Issue 47

A. Namdar et alii, Frattura ed Integrità Strutturale, 47 (2019) 451-458; DOI: 10.3221/IGF-ESIS.47.35 453 frame model, the near-fault ground motion is applied, and the three processes of loading-unloading mechanism have been shown, using cycling graph under ABAQUS environment. The method of merge node for all model including boundary condition, has been adopted in analysis of timber frame, during execute of numerical analysis. Both foundations of frame are characterized by the same geometry and material. Tab. 1, indicates the mechanical properties used in numerical analysis. The Figs. 2 and 3 show the timber frame and the type of meshes used in numerical analysis. Both frame and foundation are built up from the timber. The maximum value of seismic acceleration (4.25 [m/s 2 ]) is applied on the model (Fig. 4). The beams are characterized by two different sizes (1.8 and 3.3 meter length), and both of beams have 0.3x0.3 meters cross section. The column size is 3 meter length, and 0.3x0.3 meters of cross section in both models. The timber frame is installed on a foundation of 0.3x0.3x0.3 meter and beneath the foundation a footing is designed with dimension of 0.9x0.9x0.4 meters. Type of material Modulus elasticity, E (MPa) Poisson’s ratio, ν Unit weight, γ (kN/m 3 ) Timber 147.5 0.3 6.2 Table 1 : Soil and concrete mechanical properties [22]. Figure 2 : Typical timber frame models Figure 3 : Typical timber frame models, with mesh is used in numerical simulation