.. _V6.03.106: **v6.03.106** SNNP106 — Calculation of the reinforcement of a sail girder with a hopper by the Tie rods method =========================================================================================================== **Summary** This non-regression test case makes it possible to validate the construction and optimization of a Bielles-Tirants model via the macro command CALC_BT [:ref:`R7.04.06 `]. The Bielles-Tirants model is built from the results of plane modeling. Two optimization schemes were tested: optimizing the sections of the elements and optimizing the sections of the elements with topological optimization. .. toctree:: :hidden: self .. toctree:: :maxdepth: 2 :numbered: Probl_me_de_r_f_rence Mod_lisation_A___C_PLAN_ Mod_lisation_B___D_PLAN_ Synth_se_des_r_sultats R_f_rences