In my model the check value in the reactions case is greater than zero - i.e. the sum of the forces is greater than the sum of the reactions by around 7800kN (out of a total sum of forces of 72600kN). i am also getting horizontal reactions with no horizontal forces applied which don't sum to zero, and huge moments about pinned supports.
I am getting some nodal instabilities as pre-analysis warnings which shouldn't be unstable - all have at least one point of fixity. I also had a couple of nodal instabilities at pinned supports, where i have now used fixed supports to get rid of the instability.
I can't attach the model file as it is too large - is there another place that i can upload it adn link to?
Solved! Go to Solution.
1. Do not use kinematic links.
2. Use recommended meshing parameters and correct meshes
Take a look at message 3 in this thread:
After correcting coherence of meshes I think you should remove releases from columns 952 1424 or define them properly not producing instabilities in model
COrrected model: http://wtrns.fr/ospazeccgHWsNg
Thank you so much for looking at this - I will have a check through the model ASAP - i'm off on holiday at the end of today, but will try and have a look before i go, otherwise i will have a look when i get back.