Abstract
Seismic risk mitigation levels for an existing building are a balance between the reduction of risk and the cost of rehabilitation. Evidently, the more that is paid the more risk is reduced; however, due to limited public budgets a practical approach is needed to manage the risk reduction program when a portfolio of buildings is concerned. Basically, decision makers face a challenge when there are a large number of vulnerable buildings and there is no plan for how to allocate the appointed budget. This study develops a technological platform that implements a decision-making procedure to establish how to optimally distribute the budget in order to achieve the maximum possible portfolio risk reduction. Decisions are made based on various presumed intervention strategies dependent on building’s level of risk. The technological platform provides an interactive, user-friendly tool, available online, that supports stakeholders and decision makers in understanding what the best economic resource allocation will be after selecting the available budget for a specific portfolio of buildings. In addition, the ease of use enables the user to analyze the extent of risk reduction achievable for different budget levels. Therefore, the web platform represents a powerful tool to accomplish two challenging tasks, namely optimal budget selection and optimal budget allocation to gain territorial seismic risk mitigation.
Highlights
The fragility curves derive from the comparison of capacity and demand, where the first is determined performing a wide number of structural analyses assuming several first is determined performing a wide number of structural analyses assuming several sets sets of random variables, while the latter comes from a probabilistic modelling of seismic of random variables, while the latter comes from a probabilistic modelling of seismic hazhazard
Decision makers face a challenge given that there are a large number of vulnerable buildings
This project was inspired by the idea from the aforementioned missing point in the seismic risk management of building portfolios
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. The optimal retrofit solution can be selected among the possible scenarios as the one that allows minimization of the seismic risk given the available budget This procedure can provide significant support to decision makers in planning appropriate seismic risk mitigation strategies since they are able to provide a global and comprehensive overview of the costs and benefits associated with a very large number of different scenarios. This implies that does the output cost–benefit analysis generate a large amount of information, and managing the input data could be an issue This is the motivation behind the present work that integrates and organizes the procedure proposed in [19] on an Italian georeferenced platform, freely available online, allowing an interactive implementation of a decision-making assessment for the prioritization of regional seismic retrofit interventions, satisfying a financial constraint.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
