Intelligent Generative Method for the Planar Layout of Modular Steel Building Structures
In order to study the intelligent generative design method for the planar layout scheme of modular steel building structures,the multi-objective nonlinear constrained integer programming problem and the linear integer programming problem were formed based on the finite discretization of the planar feasible domain,different variable definition methods,constraints and objective functions,respectively.The solution methods based on the genetic algorithm and the planar tiling algorithm were also proposed,respectively.The feasibility and effectiveness of the proposed methods were illustrated by a numerical example based on a L-shaped planar feasible region.The results of the numerical example indicate that the optimal solution of modular steel building layout scheme under the same objective function is not unique.The intelligent generative method based on the genetic algorithm can obtain feasible optimums under a relatively small computational cost and can provide a basis for the selection of the module element size.The intelligent generative method based on the planar tiling algorithm can be applied to different sets of module elements and generate the layout scheme with the lowest total number of module elements for a given module element set.By comparing the results of the two intelligent generative methods,the intelligent generative method is suggested to be used,based on genetic algorithm to initially determine the module element size,and further combine the two generative design methods to obtain various optimal planar layout schemes.
modular steel building structureplanar layoutautomatic generationgenetic algorithmtiling
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