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ANCHORS FOR USE SEISMIC TENSION TYPE D.3.3.4

Posted by Luisa Talónabout 3 years ago
ANCHORS FOR USE SEISMIC TENSION TYPE D.3.3.4

When calculating an anchored baseplate for a platform structure, we are under ACI-318 D.3.3.4 type assumption (ductile anchors with the highest % utilization). Can we use Hilti anchors HAS size 3/4" Grade 105? if not, wich Hilti anchor is the maximum strength we can choose under this type D.3.3.4 assumption?
On the other hand, results for D.3.3.4 are simmilar than for D.3.3.6 factor nonductile=1 results; is the same calculation?
Regards.

DUCTILE ANCHORS,GRADE 105

1 Reply
Posted by Danielle Filerabout 3 years ago
Hilti Verified

Hi Luisa,

If D 3.3.4.3 (a) is selected, PROFIS Engineering will filter out all anchor elements considered to be non-ductile. D 3.3.4.3 (a) is satisfied when the criteria in subsections 1 and 2 are met, and the Design Steel Strength of a ductile anchor element has the highest % utilization. It is the responsibility of the user to verify if the criteria in subsections 3-6 are met.
The HAS-B 105 grade is the strongest grade of threaded rod Hilti offers.

Regards,
Dani

non-ductile,seismic provision,D 3.3.4.3