The SiMu-Haz project regards the Performance-Based Multi-Hazard Design (PB-MH-D) of frame structures. Based on a framework partially defined in the literature, three kind of hazard will be taken into account: Earthquake, Wind and Blast. These are necessary to develop applications of the procedure for considering two specific issues related to the PB-MH-D: (1) the possibility of Hazard-Chain scenarios (e.g. blast following earthquakes) and (2) the possibility of concurrent independent hazards determining conflicting design strategies (e.g. wind- versus earthquake-driven design). A number of case studies will be developed (frames of different heights) and an optimal risk-targeted design procedure will be devised for Multi-Hazard design context. The results of the SiMu-Haz project will reduce the literature gap regarding the (1) and (2) above-mentioned issues. The research will be carried out by a numerical approach and by using commercial numerical Finite Elements codes for the simulation of planar (2D) frames under multi-hazard action scenarios. The results will highlight how the consideration of multi-hazard environments in the analysis of structures changes the design directions and choices with respect to the classical single-hazard approach.
1. Innovatività della ricerca
The SiMu-Haz research innovation concerns the specification of the aforesaid framework for the coherent design of structures in MH context that could help designing structures that during their existence cope a complex MH environment (the adoption of single-hazard optimal design strategies limits our decisional space as designers by not considering the solutions that comes from the "optimal compromise" between performances reached under actions of different nature).
2. Potenzialità di realizzare un avanzamento delle conoscenze rispetto allo stato dell'arte
Advancements of knowledge with respect to the state of the art will be provided about two specific research sub-topics in the MH panorama:
- Hazard Chain interaction
- Concurrent independent hazards determining conflicting design strategies
Potential long-run effects will regard the possibility of highline the fact that a Multi-Hazard design could result more efficient than the current single hazard design.