الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Slender columns subjected to biaxial eccentricity are encountered in building corners, in space frames and in many special structures. However,
most research was devoted to slender columns subjected to uniaxial bending.
In this research a general computer program, using an intelligent incremental load approach to minimize the number of increments, was developed. The program
has a library of stress-strain curves for concrete to which other stress
strain curves can be added. The program uses a bilinear stress-strain curve
for steel, and a nonlinear stress-strain curve for concrete. In this program,
numerical integration is carried out to evaluate the value and location of the
compression force acting on the concrete cross section according to any
stress-strain curve. For the particular stress-strain curve of the Egyptian
Code, formulae that eliminate the need for numerical integration and results
directly the compression force and its location were developed.
The main parameters influencing the behaviour of pin-ended slender
columns were studied using this program. Also, six experimental specimens
subjected to different end eccentricities were tested to assess these results.
Design charts for pin-ended slender rectangular columns subjected to uniaxial
and biaxial bending were also developed.
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