دوره 1، شماره 4 - ( 9-1390 )
جلد 1 شماره 4 صفحات 520-507 |
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Kaveh A, Bakhshpoori T, Afshari E. AN OPTIMIZATION-BASED COMPARATIVE STUDY OF DOUBLE LAYER GRIDS WITH TWO DIFFERENT CONFIGURATIONS USING CUCKOO SEARCH ALGORITHM. International Journal of Optimization in Civil Engineering 2011; 1 (4) :507-520
URL: http://ijoce.iust.ac.ir/article-1-60-fa.html
URL: http://ijoce.iust.ac.ir/article-1-60-fa.html
AN OPTIMIZATION-BASED COMPARATIVE STUDY OF DOUBLE LAYER GRIDS WITH TWO DIFFERENT CONFIGURATIONS USING CUCKOO SEARCH ALGORITHM. عنوان نشریه. 1390; 1 (4) :507-520
چکیده: (27085 مشاهده)
This paper is concerned with the economical comparison between two commonly used configurations for double layer grids and determining their optimum span-depth ratio. Two ranges of spans as small and big sizes with certain bays of equal length in two directions and various types of element grouping are considered for each type of square grids. In order to carry out a precise comparison between different systems, optimum design procedure based on the Cuckoo Search (CS) algorithm is developed. The CS is a meta-heuristic algorithm recently developed that is inspired by the behavior of some Cuckoo species in combination with the Lévy flight behavior of some birds and insects. The design algorithm obtains minimum weight grid through appropriate selection of tube sections available in AISC Load and Resistance Factor Design (LRFD). Strength constraints of AISC-LRFD specification and displacement constraints are imposed on grids. The comparison is aimed at finding the depth at which each of the different configurations shows its advantages. The results are graphically presented from which the optimum depth can easily be estimated for each type, while the influence of element grouping can also be realized at the same time.
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