If all assigned to WL, they will stack when moved to FDN and you cannot add them discretely to combinations. They must be assigned to Load Categories in order to move over to FDN. In the Basic Load Cases, there will are 9 loads (DL and the 8 wind loads) Make the load categories DL and OL1-OL8. Solve tnx with custom wind direction of 0 thru 150° including the 45° angles (8 segments) So here is the somewhat ham-fisted approach to getting loads from tnxTower into RISA Foundation (FDN). RE: Loads/Reactions from tnxTower to RISA Foundation azcats (Structural) However, it is probably very important for towers with guys / cables. Not so important for monopoles, or relative short SST's. These may require an analysis with a more advanced second order solver. However, TnxTower tends to have very tall, slender towers. RISA, in general, does a pretty good job with P-Delta effects of frames and building structures. The more important the 2nd order effects are, the less likely the RISA-3D reactions are going to match the more accurate reactions you get from TnxTower. There are some technical drawbacks associated with this. I think RISA may allow you to save RT3 files now as regular RISA files. If you can save it out as a regular RISA-3D file, then you should be able to bring it over to RISAFoundation. The RT3 file is really just a binary version of RISA's regular input text file. Initially it comes in as an *.rt3 file (at least that's what used to happen). You can export the TnxTower model into RISA-3D. Now, just because there isn't a direct link between the two programs doesn't mean you can't make something work. He's just really opinionated about what works best for him and for his program. In that person's defense, Peter can, at times, be difficult to get along with. There is someone at RISA that (this is purely my opinion) doesn't like Peter / TnxTower and is a little petty / vengeful about it. My guess is that there will never be one.
There isn't any DIRECT interaction between TnxTower and RISAFoundation. Let's see if I can respond in a way that is true, but doesn't open me up to a lawsuit.
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