Towards the seismic and energy retrofitting of existing school buildings via an integrated design procedure

摘要: Nowadays most of the Italian existing reinforced concrete (RC) school buildings are obsolescent and not compliant with modern requirements in terms of seismic safety, energy efficiency and living comfort. Most of them require a deep renovation in order to improve the performances in terms of overall comfort, structural safety and energy efficiency. This makes their management difficult and expensive. In the past few years, significant economic resources have been mainly invested on the improvement of facilities, systems and general decor, while neglecting structural safety. Recent Italian seismic events showed the high seismic vulnerability of the existing school buildings, which exhibited severe damage or collapse, thus yielding significant social and economic losses. Therefore, an effective renovation design cannot neglect to consider, simultaneously, both structural and energy aspects.In this context, this research work presents a novel integrated retrofit design methodology for the structural and energy improvement of existing school buildings. An incremental retrofit approach consisting in implementing interventions with an increasing impact, increasing performance and increasing cost and benefits is herein proposed. In order to validate the proposed retrofit design approach and quantify the relevant costs and benefits, case studies typical Italian existing RC school buildings are investigated. Different retrofit solutions are discussed and compared in terms of seismic and energy performance, benefits of the intervention, level of disruption and direct costs of implementation. The outcomes of this study can be used to help the stakeholders in the …