Abstract
Reinforced concrete walls with openings are tested in both one-way and two-way action. The test panels, with a slenderness ratio of 30 or 40, were subjected to a uniformly distributed axial load with an eccentricity of tw/6. Apart from highlighting the experimental set-up; typical crack patterns, failure modes, and load-deflection behaviour are also reported. Utilising these and other published test results, a formula predicting the ultimate load of walls with openings was derived. A comparative study of predicted to test results indicates that the new formula is accurate and reliable.
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