# Confined Columns under Eccentric Loading

@article{Saatcioglu1995ConfinedCU, title={Confined Columns under Eccentric Loading}, author={M. Saatcioglu and A. Salamat and S. Razvi}, journal={Journal of Structural Engineering-asce}, year={1995}, volume={121}, pages={1547-1556} }

The characteristics of confined-concrete columns under strain gradient were examined. Twelve columns were tested under two different levels of end eccentricity. The test parameters included the arrangement, spacing, and volumetric ratio of confinement reinforcement. Columns with well-distributed longitudinal reinforcement, laterally supported by closely spaced transverse reinforcement, showed extremely ductile behavior, developing inelastic displacements exceeding 4% of the drift ratio without… Expand

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#### References

SHOWING 1-10 OF 22 REFERENCES

Observed Stress‐Strain Behavior of Confined Concrete

- Engineering
- 1988

Thirty‐one nearly full‐size reinforced concrete columns, of circular, square, or rectangular wall cross section, and containing various arrangements of reinforcement, were loaded concentrically with… Expand

STRENGTH AND DUCTILITY OF TIED CONCRETE COLUMNS

- Materials Science
- 1980

Short 12-in. (305 mm) square concrete columns with rectangular ties as confinement steel are tested under monotonic axial compression to failure. Land-deformation curves are presented. Contribution… Expand

Ductility Improvement of High-Strength Concrete Columns With Lateral Confinement

- Materials Science
- 1990

§;ynopsis : The object of this study is to investigate the possibility of improving ductility of high-strength concrete columns with the lateral reinforcement. Eight column specimens confined by… Expand

CONFINED CONCRETE COLUMNS WITH STUBS

- Materials Science
- 1993

The critical sections of columns in a framed structure subjected to earthquake loads are invariably adjacent to the beam-column/slab joints or the footings. External restraint provided by the heavy… Expand

Ductility of Square-Confined Concrete Columns

- Geology
- 1982

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… Expand

ANALYTICAL MOMENT-CURVATURE RELATIONS FOR TIED CONCRETE COLUMNS

- Materials Science, Engineering
- 1992

The research reported here is a follow-up on experimental work in which 16 12 in. (305 mm) square and 9 ft (2.74 m) long columns were tested under flexure to large inelastic deformations while… Expand

Strength and Ductility of Confined Concrete

- Engineering
- 1992

An analytical model is proposed to construct a stress‐strain relationship for confined concrete. The model consists of a parabolic ascending branch, followed by a linear descending segment. It is… Expand

Theoretical stress strain model for confined concrete

- Materials Science
- 1988

A stress‐strain model is developed for concrete subjected to uniaxial compressive loading and confined by transverse reinforcement. The concrete section may contain any general type of confining… Expand

Flexural Members with Confined Concrete

- Materials Science
- 1971

Existing experimental evidence for the stress-strain curve for concrete confined by transverse steel hoops or spirals is examined and used to determine the moment-curvature characteristics of… Expand

Analytical Model for Concrete Confinement in Tied Columns

- Geology
- 1982

An analytical model for the confinement mechanisms in tied columns has been developed. The model is based on the test results reported previously. A complete stress-strain curve for confined concrete… Expand