Pour calculer les force sismique prisent par chaque étage du bâtiment ce document Excel est le meilleur.
Remplissez les données marqué en jaune et le calcul s’enchaîne seul pour avoir la résultat final sans faire le calcul a la main.
Catégorie Type de bâtiments φ Ψ2i
Habitation, zone
A Niveau toiture 1 0.3
résidentielle
Etages à
B Bureaux occupations 0.8 0.3
corrélées
Etages à
C Lieux de réunion occupations 0.5 0.6
indépendantes
D Commerces 1 0.6
E Stockage 1 0.8
Zone de trafic
F 1 0.8
véhicules < 30 kN
Zone de trafic
G 1 0.3
véhicules < 160 kN
Neige sur les
- 1 0.2
batiments
Nombre d'etages Categorie d'importance
I
H1 II
H2 III
H3 IV
H4
H5 V=
H6
H7
H8
H9
H10
Htotal= 0 m
masse d'1 etage t
masse totale= t
Etage a occupation independantes φ=
Surcharge Bureaux Ψ2=
Surcharges de toiture Ψ2=
Surface plancher S= m2
ag= m/s²
amortissement
Le: distance entre 2 elements extremes Lex 36
q0
Type de structure Batiment regulier DCM
1 etage
Systeme ossature 3* (αu/α1) 1 travées, plusieurs etages
plusieurs travées et etages
Systeme a murs
3* (αu/α1)
couplées
, Systeme ossature
3* (αu/α1)
mixte
Systeme a murs non
couplées
Systeme a noyau
Systeme a pendule
inversé
Batiment irregulier en elevation, diminution de 0.8
Batiment irregulier en plan, αu/α1 = 1
q0 =
Kw suivant x
Type de structure 0.5<Kw<1
Systeme ossature 1
Systeme a ∑ H mur 0
contreventement (1+α0)/3
murs et noyau ∑ L mur 0
Kwx =
Kw suivant y
Type de structure 0.5<Kw<1
Systeme ossature 1
Systeme a ∑ H mur 0
contreventement (1+α0)/3
murs et noyau ∑ L mur 0
Kwy =
qx = q0 . Kw ≥ 1.5 0 1.5
qy = q0 . Kw ≥ 1.5 0 1.5
, 3- Periode fondamentale T1= Ct.H¾
Type de contreventement Ct T1
Portiques spatiaux en acier 0.085 0
Portiques spatiaux en béton 0.075 0
Autres structures 0.05 0
Selon Y C t= 0.075/√Ac =
T1= Ct.H¾ =
3- ACCELERATION SPECTRALE HORIZONTAL Sd (T)
ag= 0 m/s²
qx= 1.5 qy 1.5
T1x= #DIV/0! T1y= #DIV/0!
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