A model for the stress-strain relationship of rectangular confined normal and high strength concrete columns

1994 ◽  
Vol 27 (10) ◽  
pp. 572-579 ◽  
Author(s):  
K. M. El-Dash ◽  
S. H. Ahmad
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Stress Strain ◽  
Strength Concrete ◽  
Strain Relationship ◽  
Relationship Of ◽  
High Strength Concrete Columns

Flexural-Shear Behavior of High-Strength Concrete Short Columns

2001 ◽  
Vol 17 (4) ◽  
pp. 679-695 ◽  
Author(s):  
Armen Martirossyan ◽  
Yan Xiao
Keyword(s):  
High Strength Concrete ◽  
Axial Load ◽  
High Strength ◽  
Concrete Columns ◽  
Experimental Program ◽  
Stress Strain ◽  
Strength Concrete ◽  
Short Columns ◽  
Strain Relationship ◽  
High Strength Concrete Columns

This paper discusses the seismic performance of high-strength concrete columns. The research is a part of an ongoing comprehensive experimental program to investigate seismic design methods of high-strength concrete structures. The first stage of the program involved testing of fifteen high-strength concrete stub columns under concentric axial compression. The concrete compressive strength was about 69 MPa (10,000 psi). In addition, a large database including eighty-six similar tests conducted by other researchers was constructed, and stress-strain behavior of high-strength concrete was investigated. Based on the analysis, a stress-strain relationship for high-strength concrete columns was proposed. Secondly, six 1/3-1/2 scale high-strength concrete short columns were tested under combined axial load and cyclic shear, with double curvature condition. The primary experimental parameters included axial load ratio, longitudinal reinforcement ratio, and volumetric ratio of transverse reinforcement. The proposed stress-strain relationship was used in the analysis of the lateral force–displacement relationship for high-strength concrete columns. Moment-curvature analysis, based on proposed equivalent stress block approach, as well as plastic hinge mechanism, has been incorporated in this analytical tool. The analytical results agreed well with the primary load-deflection envelopes obtained from the tests.

scholarly journals Use of High-Strength Bars for the Seismic Performance of High-Strength Concrete Columns

2009 ◽  
Vol 7 (1) ◽  
pp. 123-134 ◽  
Author(s):  
Hassane Ousalem ◽  
Hiroto Takatsu ◽  
Yuji Ishikawa ◽  
Hideki Kimura
Keyword(s):  
Seismic Performance ◽  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Strength Concrete ◽  
High Strength Concrete Columns
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