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Title: Dynamic Tensile-Compressive IBehavior of Concrete

Author(s): Paul F. Mlakar, Ken P. Vitaya-Udom, and Robert A. Cole

Publication: Journal Proceedings

Volume: 82

Issue: 4

Appears on pages(s): 484-491

Keywords: biaxial loads: compression; concretes; dynamic loads; dynamic tests;earthquake resistant structures; stresses; stress-strain relationships; tension.

DOI: 10.14359/10360

Date: 7/1/1985

The dynamic biaxial material behavior of concrete is important to the response of structures to seismic-and other dynamic loadings. A testing procedure was developed to examine this behavior for the case of monotonic tensile-compressive loadings. The results of experiments to determine load ratios between uniaxial compression and uniaxial tension in which the time of application spanned from 10 min to 25 msec are presented. The tensile stress at failure is seen to decrease with an increase of the simultaneously acting compressive stress. The strength increases as the loads act more quickly, but the strains at failure are invariable with respect to loading time.