Description
In this work, two main structural solutions have been proposed to retrofit an existing Italian hospital building located within the National Cancer Institute “G. Pascale Foundation” in Naples. The structure under consideration is composed by nine reinforced concrete cores connected by means of steel structural members.
Preliminarily, the seismic vulnerability has been evaluated according to the linear dynamic analysis with reference to both for the Life Safety (SLV) limit state and the Operational (SLO) limit state according to the current Italian code. The analyses have been performed using the SAP2000 program, post-processor VIS15 and plugin SPF. Subsequently, in order to improve the structural performance of the building, two solutions have been developed both based on the reinforcement of the RC cores but by adopting two different approaches: the first one characterized by the use of the added RC walls; the second one based on the using of steel plates. Then, the attention is focused on the pile foundation. In particular, the structural vulnerability has been evaluated by adopting a static linear analysis and, consequently, a retrofitting intervention has been provided. Finally, the proposed interventions have been evaluated from the economic and environmental points of view.
