Modeling A
==============


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.


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


.. image:: images/10000201000002AE000001F72F2D8150726F368F.tif
    :width: 3.5457in
    :height: 2.0154in


.. _RefImage_10000201000002AE000001F72F2D8150726F368F.tif:

X

Y

Z


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.


.. csv-table::

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