2. Modeling#

2.1. TP implementation#

2.1.1. Creation of meshes#

  • Beam mesh (15 to 20 elements).

  • Meshing the right section of the beam (20 to 25 elements in the height, 2 to 5 elements in the width).

2.1.2. Definition of fibers#

  • Use the DEFI_GEOM_FIBRE [U4.26.01] command to define the multi-fiber cross section of the beam.

  • Visualization of the fiber section with CREA_MAILLAGE [U4.23.02].

2.1.3. Definition of materials#

Define materials using command DEFI_MATER_GC [U4.42.07].

2.1.4. Data checks#

Visualize the right section of the multifiber beam with local landmarks.

_images/1000000000000438000002CEE0D8BBE43DA9662C.png

2.1.5. Calculus#

Conduct the calculation as far as possible.

2.1.6. Post-treatments#

Support reaction according to the arrow in the center

Changes in deformations:

  • Deformations of stretched and compressed concrete.

  • Deformations of tense and compressed steels.

Changes in constraints:

  • Constraints of stretched and compressed concrete.

  • Stresses of stretched and compressed steels.

_images/10000201000008BB000006566A73BAF71FB2D8BE.png

Figure 2.1.6-a :Changes in stresses in steels as a function of time.

_images/10000201000008BA0000065692F23E8B018FED30.png

Figure 2.1.6-b :: ** Changes in stresses in concrete as a function of time.

_images/1000020100000AEA000007ED05469F9505500085.png

Figure 2.1.6-c : Changes in stresses in concrete as a function of deformations.

_images/10000201000008BB000006561AC98389E9B5711D.png

Figure 2.1.6-d :: ** Changes in the support reaction as a function of the arrow.