دوره 3، شماره 2 - ( 3-1392 )                   جلد 3 شماره 2 صفحات 243-225 | برگشت به فهرست نسخه ها

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Mashayekhi M, Estekanchi H. INVESTIGATION OF NON-LINEAR CYCLES’ PROPERTIES IN STRUCTURES SUBJECTED TO ENDURANCE TIME EXCITATION FUNCTIONS. IJOCE 2013; 3 (2) :225-243
URL: http://ijoce.iust.ac.ir/article-1-129-fa.html
INVESTIGATION OF NON-LINEAR CYCLES’ PROPERTIES IN STRUCTURES SUBJECTED TO ENDURANCE TIME EXCITATION FUNCTIONS. عنوان نشریه. 1392; 3 (2) :225-243

URL: http://ijoce.iust.ac.ir/article-1-129-fa.html


چکیده:   (19298 مشاهده)
Endurance Time Method (ET) is a dynamic analysis in which structures are subjected to intensifying accelerograms that are optimized in a way that seismic performance of structures can be estimated at different hazard levels with the best possible accuracy. For the currently available ET accelerograms, regardless of the shaking characteristic, an excitation level is recognized as a representative of a specific hazard level, when the acceleration and the displacement spectrum produced by the ET accelerograms up to that excitation level will be compatible with the acceleration and the displacement spectrum associated with that hazard level. This study compares the shaking characteristics of the current ET accelerograms with the ground motions. For this purpose, distribution of plastic cycles and the equivalent number of the cycles are considered as shaking properties of a motion. This study suggests a procedure to achieve the best possible consistency between the equivalent number of cycles of the current ET records and the ground motions. Moreover, a procedure to generate the new generation and optimization of the ET accelerograms which are more consistent with the ground motions are suggested.
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نوع مطالعه: پژوهشي | موضوع مقاله: Optimal analysis
دریافت: 1392/1/8 | پذیرش: 1392/2/7 | انتشار: 1392/2/7

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