الفهرس 
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Abstract
Earthquake Engineering aims to reduce seismic risks resulting from
earthquakes and facilitate the process of designing earthquake-resistant
buildings. Evaluation of seismic vulnerability of structures is of most
importance due to the increased number of seismic events that causes significant losses and damages. The main outlines for carrying out
seismic vulnerability assessment of existing or new buildings through the
use of robust database containing as many as available earthquake records. The assessment is carried out using the capacity spectrum method as recommended by the ACT -40. The capacity spectrum method (CSM) is a nonlinear static analysis method suggested by several
regulations such as the ATC and FEMA, which compares the global force-displacement capacity curve of a structure with an earthquake response spectrum in graphical bases. During study, the capacity spectrum method is investigated and applied to buildings through the development of robust database including large stock of historical earthquakes. To apply the Capacity Spectrum Method on the studied
buildings, the capacity curve of these buildings are compared with the
response spectrum of many earthquakes. Intersection of capacity curve of
building with demand curve of earthquake group is the performance point that indicates the category of building. The developed database is
customized in the vulnerability assessment of different example buildings with emphasis on the characteristics leading to the alteration of seismic vulnerability class. The results are presented in a form valuable to practical design guides.