Title
Strength And Ductility Of Concrete Encased Composite Columns
Abstract
Concrete encased composite column design provisions of the American Concrete Institute Code (ACI 318), AISC-LRFD Specification, and the AISC Seismic Provisions are reviewed and evaluated based on fiber section analyses that account for the inelastic behavior of steel and concrete, including the effects of strength and confinement on the concrete's stress-strain properties. Trial column designs are analyzed to evaluate their strength and ductility as a function of the ratio of structural steel to gross column area, the nominal compression strength of concrete, and confinement of concrete by seismic hoop reinforcing. The analyses highlight known differences in the calculated nominal strength requirements between the ACI 318 and AISC-LRFD provisions and suggest a review of criteria used to establish the limits of the provisions. Compared to columns with low-to medium-strength concrete, columns with high-strength concrete (f′c = 110 MPa) are shown to rely to a greater degree on hoop reinforcement to provide the necessary ductility for seismic design.
Publication Date
1-1-1999
Publication Title
Journal of Structural Engineering
Volume
125
Issue
9
Number of Pages
1009-1019
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(1009)
Copyright Status
Unknown
Socpus ID
0033181546 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/0033181546
STARS Citation
El-Tawil, Sherif and Deierlein, Gregory G., "Strength And Ductility Of Concrete Encased Composite Columns" (1999). Scopus Export 1990s. 3916.
https://stars.library.ucf.edu/scopus1990/3916