Research Article
Jan 1971
Automated Optimum Design from Discrete Components
Publication: Journal of the Structural Division
Volume 97, Issue 1
Abstract
Optimization in structural design using discrete variable can exploit the discrete characteristics of the design problem and avoid artificial and often self-defeating discretation from problem solutions in continuous variables. A method for solving member-sizing problems using wide flange tables, a current design code, and linear elastic behavior due to arbitrary loading conditions is shown to be within reasonable economic bounds. The method consists of a combinatorial algorithm classified as a branch-and-bound type. Starting with a lower-bound infeasible solution the algorithm detects a feasible solution for an upper bound and explores the region for a local optimum, bouncing along the constraints if the value of the objective function can be improved. Reanalysis is performed at each step with an exact method which performs only part of normal analysis steps. Included as part of the STRUDL information system, the programmed algorithm allows an engineer to assist in improving the optimization process and perform optimization on a structure on a piece-wise basis.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Structural Division
Volume 97 • Issue 1 • January 1971
Pages: 175 - 189
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Jan 1971
Published online: Feb 1, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Aldo Cella, AM.ASCE
Research Scientist, Consiglio Nazionale Delle Ricerche, Instituto di Elaborazione Della Informazoine, Pisa, Italy
Robert D. Logcher, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Massachusetts Institute of Technology, Cambridge, Mass.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.