Bonjour tout le monde,
Pourrai-je calculer avec robot un radier d'épaisseur 70cm,avec des poteaux en dessus? et vérifier le poinçonnement?? en faite, j'ai essayé, et j'ai trouvé que sans poutres, il ya une vérification vis à vis le poinçonnement, et en ajoutant les poutres, robot ne donne plus rien.
Peut être il ya une mauvaise manipulation ??
Merci à celui qui peut m'aider
Robot is not capable of running verification of punching the locations of beams. The possible solution is to replace the parts of the beams close to the columns with rigid links as shown on the attached pictures.
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In the case you have foundation beams, shear resistance is provited by the beams and not the slab. You need to check shear resistance of the beams.
As the original message has been in French there is a chance that I misunderstand your original question. My understanding is that you may want to check either:
1. Shear in the panel (slab) along the edges of the beams. In such case currently Robot is not capable of making this verification automatically
or
2. Shear in the beams themselves - in such case the verification can be done after exporting them to the RC Beam design module.
Hope this helps.
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Et pour Artur: pourquoi dois-je introduire une liaison rigide, puisque les poteaux avec les poutres c bien des encastrements et c rigide?
First of all I do apologize if I misunderstood your original question as I have to relay on some translating tool to read it.
My assumption was that you wanted to check punching under the columns. As Robot is capable of doing this only when a column is directly connected with the panel (no beams attached to the column at the panel 'connection' node) I replaced the parts of the beams close to columns with rigid links. I created the rigid links from the column to the first nodes of the mesh generated along the beams and decided to have these nodes being relatively far from the column to have the chance to illustrate this approach on the picture but of course you can cerate these nodes at the column faces so that the rigid links 'replace' only the overlapping part of beams and column connection which is rigid anyway.
Hope this helps.
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en premier temps, j'ai compris votre idée, sauf que le point qui me reste flou est le suivant :
Si je modélise une plaque avec des poteaux en dessus,et que j'exporte le radier vers le module de ferraillage, je trouve les poteaux détectés pour calculer le poinçonnement; et qd j'ajoute des poutres, le logiciel ne détecte pas ces surfaces de contact entre les poteaux et le panneau
Y a t il un éclaircissement sur ça??
This is exactly what I'm trying to explain. When you have beams the punching in the panel (slab) is done through these beams and if fact there is no direct influence of the columns (this is what I think con280 tried to explain as well). In such situation Robot is not capable of determining the area of punching in the slab assigned to a particular column as it is influenced by the beams.
As my understanding was that you wanted to run this check as if there was no beams I proposed you the solution with rigid links so that the detection of the critical perimeter is possible.
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j'ai essayé d'introduire des liaisons rigides et j'ai eu le message d'erreur en pièce jointe
Defining a rigid link you first indicate a master node and then slave nodes. In case there is a support defined in a node you can only define the master node there. In other words start definition of a rigid link from the supported node (master node) and connect it with nodes of the mesh (slave nodes).
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en faite, j'ai désigné comme noeud maitre l'origine du poteau qui a coincidé avec un appui, comment faire alors?
Votre poteau est normalement repris par votre radier, donc vous nous devriez pas avoir un appui en pied .
Supprimez alors votre appui en pied de poteau, et refaites votre définition de laison rigide telle que c'est indiqué par Artur dans son premier post.
Hi all,
Dans un radier avec des poutres, il ny a plus de poinçonnement du radier.
Les efforts amenés par les poteaux sont repris par les poutres. Ces poutres sont à vérifier pour reprendre l'effort tranchant (verifier la compression dans les bielles et l'entrainement des armatures).
merci pour l'info, j'essayerai de vérifier les résultats de robot avec un simple calcul manuel pour voir mieux les choses, merci
Robot is not capable of verifying punching for masonry walls.