Issue 39

V. Salajka et alii, Frattura ed Integrità Strutturale, 39 (2017) 88-99; DOI: 10.3221/IGF-ESIS.39.10 91 Specification: L1 (L12112/4/3) Specification: S2 (L12112/4/4) Lv4 Lv3 Lv1 Lv2 L1 Fh 90 (208) 395 (245) 110 (210) 375 (245) 250 (19) L2 L1 770 Fh Fv4 590 590 (50) 1380 2000 2506 (2561) 2507 (2560) E1 (baza 3125) E2 (baza 3122) 2745 2742 Lv4 Lv3 Lv1 Lv2 L1 Fh 108 (230) 194 (245) 88 (230) 183 (250) 276 (18) L2 L1 770 Fh Fv4 590 590 (62) 900 2000 1505 (1568) 1505 (1555) E1 baza 2570 mm E2 baza 2570 mm 2746 2747 Figure 4: Diagrams of walls “L” and “S”. Time [s] Time [s] Figure 5 : Idealized and real imposed lateral displacement time history. Wall models In accordance with the data, numerical models of the walls were created using the finite element method (FEM). Only the fundamental difference in the geometry, that is the difference in the length of the walls, was taken into consideration while modelling by the FEM model. On the basis of this consideration, two computational models were only created: One for the analysis of the long “L” walls and the second one to analyze the short “S” walls. The calculations also differ by vertical preload and excitation functions. The vertical preload values (including the girder and the concrete block) are considered for each model as follows: L1 - 1/3 f cd - vertical preload 807 kN, L2 - 2/3 f cd - vertical preload 1613 kN, S1 - 1/3 f cd - vertical preload 484 kN, S2 - 2/3 f cd - vertical preload 968 kN. On the basis of the data, see the diagrams in Fig. 4, models of long “L” on the left and short “S” walls on the right side including underlay and delivering elements over the walls were created in the ANSYS software. Considering the symmetry of realized complementary structures and walls to the vertical plane in the longitudinal direction and the manner of loading, the computational models were created using this symmetry (the x - z plane). The graphic representation is including the mirrored part of the model. The computational models are mainly created from the 3-D finite elements of the SOLID45 type, see (fig. 7). They are the blocks, the mortar, the concrete base beam, the concrete beam and the main steel girders and two additional beams directly under the pressure cylinders at the “S” type walls (Fig. 8). The concrete base beam of the dimensions