Research Article
Feb 1963
Method for Plastic Design of Frames
Publication: Journal of the Structural Division
Volume 89, Issue 1
Abstract
An approximate optimizing criterion is introduced in the problem of optimum design of frames. The new criterion, having the form of the elastic energy, drastically reduces the difficulties of the problem by transforming it to one of elastic analysis. In addition, it is more realistic than those previously used in that it does not require the vanishing of the cross section wherever the bending moment becomes zero. This eliminates the mathematical irregularities that complicate the problem and the absurd results to which these irregularities lead. The new criterion is applied to the minimum weight design of a portal frame, of which the continuously varying cross section depends on a single parameter and the strength, derived from resistance to bending alone, is exhausted only at plastic collapse; an upper bound of the approximation error is established. Furthermore, ways are indicated by which the approximation can be improved and the method can be applied to elastic design or the design of structures, the strength of which depends on their resistance to torsion and axial loading as well.
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 89 • Issue 1 • February 1963
Pages: 197 - 216
Copyright
© 1963 American Society of Civil Engineers.
History
Published in print: Feb 1963
Published online: Feb 1, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
George J. Megarefs, M.ASCE
Asst. Prof., Dept. of Mechanics, Illinois Inst. of Tech., Chicago, Ill.
Philip G. Hodge Jr.
Prof., Dept. of Mechanics, Illinois Inst. of Tech., Chicago, Ill.
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.