Theoretical research into spatial work of a steel-reinforced-concrete statically indeterminate combined structure
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 5, Issue 7
Abstract
<p>The constructed mathematical model and the developed algorithm for spatial calculation of combined steel-reinforced-concrete truss systems make it possible to determine parameters of the stressed-strained state in the structures' elements. It is proven that the built mathematical model satisfies three groups of conditions: equilibrium; compatibility of deformations that link deformations and displacements; physical conditions that link efforts and deformations. Owing to the devised procedure, we performed theoretical calculations to establish the actual diagrams "bending moment ‒ deflection", "longitudinal force ‒ deflection" depending on the magnitude and place of application of external load. The derived equalities that determine coefficients for the unknowns in a system of linear algebraic equations include the topology parameters and strength characteristics of the structures' elements. That has allowed us to search, within the framework of the developed algorithm, for a minimum of the objective function of the equally-stressed state in the elements of a spatial structure.</p>We investigated theoretically the strength and deformability of truss steel reinforced concrete structures for symmetrical and asymmetrical loads, taking into consideration the phased operation of the system. Employing an iterative search for a minimum of the objective function of the equally-stressed state at cross sections of the spatial structure's elements has helped establish a decrease in the normal stresses compared to the structures of other type. The results obtained made it possible to design actual construction structures. Therefore, there is reason to assert the practical significance of the constructed mathematical model and the developed algorithm, which were applied when designing the new, and recalculating existing, combined steel-reinforced-concrete truss systems
Authors and Affiliations
Ivan Ivanyk, Svitlana Vikhot, Yuriy Vybranets
Keywords
Related Articles
- EP ID EP528193
- DOI 10.15587/1729-4061.2018.143023
- Views 67
- Downloads 0
Development of the gearless electric drive for the elevator lifting mechanism
<p>A technical analysis of the requirements for drive motors and rope driving pulleys of gearless elevator winches was performed. The possibility of application of the developed slow-moving electric motor of the bi-induc...
Development of methods to improve noise immunity in the fifthgeneration mobile networks based on multiposition signals
<p>We have examined technologies for building 5 G mobile networks, which should provide for the creation of ultradense networks in order to render high-quality services. A formalized statement of the problem on synthesis...
Development of the method for structural-parametric optimization in order to improve the efficiency of transition processes in periodic systems
<p>In order to get the most out of the enterprise’s operational processes, the operational processes of functional systems are optimized. However, in the process of optimization, controlled systems over a significant amo...
Optimization of water-heat treatment when making flour from ancient wheat
<p>Recommendations for processing spelt wheat into high and first grade flour were developed. The studies of the influence of parameters of water-heat treatment on the yield of flour from spelt wheat grain, its whiteness...
Modeling an intelligent system for the estimation of technical state of construction structures
<p>The study investigates issues related to modeling and development of intelligent systems for estimation of the technical state of building constructions. The study considers mathematical bases of modeling of an estima...