I personally have never designed tie beams connecting the footings in the plane of frame as obviously spans are so large.
If the foundation depth is not much, you should think of connecting the pedestal top and ground slab with the 'U' pin. That will also resist the lateral force transferred...
I have read all the messages above.
I think one should try STRAP, as i am also doing this kind of survey to pick up the best among available software and i think STRAP is impressive.
As an alternative one should also try PROKON. it is limited in abilities but very handy to use.
