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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Form Finding & Optimization

Discrete Optimum Structural Design of Sinusoidal Corrugated Web Beam using DE

< Table of Contents for Form Finding & Optimization
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Form Finding & Optimization
  • Pages: 7
  • Title: Discrete Optimum Structural Design of Sinusoidal Corrugated Web Beam using DE
  • Author(s): Donwoo Lee, Sudeok Shon, Seungjae Lee
  • Keywords: sinusoidal corrugated web beam, optimum structural design, minimum weight, discrete design variable, differential evolution algorithm, shape parameter
Abstract
This present paper studied the weight optimum design processor for sinusoidal corrugated web beam using the differential evolution algorithm and investigated the effects of parameters. Global search algorithm and discrete variables are used to developed program and the convergence of the result was compared with the optimal solution convergence of the weight optimum design. The shape parameters for the design of sinusoidal corrugated web can be defined by the depth of corrugation wave, weigh length and web thickness. The corrugation function of sinusoidal shape, half-wave length and inertia moment of corrugated web can be defined, respectively. We consider objective function as minimum weight of the girder, and use slenderness ratio, stress of flanges and corrugated web, and the girder deflection as the constraint functions. And also the DE (Differential Evolution) algorithm is adopted to search the global minimum point by using the production list as a discrete design variable.

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