دوره 13، شماره 3 - ( 4-1402 )
جلد 13 شماره 3 صفحات 365-353 |
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Kaveh A, Rezazadeh Ardebili S. OPTIMAL DESIGN OF MIXED STRUCTURES UNDER COUPLED AND DECOUPLED TIME-HISTORY ANALYSES. IJOCE 2023; 13 (3) :353-365
URL: http://ijoce.iust.ac.ir/article-1-560-fa.html
URL: http://ijoce.iust.ac.ir/article-1-560-fa.html
OPTIMAL DESIGN OF MIXED STRUCTURES UNDER COUPLED AND DECOUPLED TIME-HISTORY ANALYSES. عنوان نشریه. 1402; 13 (3) :353-365
چکیده: (6223 مشاهده)
This paper deals with the optimum design of the mixed structures that consists of two parts, a lower part made of concrete and an upper part made of steel. Current codes and available commercial software packages do not provide analytical solutions for such structural systems, especially if a decoupled analysis is performed where the lower part is excited by ground motion and its response of total accelerations is used for the upper part. Due to irregular damping ratios, mass and stiffness, dynamic response of each part of a mixed structure differs significantly. The present paper aims at comparing of the optimum design of these structures under the coupled and decoupled models. Toward that goal, the coupled and decoupled time history analyses are performed and the optimum design of the two methods are compared. The results of the two approach show that the cost of the decoupled analysis is higher than the cost of the coupled analysis and the design of the decoupled method may be uneconomical, because the interaction between the two upper and lower parts is neglected.
نوع مطالعه: پژوهشي |
موضوع مقاله:
Optimal design
دریافت: 1402/2/1 | پذیرش: 1402/4/28 | انتشار: 1402/4/28
دریافت: 1402/2/1 | پذیرش: 1402/4/28 | انتشار: 1402/4/28
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