a 2-anchor solution.
Thanks for your thoughts.
I know that there are expansion-type anchors out there, but I just don't care for that thought when placing into the top of an 8" concrete wall. Does anybody have any other products that they use that are quick to install, can handle exterior environments, and are good long-term solutions? Should I be convinced that expansion-type anchors are acceptable? Has anybody had issues with hydrogen embrittlement? I believe that is what Simpson said is a potential problem with Titen's being used in exterior environments. The tension loads that I'm after are on the order of 3-6kips for a 2-anchor solution.
Thanks for your thoughts.






RE: Titen concrete anchors
http://www.itwredhead.com/pdfs/RH_pdfs/62-66_LDT.p...
are rated for exterior use if the envirex coating is specified. They might also come in stainless steel.
If you have an edge distance problem with the wedge anchors on top of the wall, epoxy or the redheads listed above may be your only alternative.
RE: Titen concrete anchors
One other question..............when it comes to "developing" the tension values in unreinforced concrete.............is that what the tension values that the manufacturers specify are based on? With concrete cover and such I guess it would be pretty hard to get any overlap of anchor / rebar. So am I correct in assuming that if I meet my edge distance minimums (or take the appropriate reductions) that the tension loads in concrete are for unreinforced concrete?
Thanks again!
RE: Titen concrete anchors
http://www.icc-es.org/Reports/pdf_files/ESR-3027.p...
RE: Titen concrete anchors
When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.
-R. Buckminster Fuller
RE: Titen concrete anchors
The ICC report I link to for the KWIK-HUS states "5.15 Use of carbon steel anchors is limited to dry, interior locations." Which implies that the stainless steel anchor is acceptable for exterior use.
PostFrame - a call to your local Redhead or Hilti rep might be worth the time. I've always had prompt and informative replies from the Hilti crew.
RE: Titen concrete anchors
RE: Titen concrete anchors
"5.14 Anchors have been evaluated for reliability against brittle failure and found to be not significantly sensitive to stress-induced hydrogen embrittlement"
I don't know if this relates to manstrom's concerns about the exterior use.
RE: Titen concrete anchors
RE: Titen concrete anchors
https://www.hilti.com.au/anchor-systems/screw-anch...
RE: Titen concrete anchors
RE: Titen concrete anchors
RE: Titen concrete anchors
Please remember: we're not all guys!
RE: Titen concrete anchors
I don't have my powers book here in front of me, but it seems like it was okay for exterior use.