My questions are not so much with HDUs. I have used these hold-downs before...the question is more regarding the fact that the IRC specifically calls for a strap-type hold-down embedded into the concrete. I have attached a copy of APA's response to my question which is along the lines what I was...
Figure R602.10.6.2 details APA's Portal Frame with hold-downs and calls for (2)4200 lb strap-type hold-downs (embedded into concrete and nailed into framing). I have always interpreted this to mean that a embedded strap, like a Simpson STHD14, is required. I had a builder misplace some STHD...
With the transition to the 2009 code, the ICC refers the engineer to NDS SDPWS for design of shear walls. I had a question about one section in particular. In the 2006 IBC, 2305.3.8.2.4 refers to a "minimum tension chord uplift force, T". The ICC instructs the engineer to provide anchorage...