3. Modeling A

3.1. Characteristics of modeling

The volume of concrete is modelled by a single hexahedral element. The prestress cable is modelled first by 4 elements BARRE, then by 4 elements CABLE_GAINE.

3.2. Characteristics of the mesh

With the cable modelled in BARRE: 4 mesh SEG2, one mesh HEXA8

With the cable modelled in CABLE_GAINE: 4 mesh SEG3, one mesh HEXA8

X

Y

Z

3.3. Test values and modeling results A

The calculations are done a first time with modeling BARRE and a second time with modeling CABLE_GAINE using the adherent case of law CABLE_GAINE_FROT.

The values tested are the same in both cases.

Identification	Reference Type	Reference	Tolerance
Next gravity \(–z\)	“ANALYTIQUE”	132	\({10}^{\text{-8}}\text{\%}\)
Next gravity \(–x\)	“ANALYTIQUE”	132	\({10}^{\text{-8}}\text{\%}\)
Stress in concrete SIXX	“ANALYTIQUE”	\(\mathrm{-}\mathrm{1,66666667}{10}^{5}\)	\(\mathrm{0,1}\text{\%}\)
Normal stress in steel N	“ANALYTIQUE”	\(2{10}^{5}\)	\(\mathrm{0,1}\text{\%}\)
Deformation in concrete: EPXX	“ANALYTIQUE”	\(-\mathrm{5,555555555}{10}^{\text{-4}}\)	\(\mathrm{0,001}\text{\%}\)