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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.
Showing 1-5 of 15 Abstracts search results
January 1, 1966
Samuel P. Mauch
Nonlinear mechanical material properties derived from test data reported in the literature are used to predict the life of pinned, initially imperfect rectangular reinforced concrete columns under a constant axial load. Results according to the rate of creep law and the time-superposition law are obtained.
H. R. Brown and A. S. Hall
Reports the results of tests on 30 eccentrically loaded prestressed concrete columns with an I/t ratio of 33. The degree of prestress varied from zero to 0.6 f'c. This paper examines the effect of prestressing on the loadcarrying capacity of slender columns and questions whether an optimum degree of prestress occurs.
A theoretical analysis of the buckling of eccentrically loaded long reinforced concrete columns with abrupt change of the cross section. The solution is based on the plastic theory. An experimental program checked the computed ultimate capacity values of the theoretical analysis.
J. G. MacGregor and S. L. Barter
Tests on eight columns bent in antisymmetrical double curvature with h/t = 27.3 are discussed. The columns with small end eccentricities approached a single curvature shape and an unstable condition at failure. The columns with large eccentricities remained in the double curvature shape until failure occurred in tension at the point of maximum applied moment.
I. Martin, J. G. MacGregor, E. 0. Pfrang, and J. E. Breen
Compares ACI Building Code design procedure with Comite Europeen du Beton (CEB) procedure and other more elaborate methods of predicting the behavior of tied and spirally reinforced columns. The factors of safety in the material specifications, in the load and capacity reduction factors, and in the design equations for short columns are analyzed separately. The ACI and CEB design equations for slender columns are compared with a theoretical method of analysis.
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