The Behaviour Of Slender Reinforced Concrete Columns Subjected To Sustained Biaxial Bending PDF Download

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Behavior of Tee-shaped Reinforced Concrete Columns Subjected to Biaxial Bending and Axial Compression

Behavior of Tee-shaped Reinforced Concrete Columns Subjected to Biaxial Bending and Axial Compression
Author: Antoun Romanos Nader
Publisher:
Total Pages: 212
Release: 1984
Genre: Columns, Concrete
ISBN:

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The investigation deals with the effect of eccentric loading on the moment-curvature relationship of reinforced concrete tee columns. The test program consisted of two series of tee-shaped reinforced concrete columns, loaded biaxially at constant angle from the principle axes. Their end conditions were assumed to be pinned-ended. Loads, at constant rate, were gradually applied until failure. At each loading stage, measurements were made for the strains and deflections at the mid span section. The experimental and theoretical results of the load- deformation and moment-curvature were compared and found that the analytical approach proposed by Hsu is applicable to irregular sections such as tee columns, under small and large eccentricities, but tended to underestimate slightly the axial load and the moment-curvatures at failure.


Behavior of Square and L-shaped Slender Reinforced Concrete Columns Under Combined Biaxial Bending and Axial Compression

Behavior of Square and L-shaped Slender Reinforced Concrete Columns Under Combined Biaxial Bending and Axial Compression
Author: Wen Hu Tsao
Publisher:
Total Pages: 358
Release: 1992
Genre: Axial loads
ISBN:

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A numerical analysis was developed to evaluate the complete load-deflection and moment-curvature relationships for square and L-shaped slender reinforced concrete columns subjected to biaxial bending and axial load. This computer model can be used for any cross section geometry and material properties of normal concrete. The analysis was based on a deformation control and both the ascending and descending branches of curves can be studied. The finite difference method was introduced to calculate the deflections which satisfy the compatibility equations. Six square slender columns and eight L-shaped slender columns were tested to compare their experimental load-deformation results with the analytical results derived from the theoretical studies. A satisfactory agreement was achieved for the present study. The results of present study can be used for future design reference.