چكيده لاتين :
Displacement based seismic design usually requires nonlinear dynamic
or static analyses to assess the performance level of the structure under seismic
action. To trace the exact performance point of a structure these analyses should
sometimes be repeated several times. Analysis iterations mainly depend on the initial
design and performance of the structure. In this paper an intelligent system has been
presented for estimation of plastic hinge distribution and lateral ductility distribution
of steel structures based on direct displacement based design procedure. The method
has been applied to the steel braced frames with concentric and eccentric bracing
systems in low, medium and high rise buildings. Finally the intelligent system has
been verified using nonlinear dynamic analysis
