Nonlinear vibrocreep deformations of concrete

A brief review of hitherto proposed functions describing vibrocreep deformations of concrete is given, and the prospects of their application are analyzed. Using experimental results of various authors as well as his own, the author proposes a new approach to the problem of nonlinear deformations of concrete during vibrocreep at vibration frequencies greater than 2 Hz as well as the creep of concrete during long-term cyclic loading at frequencies less than 1.2 Hz. For long-term vibration loads with varying mean value of the cyclic load (increasing and decreasing), the notion of a coefficient of vibrocreep of concrete, which determines the growth of irreversible vibrocreep deformations of concrete is introduced.