SSLL13 : poutre sous-tendue

 

a = 2m, b = 4m, l = 8m, c = 0.6m, d = 2.088 m
Poutres AD, DF, FB : aire = 15 160 mm² , Ar = A/2.5 , I = 217.4E6 mm⁴
Poutres AC, DC, CE, FE, EB : A1 = A2 = 4500 mm² , A3 = 3480 mm²
E = 210 000 MPa et G = 0.4 E soit un coefficient de Poisson de 0.25
p = -50 000 N/m (conversion en forces et moments ponctuels)

Raccourcissement au milieu du tirant CE de 6.52mm

 

IDEN JB=2 CD=8 GR=-Y PL=/TEST SSLL13/ AB=T
TITL CV=2 BL=8 TI=/POUTRE SOUS-TENDUE/
LCAS CA=1 TY=0 TI=/RACCOURCISSEMENT/
LCAS CA=3 TY=3 TI=/CHARGE UNIFORME/
CCAS CA=4 ME=0 C1=1 C2=3
MATH UN=1 EX=2 CD=555 TY=9 AL=carbon KL=1 SG=0.25
MATD TE=-10 EH=210. EX=12 SH=300.
MATD TE=21.1 EH=210. EX=15 SH=300.
MATL CD=555
DESN TE=21.1 PR=0.
OPER CA=1 TE=21.1
OPER CA=3 TE=21.1 PR=0
CROS CD=10 OD=10 WT=2 MA=1
ANCH PT=5 MX=0.0001 MY=0.0001 MZ=0.0001 KX=1.E9 KY=1.E9 KZ=1.E9
FORC CA=3 FY=-38.287 PT=5
BEAM PT=10 DX=2 XZ=1. AR=15160. XS=.4 YS=.4 EC=210. IX=217.4E6 IY=1.E11 TO=1.E11
FORC CA=3 FY=-161.713 PT=10
MOMT CA=3 MZ=-43.242 PT=10
BEAM PT=15 DX=2 XZ=1. AR=15160. XS=.4 YS=.4 EC=210. IX=217.4E6 IY=1.E11 TO=1.E11
BEAM PT=20 DX=2 XZ=1. AR=15160. XS=.4 YS=.4 EC=210. IX=217.4E6 IY=1.E11 TO=1.E11
FORC CA=3 FY=-161.713 PT=20
MOMT CA=3 MZ=43.242 PT=20
BEAM PT=30 DX=2 XZ=1. AR=15160. XS=.4 YS=.4 EC=210. IX=217.4E6 IY=1.E11 TO=1.E11
RSTN PT=30 DY=1 SP=1.E9
JUNC PT=5
BEAM PT=40 DX=2 DY=-0.6 XZ=1. AR=4500. EC=210. IX=1. IY=1. TO=1.E11
OPER CA=1 TE=-114.7
BEAM PT=50 DX=4 XZ=1. AR=4500. EC=210. IX=217.4E6 IY=1.E11 TO=1.E11
OPER CA=1 TE=21.1
BEAM PT=30 DX=2 DY=0.6 XZ=1. AR=4500. EC=210. IX=1. IY=1. TO=1.E11
FORC CA=3 FY=-38.287 PT=30
JUNC PT=40
BEAM PT=10 DY=0.6 XZ=1. AR=3480. EC=210. IX=1. IY=1. TO=1.E11
JUNC PT=50
BEAM PT=20 DY=0.6 XZ=1. AR=3480. EC=210. IX=1. IY=1. TO=1.E11
ENDP

 

Point	Grandeur et unité	Valeur AFNOR	Valeur PIPESTRESS
CE	Effort de traction (N)	584 584	584 530
D	vD (mm)	-0.5428	-0.545