Règles de conception et de calcul des structures en béton armé C[1].B.A.93

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MINISTERE DE L'HABITAT

DOCUMENT TECHNIQ\JE REGLEMENTAIRED.T.R. - B.C. 2-41

REGLES DE CONCEPTION ET DE CALCULDES STRUCTURES EN BETON ARME

C.B.A.93

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ii\ MINISTERE DE L'HABITAT

1 DOCUMENT TECHNIQUE REGLEMENTAIRE( D.T.R. - B.C. 2-41

11 1

REGLES DE CONCEPTION ET DE CALCULDES STRUCTURES EN BETON ARME

, C.B.A.93

,1 CENTRE NATIONAL DE RECHERCHE APPLIQUEE

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1 BOUKEN DJAKDJI Mustapha Enseignant à l'Université de Blida

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MM TALBI Akli - Maitre de recherche CGSREMAS Abdelkadel' - ChaI'gé de reche!'che CGS

III

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,

PREMIERE PARTIE

REGLES GENERALES

.

1

1

1

1

\

1\

CHAPITRE - A 1 -

PRINCIPES ET DEFINITIONS

ARTICLE - A 1 - DOMAINE D 1APPLIC ATION

Les présentes régles de calculs sont applicables à tous lesouvrages et constructions en béton armé, soumis à des ambiancess'écartant peu des seules influences climatiques, et dont le bétonest constitué de granulats naturels normaux, avec un dosage enciment au moins égal à 300 kg par m3 de béton mis en oeuvre. -

Sont considérées en béton armé les pièces qui sont encoreaptes à jouer leur rôle dans la structure dont elles font partie,lorsque la résistance à la traction par fléxion de leur bétonconstitutif est supposée nulle.

Restent en dehors du domaine des présentes régles :- les constructions en béton non armé,- les constructions en béton constitué de granulats légers,- les constructions en béton caverneux ou cellulaire mixtes acier-

béton,- les éléments soumis en service à des températures s'écartant

sensiblement de celles qui résultent des seules influencesclimatiques.

D'autre part certains ouvrages peuvent faire l'objet de réglesparticulières auxquelles il est alors fait référence.

3

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0(D (') ~ V> V> ~ ~ (D ~ l:: ~. ~ (t' __ =:s CTC/ ., ~

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0.. V> 3 (D "-"::l '-' 0.. a~' ....., (D

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V> (D =:s (D '"1 V> V> 1 =:s •..• ~ V> .-. =:s ::+

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OElJXIEME PARTIE

RÉGLES APPLICABLES AUX OSSATURES ETÉLÉMENTS COURANTS DES STRUCTURES EN

, BÉTON ARMÉ

CHAPITRE B-l

. INDICATIONS SUR LE CHOIX DES MATERIAUX

B-l-l. INDICATION SUR LE CHOIX DES BETONS ENFONCTION DES RESISTANCES A OBTENIR ETDES CONDITIONS DE FABRICATION

L'article A. 2.1.13 des présentes régIes stipule qu'à défaut deprécédents et d'études préalables, on peut admettre, à priori, pourdes bétons courants, lors de la rédaction des projets, des valeursde la résistance caractéristique à la compression dont la pratiquea montré qu'elles peuvent être normalement atteintes sur leschantiers". Les projets.sont donc établis à partir d'une résistancecaractéristique spécifiée qu'il y a lieu d'obtenir à l'exécution et, austade de leur élaboration, les compositions des bétons ne sontfournies qu'à titre indicatif à moins que l'on ait. effectué desétudes préalables complètes ou que l'on -dispose soit deréférences précises, soit de garanties comme c'est le cas pour lesbétons prêts à l'emploi à caractéristiques normalisées (B.eN.)soumis à un auto-contrôle surveillé.

Le tableau ci-après indique, à la date d'approbation du présenttexte, les dosages en kg/rn! permettant d'obtenir dans la grandemajorité des cas les résistances caractéristiques dont lanormalisation est en cours. Les indications correspondent à desbétons présentant un affaissement de l'ordre de 10 cm à l'essainormalisé.

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Pholooomposilion el ImpressionIUPRlÛERIE SARm

3. rue Mohamed SMOOUN· El-lllAR (Alger)(Année 1994)

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Règles de conception et de calcul des structures en béton armé C[1].B.A.93