Bonjour,
je dois calculer mon batiment suivant PS92 et BAEL 99; les hypotheses sismiqe sont :
Zone de sismicité 2 : faible
Categorie de l'etablissement C
Type de sol : C
le calcul statique se deroule bien, mais parcontre pour le calcul dynamique ( sismique) j'ai un probleme d'execution ( voir la photo ci jointe Pouvez vous m'aider ?
Je joins également le fichier calcul ci dessous :
Solved! Go to Solution.
Solved by FabriceMendelski3705. Go to Solution.
Solved by Rafal.Gaweda. Go to Solution.
You can not neglect instabilities type 1 or 2 in model.
Soething wrong with linear releases as I wrote you before.
Still checking.
Find node with instability (node numbers reported) then look at panels \ panels edges near this \ these nodes....
mais d'où viennent ces instabilités ? en d'autres mots comment faire pour les régler je ne trouve pas l'origine.
http://forums.autodesk.com/t5/Autodesk-Robot-Structural/API-macro-for-highlighting-nodes-with-instab... - attachment from message 24 or 25 ; set correct path to robwin.log file
To correct instability in node 797 change releaases as shown below:
Some of instabilities can be reported in calculation nodes
Example how to find them -> the real node numbers
It seem that intabilities are reported in corner nodes where linear releses with different dof meet.
Correrction of instability in node 22390 :
j'arrive a trouver les noeuds associées mais parcontre cela ne me permet pas de retrouver le noeud dans le model et de corriger l'instabilité sur les noeuds : 22877; 22878 ;22390 23668 ; 23730; 1093; 797
Corrected file attached.
Neglect remaining instability - it is mathematical instability (reported as type 3 in 2013 version)