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Information × Registration Number 0211U005358, 0107U000090 , R & D reports Title Development of methods of design estimation of streined condition of complex stressed reinforced-concrete constructions of buildings and the structures having defects and damages and working under complex of temperature-humidity conditions, and the development of design techniques and magnification. popup.stage_title Head Korsun Vladimir Ivanovich, Registration Date 17-05-2011 Organization Donbas national akadeny of civil engineering and architecture popup.description2 The review of literary sources and analysis of results experimentally theoretical researches of processes of brief and protracted deformation of ordinary and high-performance heavy concretes in the conditions of the mono- and multyaxial tense states is executed. Experimental data of relative deformations of shrinkage and creep of ordinary and high-performance heavy concretes at an axial compression under the conditions of action of normal temperature are got, experienced data on descriptions of physical and mechanical properties of concrete, such as durability at an axial compression and tension, initial modulus of elasticity, maximum values of deformations of concrete, coefficient of transversal deformations, self-reactance levels of process of microcracking. The experimental data about influence of scale factor, which is characterized by the module of open surface, on descriptions of physical, mechanical and rheological properties of concrete in the conditions of the monaxonic tense states - compression and tension, and also data about a change strength and deformation properties of concrete on volume large scale specimens with the different terms of drying out are got. Experimental data about influence of type of the flat tense state "compression-compression" and "compression-tension" on deformation of creep of concrete under the conditions of normal temperature on the diagrams of deformation of concrete at brief ladenings on the values of strength, modules of elasticity, shear and volumetric deformations, coefficient of transversal deformations are got. Experimental researches of change of thermophysical and moisturephysical properties of concrete at cyclic temperature-humidity influences are executed. The shear-breakaway model of destruction of structure of concrete is worked out and on her basis the construction of dilatation orthotropic model of deformation of concrete for the general case of the volumetric tense state is executed. The correlations of deformation theory of plasticity of concrete are used as the initial for description of deformations of creep of concrete for the general case of the flat tense state. The analytical expression of function of influence of type of the tense state on characteristics of volumetric and shear creep of concrete is offered. The results of theoretical and experimental researches of the stress-stained state of reinforce-concrete elements of constructions taking into account heterogeneity of properties and volumetric tense state are worked out. The recommendation on the account of influence of type of the tense state, scale factor on strength and deformations of ordinary and high-performance heavy concretes are given. Product Description popup.authors Єфіментко Роман Сергійович Брижатий Едуар Порфірієвич Брижатий Олег Едуардович Віноградова Тамара Миколаївна Волков Андрій Сергійович Гриценко Юлія Віктороввна Дмитренко Євген Анатолійович Завялов В'ячеслав Миколайович Калмиков Юрій Юрійович Каніщев Руслан Олексанндрович Коротков Олександр Вікторович Корсун Артем Володимирович Корсун Володимир Іванович Косторніченко Валерій Анатолійович Левін Віктор Матвійович Левченко Віктор Миколайович Мельник Андрій Валерійович Нєдорєзов Андрій Володимирович Невгень Микола Олександрович Шолохова Ніна Миколаївна popup.nrat_date 2020-04-02 Close