Seismic Behaviour of Historic Wooden-Frame Buildings-Drain 3d Modeling With Florence Hysteresis Model

Abstract eng:
The study is a research project on historic wooden frame building in Trentino area investigating in all aspects of the seismic behaviour of these structures. A contribution starting from a work out of experimental data between virtual and analytical models. A set of cyclic tests were carried out following the European standard EN 12512 (Timber structures – test method – Cyclic testing of joints made with mechanical fasteners ), in order to achieve the hysteretic behaviour of six different possible wall arrangements considered for the purpose to value the structural behaviour of the buildings in question. The Software DRAIN3DX was used to undertake the numerical analysis. This software works with simple structural models, but is capable to simulate the dynamic response of inelastic structures made of nonlinear elements connected at nodes. After the calibration process and built a model of each type of wooden frame, we have built a 3D model of the entire building with DRAIN 3D to investigate on the seismic performance of these typical buildings. The numerical analysis were performed for several historical earthquakes. For each earthquake, the Peak Ground Acceleration (PGAu) producing the “near collapse” ultimate state of this building type has been determined.

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