3. B modeling#

3.1. Characteristics of modeling#

Same as modeling A

3.2. Loads#

An initial voltage is imposed on the cable with a value of \(\mathrm{2,0E5}N\).

3.3. Test steps#

After defining the model, materials, and loads, the macro command DEFI_CABLE_BP is used to obtain the kinematic relationships between the plate and the cable and to determine the initial tension in each cable element. The RELAXATION keyword is not entered, so all cable elements have a voltage of \(\mathrm{2,0E5}N\).

The macro command CALC_PRECONT is used to tension the concrete using the cable_precont concept from DEFI_CABLE_BP.

The result from macro-command CALC_PRECONT is then given as the initial state to CALC_EUROPLEXUS. Displacements and constraints (CONTRAINTE =” OUI “) are transmitted to Europlexus. No additional load is given, the aim being to check the balance of the system. That’s why we don’t force balance in Europlexus (EQUILIBRE = “NON”).

After several steps of time, we check that the movements and the constraints have not changed.

3.4. Tested values#

Results from CALC_PRECONT:

Node

Field

Inst.

Comp.

Reference Value

Reference

Tolerance

NB002002

FORC_NODA

\(\mathrm{1,0}\)

\(\mathit{DY}\)

\(1.30712E-01\)

SOURCE_EXTERNE

\(\mathrm{1,0E-5}\)

NC001004

FORC_NODA

\(\mathrm{1,0}\)

\(\mathit{DY}\)

\(-2.00000E+05\)

SOURCE_EXTERNE

\(\mathrm{1,0E-5}\)

Results from CALC_EUROPLEXUS :( Analytical references)

Node

Instant

Component

Reference Value

Tolerance

NB001002

\(\mathrm{1,0}\)

\(\mathit{DX}\)

\(-0.000106115467427\)

\(\mathrm{1,0E-6}\)

NC001004

\(\mathrm{1,0}\)

\(\mathit{DX}\)

\(-7.95866005703E-05\)

\(1.0E-4\)

Mesh

Point

Instant

Instant

Component

Reference Value

Tolerance

SG001001

1

\(\mathrm{1,0}\)

\(N\)

\(2.0E+05\)

\(\mathrm{1,0E-6}\)

TR001001

1

\(\mathrm{1,0}\)

\(\mathit{NYY}\)

\(30081.6876841\)

\(\mathrm{1,0E-6}\)

QD001001

4

\(\mathrm{1,0}\)

\(\mathit{NYY}\)

\(-24501.4600173\)

\(3.0E-5\)