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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 55774 (09)
- University: Sharif University of Technology
- Department: Civil Engineering
- Advisor(s): Bakhshi, Ali
- Abstract:
- This thesis aims to assess the seismic risk of the community of schools with masonry buildings in the Tehran metropolitan in the next 50 years and to prioritize the buildings of this community for seismic retrofit based on the optimal mitigation of risk of the community. Tehran is among the largest cities with the highest level of seismic risk in the world, and Masonry buildings are among the structures with poor seismic performance; Therefore, it is essential to conduct a comprehensive and accurate evaluation of the seismic risk of schools, as one of the most critical and sensitive occupancies, in this region and with this type of structure. It is also very beneficial to reduce the seismic risk optimally by allocating resources intelligently to the seismic retrofit of these buildings. Seismic risk in this research is represented by the loss curve, i.e., the exceedance probability of loss in the next 50 years, which is conducted using risk analysis based on reliability methods and on the platform of Rtx software which has been developed in the Sharif University of Technology to perform reliability, risk and resilience analysis. In this software, a chain of probabilistic models is created to model the risk of an earthquake, the damage caused by it, and the ensuing costs. The prioritization of 789 school buildings in the studied community is accomplished based on sensitivity analysis in the framework of this software. The sensitivity measures in this research are the derivative of the risk measures with respect to the cost of building retrofit. These risk measures are the moments of the probability distribution of the total portfolio cost, i.e., the seismic retrofit and repair costs.
- Keywords:
- Reliability Model ; Prioritization ; Seismic Hazard Analysis ; Probabilistic Seismic Structures Vulnerability ; Masonry Buildings ; Schools Building ; Tehran ; Seismic Rehabilitation
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