Syntax
=====
               

.. code-block:: text

    multi_elas = COMBINAISON_FERRAILLAGE (
        ◆ reuse = <objet de RESULTAT >,
        ◆ CARA_ELEM = cara_elem,
        ◆ RESULTAT = multiple,
        ◆ COMBINAISON = _F (
             ◆ TYPE =/"ELS_CARACTERISTIQUE ",
                      /"ELS_QUASIPERMANENT ",
                      /"ELU_ACCIDENTEL ",
                      /"ELU_FONDAMENTAL ",
             ◆/NOM_CAS = text,
               /NUME_ORDRE = int,
          ),
        ◇ CODIFICATION =/"BAEL91 ",
                         /"EC2" (by default),
        ◇ METHODE_2D =/"CAPRA - MAURY" (by default),
                       /"SANDWICH ",
        ◇ PAS_THETA = float (default: 5),
        ◇ PAS_EPAI = float (default: 0.01),
        ◇ PAS_SIGM = float (default: 0.1),
        ◇ COND_109 =/"NON ",
                     /"OUI" (by default),
        ◆ UNITE_CONTRAINTE =/"MPa ",
                             /"Pa",
        ◆ UNITE_DIMENSION =/"m",
                            /"mm",
        # If: equal_to (" CODIFICATION ", 'EC2')
            ◆ AFFE = _F (
                 ◆/TOUT = "OUI" (or not specified),
                   /GROUP_MA = grma,
                 ◆ TYPE_STRUCTURE =/"1D",
                                    /"2D",
                 ◇ FERR_SYME =/"NON" (by default),
                               /"OUI ",
                 ◇ SEUIL_SYME = float,
                 ◇ FERR_COMP =/"NON" (by default),
                               /"OUI ",
                 ◇ EPURE_CISA =/"NON" (by default),
                                /"OUI ",
                 ◇ FERR_MIN =/"CODE ",
                              /"NON" (by default),
                              /"OUI ",
                 ◇ RHO_LONGI_MIN = float,
                 ◇ RHO_TRNSV_MIN = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '2D')
                     ◆ C_ INF = float,
                     ◆ C_ SUP = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '1D')
                     ◆ C_ INF_Y = float,
                     ◆ C_ SUP_Y = float,
                     ◆ C_ INF_Z = float,
                     ◆ C_ SUP_Z = float,
                 ◇ ALPHA_E = float,
                 ◇ RHO_ACIER = float (default: -1),
                 ◇ FYK = float,
                 ◇ EYS = float,
                 ◇ TYPE_DIAGRAMME =/"B1",
                                    /"B2" (by default),
                 ◇ GAMMA_S_FOND = float,
                 ◇ GAMMA_S_ACCI = float,
                 ◇ FCK = float,
                 ◇ GAMMA_C_FOND = float,
                 ◇ GAMMA_C_ACCI = float,
                 ◇ ALPHA_CC = float (default: 1.0),
                 ◇ SIGS_ELS = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '2D')
                     ◇ SIGC_INF_ELS = float,
                     ◇ SIGC_SUP_ELS = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '1D')
                     ◇ SIGC_INF_Y_ELS = float,
                     ◇ SIGC_SUP_Y_ELS = float,
                     ◇ SIGC_INF_Z_ELS = float,
                     ◇ SIGC_SUP_Z_ELS = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '2D')
                     ◇ WMAX_INF = float,
                     ◇ WMAX_SUP = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '1D')
                     ◇ WMAX_INF_Y = float,
                     ◇ WMAX_SUP_Y = float,
                     ◇ WMAX_INF_Z = float,
                     ◇ WMAX_SUP_Z = float,
                 ◇ SIGC_ELS_QP = float,
                 ◇ KT = float,
                 ◇ PHI_INF_X = float,
                 ◇ PHI_SUP_X = float,
                 ◇ PHI_INF_Y = float,
                 ◇ PHI_SUP_Y = float,
                 ◇ PHI_INF_Z = float,
                 ◇ PHI_SUP_Z = float,
