Autodesk Robot Structural Analysis

[#1]

svp comment moduler le contrev pour une charpente en 3d
les cornieres doivent étre dimentionné pour la traction le pb quand j imposse des treis en traction uniquement toute les combinaisons de charge s 'annule du progremme !

[#2 · Accepted solution]

Automatic code combinations can only be generated for linear static analysis as they are based on results of the previously calculated simple load cases. For non linear analysis you have two options:

1. Before you change the analysis type to non linear (or define tension only elements) you should generate automatic code combinations and then convert them into manual combinations. The option is available from the combination table as illustrated below:

2. Instead of generating automatic code combinations you can generate manual combinations in the automatic way. All you have to do is select manual combinations generation in the dialog shown below:

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[#3]

Merci pour votre réponse

mais quand je lance le calcul le programme me recommande d utiliser l algorithme DSC quand je j active cet aligortime il ya un probleme avec l'excentrement 

est ce je dois annuler l'excentrement ? est si je le fais quelle est linfluence sur le calcul

      merci

[#4]

The DSC releases cannot be defined on bars with offsets as this produces incorrect results. In such case you have to switch the use of DSC off or replace offsets with e.g. rigid links or dummy bars.

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.