چكيده لاتين :
Prediction of performance level of the reinforced concrete dual structural
systems are not only dependent on the method ofnonlinear analysis, but are also related
to some effective parameters used in each method. This article studies the effect ofsome
important parameters such as plastic rotational capacity of the structural elements,
capacity spectrum, drift and the overall damage ofthe building, from two viewpoints, one
ofwhich is the performance level ofstructural elements and also the performance level of
the overall structure neglecting the non-structural elements. In order to achieve the
expected results, 92 nonlinear analyses including 64 nonlinear static analyses and 28
nonlinear dynamic analyses have been carried out on two dimensional frames comprising
8, 12, 16 and 20 stories. The above mentioned two dimensional frames have been
selected from three dimensional buildings which were analyzed and designed according
to the 3ra edition of 2800 standard and the Iranian concrete code ofpractice. All of the
nonlinear analyses were carried out on the bases ofthe above mentioned parameters as a
main criteria utilizing IDARC-5.5 program. The obtained results show that the
performance evaluation based on overall displacement of the whole structure and the
failure ofan element, is a restriction ofcapacity curve which has provoked some doubts.
