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Article
Stress-Based Topology Optimization of Steel-Frame Structures Using Members with Standard Cross Sections: Gradient-Based Approach
Journal of Structural Engineering
  • Navid Changizi, Cleveland State University
  • Mehdi Jalalpour, Cleveland State University
Document Type
Article
Publication Date
8-1-2017
Abstract

This article presents a computationally efficient methodology for stress-based topology optimization of steel frame structures with cross-sectional properties that are mapped from I-beam sections of a design manual. To account for the natural variability of the data, this mapping is achieved via quantile regression to derive continuous relationships between cross-sectional area (the design variable) and other section properties. These relationships are used for deriving the gradient of structural performance, which allows using computationally efficient gradient-based optimization schemes. Three frame structures are designed using the proposed algorithm, the resulting designs are compared with traditional compliance-based topology optimization algorithms, and changes in the designs are discussed. A comparison of stress distribution within the designed structures verified the effectiveness of the proposed methodology.

Comments

This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0001807

DOI
10.1061/(ASCE)ST.1943-541X.0001807
Version
Postprint
Citation Information
Navid Changizi and Mehdi Jalalpour. "Stress-Based Topology Optimization of Steel-Frame Structures Using Members with Standard Cross Sections: Gradient-Based Approach" Journal of Structural Engineering Vol. 143 Iss. 8 (2017)
Available at: http://works.bepress.com/mehdi_jalalpour/19/