                 ◇ UTIL_COMPR =/"NON" (by default),
                                /"OUI ",
                 ◇ CLASSE_ACIER =/"A",
                                  /"B" (by default),
                                  /"C",
                 # If: greater_than (" RHO_ACIER ", 0)
                     ◇ ALPHA_REINF = float (default: 1),
                     ◇ ALPHA_SHEAR = float (default: 1),
                     ◇ ALPHA_STIRRUPS = float (default: 1),
                     ◇ RHO_CRIT = float (default: 150),
                     ◇ DNSTRA_CRIT = float (default: 0.006),
                     ◇ L_ CRIT = float (default: 1),
              ),
        # If: equal_to (" CODIFICATION ", 'BAEL91')
            ◆ AFFE = _F (
                 ◆/TOUT = "OUI" (or not specified),
                   /GROUP_MA = grma,
                 ◆ TYPE_STRUCTURE =/"1D",
                                    /"2D",
                 ◇ FERR_SYME =/"NON" (by default),
                               /"OUI ",
                 ◇ SEUIL_SYME = float,
                 ◇ FERR_COMP =/"NON" (by default),
                               /"OUI ",
                 ◇ EPURE_CISA =/"NON" (by default),
                                /"OUI ",
                 ◇ FERR_MIN =/"CODE ",
                              /"NON" (by default),
                              /"OUI ",
                 ◇ RHO_LONGI_MIN = float,
                 ◇ RHO_TRNSV_MIN = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '2D')
                     ◆ C_ INF = float,
                     ◆ C_ SUP = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '1D')
                     ◆ C_ INF_Y = float,
                     ◆ C_ SUP_Y = float,
                     ◆ C_ INF_Z = float,
                     ◆ C_ SUP_Z = float,
                 ◇ N = float,
                 ◇ RHO_ACIER = float (default: -1),
                 ◇ FE = float,
                 ◇ EYS = float,
                 ◇ TYPE_DIAGRAMME =/"B1",
                                    /"B2",
                 ◇ GAMMA_S = float,
                 ◇ FCJ = float,
                 ◇ GAMMA_C = float,
                 ◇ ALPHA_CC = float (default: 0.85),
                 ◇ SIGS_ELS = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '2D')
                     ◇ SIGC_INF_ELS = float,
                     ◇ SIGC_SUP_ELS = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '1D')
                     ◇ SIGC_INF_Y_ELS = float,
                     ◇ SIGC_SUP_Y_ELS = float,
                     ◇ SIGC_INF_Z_ELS = float,
                     ◇ SIGC_SUP_Z_ELS = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '2D')
                     ◇ WMAX_INF = float,
                     ◇ WMAX_SUP = float,
                 # If: equal_to (" TYPE_STRUCTURE ", '1D')
                     ◇ WMAX_INF_Y = float,
                     ◇ WMAX_SUP_Y = float,
                     ◇ WMAX_INF_Z = float,
                     ◇ WMAX_SUP_Z = float,
                 ◇ SIGC_ELS_QP = float,
                 ◇ KT = float,
                 ◇ PHI_INF_X = float,
                 ◇ PHI_SUP_X = float,
                 ◇ PHI_INF_Y = float,
                 ◇ PHI_SUP_Y = float,
                 ◇ PHI_INF_Z = float,
                 ◇ PHI_SUP_Z = float,
                 # If: greater_than (" RHO_ACIER ", 0)
                     ◇ ALPHA_REINF = float (default: 1),
                     ◇ ALPHA_SHEAR = float (default: 1),
                     ◇ ALPHA_STIRRUPS = float (default: 1),
                     ◇ RHO_CRIT = float (default: 150),
                     ◇ DNSTRA_CRIT = float (default: 0.006),
                     ◇ L_ CRIT = float (default: 1),
              ),
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices