La compression simple des poteaux isolés beton arme PDF

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La compression simple des poteaux isolés beton arme PDF

Une partie du livre
Compression centrée :
Pour avoir une compression centrée il vérifier les conditions suivantes :
- Il faut que le centre de gravité (CDG) soit centré.
-Il faut que la force soit appliquée dans le noyau central.

-Cas des poteaux isolés :
-Cas des poteaux dans des bâtiments à étages multiples :
Lf = 0,7 . L0 : si le poteau est encastré dans un massif de fondation ou bien assemblé à des poutres de plancher ayant au moins la même raideur (E.I) dans le sens de flambement..
- ou dans le cas de poteaux d'étages multiples.

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Mots-clés : La compression simple des poteaux isolés beton arme PDF, Compression centrée, Définition du noyau central, Longueur de flambement et élancement, La longueur de flambement (Lf), L'élancement de λ, Définition du rayon de giration, Etat limite de service (E.L.S), Etat limite Ultime (E.L.U), Détermination des armatures, Armatures longitudinales , Pourcentage d'armatures minimum, Pourcentage d'armatures maximum, Armatures transversales, Dispositions constructives, Prédimensionnement des poteaux, Application

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