SIF's Branch

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GeertWouters
Beiträge: 4
Registriert: Fr 14. Okt 2016, 14:08

SIF's Branch

Beitrag von GeertWouters »

Dear ROHR2 Support,

I would kindly ask for information, please find attached results of simulation.
I have a branch connection with a DN200, Wt 4.5mm and a reinforcement at the branch of 8mm (Wt)
The header is DN250, Wt = 4.5mm. From the EN13480 instructions, I choose for a TAV (Branch Connection)
When I checked the stress in the branch connection, they are very high because the SIF is very high. (SIF= 21.91)

Why do I use this option from the specification?

Best regards,
Geert
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rohr2admin
Administrator
Beiträge: 631
Registriert: Di 13. Sep 2011, 14:03

Re: SIF's Branch

Beitrag von rohr2admin »

Hi,

in table H2 of the EN13480-3 you can see, that the component has several shape conditions, which in your case are not met:,
tav-conditions.JPG
So for your branch you acutally can't use the component TAV. The SIF factor for the branch will be smaler (8,66), if you simply use the TTU component.

Best regards,
ROHR2support
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