Volkov A. Strength and strains of reinforced concrete elements made of high-strength concrete taking into account duration of loading and uneven heating up to +200°С

The results of experimental investigations of influence of conditions of drying and the sizes of samples on shrinkage strain, creep and temperature-shrinkage strain of concrete by short-term and long heating up to +200°С, as well as long loading by levels 0,3-0,6 on strength and strain of the high-strength modified concrete, the offer of accounting of the given characteristics changes in existing methods of calculation taking into account М0 are presented. The results of experimental and theoretical researches of influence of uneven heating and the scale factor on characteristics of the stress-strain state of bent reinforced concrete elements of the structure made of high-strength modified concrete taking into account heterogeneity strength and strain properties on volume. Research of the stress-strain state of designs of high-rise buildings and constructions estimate the efficiency of application of the high-strength modified concrete to put up them erect are presented.