decision support, resilience and sustainable reconstruction of historical city cores under seismic threat: the hyperion approach

Historical city cores are a blend of cultural heritage (ch), residential function and economic activity that forms the heart of many urban areas in the world. when built in seismic areas, they become the obvious soft spot that can cripple the local and regional economy even if moderate seismic events occur. tackling their vulnerability and enhancing theirresilience is a complex endeavor with far-reaching social, environmental and economic repercussions, which mirrors the intricate nature of historical areas. the breadth of the investigation invariably requires considering (a) ch assets (historic buildings, monuments, bridges, canals), (b) nearby/supporting non-ch structures and infrastructure (slopes, newerbridges, transmission power lines, telecommunication towers, etc.), as well as (c) the interconnectivity among them that makes a historical core function. to further complicate matters, each structure has been built to different design standards and level of workmanship while typically having witnessed many decades, centuries or even millennia of life, as well assuccessful or failed rehabilitation interventions.