Research Article
Apr 1982
Ductility of Square-Confined Concrete Columns
Publication: Journal of the Structural Division
Volume 108, Issue 4
Abstract
A brief review showed considerable differences in the quantity of rectangular hoops required by various seismic design codes in the potential plastic hinge regions of rectangular reinforced concrete columns. Tests conducted on four nearly full size reinforced concrete columns with a 550 mm (21.7 in) square cross section, various axial load levels, and various quantities of rectangular hoops, are described. The hoops were designed according to the recommendations of the draft New Zealand Concrete Design Code. The columns demonstrated very ductile behaviour when loaded by simulated seismic loading up to displacement ductility factors of at least 6, confirming the adequacy of the proposed design provisions. Considerable enhancement of flexural strength was observed over that calculated by normal code design procedures, but the enhancement could be accounted for a refined flexural strength analysis which included the effect of strain hardening of the longitudinal steel and the increase in strength and ductility of the confined concrete. Maximum compressive concrete strains in the range 0.016 to 0.026 were measured on the surface of the confined concrete core at the peak displacements.
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 108 • Issue 4 • April 1982
Pages: 929 - 950
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Apr 1982
Published online: Feb 1, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Robert Park, M.ASCE
Prof. and Head of Dept. of Civ. Engrg., Univ. of Canterbury, Christchurch, New Zealand
M. J. Negel Priestley
Reader in Civ. Engrg., Univ. of Canterbury, Christchurch, New Zealand
Wayne D. Gill
Asst. Engr., Ministry of Works and Development, Huntly, New Zealand
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.