Rintc project: Nonlinear analyses of Italian code conforming precast R/C industrial buildings for risk of collapse assessment

Most of modern seismic design codes adopt the performance-based approach by defining a pre-defined level of safety for different limit states. These safety margins are implicitly defined into the definition of detailing provisions as well as in partial safety factors for both actions and materials strength. Moreover, such implicit provisions are related to the specific structural typology; hence, the structural safety can change for different typologies designed for the same site. This study investigates the seismic performance of typical Italian RC precast buildings by means of an extensive parametric study. Both the structural typology and the geometrical configurations are defined in order to represent the most common practice in the country. The investigated buildings are located in five sites with different levels of seismic hazard and two soil types are also considered. The collapse assessment is investigated by means of multi-stripe analyses, performed by non-linear dynamic analyses at 10 intensity levels.