Seismic risk and loss estimation for the building stock in Isfahan. Part I: exposure and vulnerability

This paper focuses on the exposure and fragility/vulnerability of residential, mixed residential/commercial, public building stock city Isfahan, in Central Iran, constitutes first part a seismic risk assessment study for that city. To determine assets at risk, we summarize details population from available georeferenced 2011 Census data. From this dataset local survey city, categorize taxonomy 27 construction classes characterized by age, height, material/lateral-load-resisting system. A model is then assembled dividing Isfahan blocks assigning appropriate statistical properties to buildings, such as class, built area, replacement cost. The each block also estimated accounted for. assess fragility vulnerability earthquake ground motion, class performed nonlinear dynamic analysis multiple equivalent single-degree-of-freedom systems. process generated set class- region-specific functions considered both record-to-record building-to-building response variability. In companion used curves all these asset probabilistically Isfahan.