NUMERICAL MODELING OF TIMBER-STEEL HYBRID STRUCTURES: CHALLENGES AND INNOVATIVE STRATEGIES

The increasing diffusion of timber as a structural material asks for major detailing concerning numerical modelling; timber is commonly used with other construction materials in order to create hybrid structures exploiting each material's strengths and smoothing less efficient features. In this way – combining timber and steel – structural performances are guaranteed while lightness and sustainability of only-timber structures are maintained. Some specific issues linked to timber material – e.g., orthotropic behaviour – and contact with steel are specifically addressed, exploring different techniques according to the scale of the problem. Finally, a complete steel-timber hybrid beam-to-column joint is assembled, with a clear understanding of each interaction and insights for future adjustments to the benchmark model.