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17/06/2025 11:53 am
Can anyone enlighten me on what a TAC20 physically is?
So far I know it’s a proprietary product cast into a wall panel to connect hollowcore floors and/or topping slabs.
Attached is the sort of detail I have, and that’s about all I can find on google too.
The building I’m assessing already has seating retrofitted, so primarily I need to know if these things provide any additional capacity to transfer diaphragm loads into the wall.
18/06/2025 11:52 am
My understanding is that they were covered by NZ Patent 264597 Floor to wall tie method of construction.
If you put that number in as the ‘Case Number’ at NZ patent search then you should find a couple of pdfs that describe the concept a bit.
As far as I know there hasn’t been any specific testing on what they do as a diaphragm load path.
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