Building Seismic Loss Model for Tehran

In order to model the building seismic loss for Tehran, urban databases have been compiled and processed considering different census zones, city blocks, and parcel records. Aerial photos, together with stereo image processing and ground survey data, have provided parcel level geospatial information. These data sets include urban features, land uses, and building inventory with height information. This research also focuses on the selection and the development of structural vulnerability functions and risk algorithms. The damage curves are selected or modified according to some regional data, the ATC-13 report, and the functions obtained for Costa Rica. Also, analytical fragility curves are derived and adopted for the area of study after the HAZUS-FEMA methodology. Finally, an upgradeable seismic risk model is developed in GIS using all compiled input data and structural vulnerability functions.