.. _V6.02.134: **v6.02.134** SSNL134 - Elasto-plastic ruin of Lee's portico ================================================================= **Summary** The purpose of this test is to simultaneously validate the non-linear material and geometric possibilities of the multi-fiber beam element POU_D_TGM. The element is implemented on a test case commonly treated in the literature with regard to elastic behavior because it has a complex response with *snap-back* and *snap-through*: it is Lee's portal. Here, an elasto-plastic behavior of the gantry is assumed, which makes it possible to test the good integration of the law of behavior of multi-fiber elements but also the correct treatment of large displacements. The results obtained are compared with results from the literature as well as non-regression tests. .. toctree:: :hidden: self .. toctree:: :maxdepth: 2 :numbered: Probl_me_de_r_f_rence Solution_de_r_f_rence Mod_lisation_A Synth_se_des_r_sultats