Corrosion Protection for Post-installed Anchorage of Temporary Structures to Concrete
Corrosion Protection for Post-installed Anchorage of Temporary Structures to Concrete
(OP)
What level of corrosion protection is required for anchorage of temporary structures (2-3 year service life) to concrete?
I'm designing anchorage of an exterior personnel hoist for a high rise to a concrete pad footing using post-installed anchors. The service lifetime will likely be on the order of 2-3 years. In terms of strength, the Hilti HSL-3 looks like an ideal anchor as it is rated for support of heavy-duty dynamic loading, but in terms of corrosion protection is recommended for indoor dry applications only. I could require regular inspection of the anchors on the drawings, but the actual anchor sleeve itself is most likely to corrode and will not be visible. Not to mention that a requirement on the drawings does not guarantee that it will be implemented by the workers.
Alternatively, I could spec a stainless steel Simpson Titen HD, but I'm not sure how great they are for dynamic loading.
Opinions are appreciated!!
I'm designing anchorage of an exterior personnel hoist for a high rise to a concrete pad footing using post-installed anchors. The service lifetime will likely be on the order of 2-3 years. In terms of strength, the Hilti HSL-3 looks like an ideal anchor as it is rated for support of heavy-duty dynamic loading, but in terms of corrosion protection is recommended for indoor dry applications only. I could require regular inspection of the anchors on the drawings, but the actual anchor sleeve itself is most likely to corrode and will not be visible. Not to mention that a requirement on the drawings does not guarantee that it will be implemented by the workers.
Alternatively, I could spec a stainless steel Simpson Titen HD, but I'm not sure how great they are for dynamic loading.
Opinions are appreciated!!






RE: Corrosion Protection for Post-installed Anchorage of Temporary Structures to Concrete
RE: Corrosion Protection for Post-installed Anchorage of Temporary Structures to Concrete
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: Corrosion Protection for Post-installed Anchorage of Temporary Structures to Concrete
Juston Fluckey, SE, PE, AWS CWI
Engineering Consultant
RE: Corrosion Protection for Post-installed Anchorage of Temporary Structures to Concrete
Hokie - yes, the hoist mast ties will be anchored to the building at 30 ft max along entire mast height. The demands on the pad anchorage are primarily only during install, where the mast will be temporarily free-standing.