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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Static and Dynamic Loading Tests on Two Small Three-Dimensional Multistory Reinforced Concrete Frames
Author(s): Grant K. Wilby, Robert Park,
and Athol J. Carr
Publication: Special Publication
Appears on pages(s): 35-64
Keywords: beams (supports); columns (supports); cracking (frac-ductility;
dynamic loads; dynamic response; dynamic tests;
frames; models; reinforced concrete; static loads; strength; -- -- structural design.
Abstract:Two identical small scale six storey three dimensional reinforced concrete framed structures were constructed consisting of columns, beams and floor slabs. Each structure had a single bay in each direction and was approximately one fifth of full size. All members were designed for ductility according to the seismic design requirements of ACI 318-71, One structure was subjected primarily to static lateral loading and the other structure was subjected primarily to dynamic loading on a shaking table. The lateral load strength of the statically loaded structure was accurately predicted when the actual properties of the structure were taken into account. Severe stiffness degradation occurred during cyclic loading in the inelastic range. The displacement response of the dynamically loaded structure was compared with the displacement response predicted by a dynamic frame analysis computer program and the accuracy of the predicted response was found to be extraordinarily dependent on the stiffness and-damping. The tests revealed that under lateral loading significant torsion is induced into the beams at right angles to the direction of loading and this may lead to severe torsional cracking of those beams and a consequent decrease in stiffness and strength of the framed structure.
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