CALCULATION OF THE REINFORCED ELEMENTS IN ONE-SIDED EXPANSION BY USING NONLINEAR CONCRETE CREEP EXTENTION
Journal Title: Вісник Кременчуцького національного університету імені Михайла Остроградського - Year 2017, Vol 1, Issue 104
Abstract
Purpose. The article investigates a reinforced concrete element of a rectangular profile, hardened in the stretched zone by upbuilding, using a nonlinear deformation model taking into account nonlinear sustained processes occurring in concrete. The adopted nonlinear equation for concrete under compression takes into account both the nonlinearity of the hardened instantaneous deformations and the nonlinearity of the long term deformations. For the old concrete, taking the measure of difference type creep, the integral nonlinear creep equation has been represented in the form of a first order nonlinear differential equation. Accepting the traditional hypotheses used in the calculation of bent reinforced concrete elements, taking into account the elastically plastic operation of the reinforcement, the solution of the problem has been reduced to solving the Cauchy problem for a nonlinear system of first-order differential equations. Further, the built resolving system of nonlinear differential equations has been solved numerically with the use of fourth-order Runge-Kutta method. Since the problem is solved numerically, the increase in the unit of time is easily accounted for elastically instantaneous deformation and strength of concrete. Using the developed method on the basis of numerical experiments it has been demonstrated the efficiency of the proposed calculation procedure.
Authors and Affiliations
E. Z. Asadov
Keywords
Related Articles
- EP ID EP659639
- DOI -
- Views 54
- Downloads 0
THE SYSTEM OF EXERCISES FOR INTERCULTURAL COMMUNICATION COMPETENCIES DEVELOPMENT OF FOREIGN STUDENTS
Purpose. To analyze the issues of designing of the system of exercises to develop intercultural competencies of foreign students during the Ukrainian language training. Findings. Specific features of the system of exerci...
TECHNOLOGY FOR OBTAINING CARBON MATERIAL WITH OPTIMAL PORE SIZE DISTRIBUTION FOR SUPERCAPACITOR ELECTRODES
Purpose. To find the optimal ratio between the pore sizes of the activated carbon material from which the electrodes are made and the size of the ions of the organic electrolyte, which allows obtaining the maximum capac...
INTEGRATION OF THE SOCIAL DIALOGUE INTO THE REGIONAL ECONOMIC RELATIONS SYSTEM
Purpose. To define the integration features of social dialogue into the system of economic and social-labour relations at the regional level. Methodology. To achieve the goal in the research process, the following method...
ACTUAL PROBLEMS OF FUTURE DESIGNERS PROFESSIONAL PREPARATION IN HIGHER EDUCATION STAFF
Purpose. To analyze the current state of development of the problem of future designers’ professional training by the scientific and pedagogical discourse. Methodology. Synthesis, comparison, concretization, systematizat...
RISKS ANALISYS AND MANAGEMENT OF WATER ECOSYSTEMS
Purpose. The functioning of the water ecosystem management system is characterized by the lack of a systematic approach to the analysis of the state of natural reservoirs, as well as the accurate and operative measuremen...