Date of Award

Summer 2011

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Civil & Environmental Engineering

Program/Concentration

Civil Engineering

Committee Director

Zia Razzaq

Committee Member

Isao Ishibashi

Committee Member

Mojtaba B. Sirjani

Call Number for Print

Special Collections LD4331.E542 P435 2011

Abstract

This thesis presents the outcome of an investigation into the experimental and theoretical behavior of steel angle section members under combined axial load and unsymmetric bending. Tests are conducted on a series of six angle section members provided with biaxial pinned-end boundaries about the cross-sectional non-principal axes. The end bending moments and axial load are applied in a quasi-static manner until the member load-carrying capacity is reached. The experimental load-deflection and load-strain curves are recorded. The theoretical analysis is based on a system of both elastic as well as materially nonlinear differential equations. The equations were solved using an iterative finite-difference algorithm. The predicted peak load and moment values are in excellent agreement with those found in laboratory experiments. It is also found that the p-delta effects play a dramatic role in the determination of the member load-carrying capacity.

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DOI

10.25777/t4wg-za73

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