The simulation of the pulsating component of the wind load on the reinforced concrete skeleton of the building by the finite element method is considered in the article. The calculation of the pulsation component of the wind load was carried out according to the procedure specified in SP20.13330.2011 "Loads and Impacts" and calculation of the pulsating component of the wind load in accordance with the recommendations of CNIISK them. Kucherenko. Based on the results of the calculations, the analysis of the results obtained and conclusions are made.

Keywords: finite element method, design scheme, vibration modes, pulsating component of wind load, building frame

A finite-element model of a high-rise monolithic frame building has been developed, with the calculation of the bearing capacity of the main structural elements in the course of progressive destruction. The influence of introduction of the outrigger floors in the structural scheme is investigated.

Keywords: Finite element model, outrigger floor, progressive destruction, bearing capacity, reinforced concrete, frame, structural element

Разработан вариант рационального проектного решения торгового комплекса «Золотой» в г. Ростове-на-Дону путем замены конструкции покрытия для увеличения шага колонн 2 этажа. Исследование напряженно-деформированного состояние элементов каркаса здания методом конечных элементов. Для оптимизации проектных решений здания торгового комплекса выполнен сравнительный расчет конструктивных схем структурных покрытий типов «Кисловодск» и «БрГТУ». Даны рекомендации по конструктивным решениям покрытия каркаса здания.

Keywords: finite element method, finite element, structural coverage, the design load combination, section, design scheme

The subject of this article is the regulation of stress - strain state in the elements of a structural coating of a unique building of technical Museum. The architectural solution of the object is made in the shape of an airplane, which the fuselage is formed by a vaulted covering with a span of 30 m, and the wings are 38 m consoles. The system of main console trusses and links between them forms the construction of a wing. Several versions of the geometric diagrams of the basic console trusses are proposed. The optimum version of the geometric diagram of construction is selected according to the results of the static calculation. The analysis of the stress-strained state of structural coating with the different variants of the connections between the basic trusses is executed according to the results of calculations for the dynamic loads.

Keywords: the regulation of stress - strain state, geometric diagram, console, structural coating, finite element method, static calculation, dynamic loads

The paper presents a classification of two-dimensional as well as three-dimensional fractals, fractal characteristics, methods for modeling fractals. The algorithm of visualization fractals have used in the "3D simulation of fractals" software for the first time. The points’ generator module unites the points of space into a set of triangular finite elements in the environment of the computing complex SCAD. Complex fractal geometry have transformed into a spatial finite element model of the fractal.

Keywords: fractal, non-Euclidean geometry, fractal characteristics, two-dimensional fractals, three- dimensional fractals, 3D modeling fractal, energy of fractal, iterations of modeling fractals

The article presents the dynamic calculation of hemispherical shells cover the carcass of the building "Winter Garden" Technopark RSSU. Finite element model of the object and the calculation is made in the software package Lira-cad. Flexural-torsional oscillations was produced on the basis of modal analysis. The construction scheme is changed by increasing the hardness of the coating. The scheme receive a new kind of a framework element. Using the findings of the calculations the conclusions were drawn and given recommendations about changing the constructive scheme of the unique building.

Keywords: hemispherical shell , frame , dome, modal analysis , dynamic analysis , the spectrum of frequencies , mode shapes , finite element method

The research problem of this article is the unequal settling of a sports and recreation complex – the part of the Rostov State Building University's technopark –in a process of fiberwise soaking of subsoil. It describes the simulation of emergency soaking of foundation soil using ANSYS software. The paper presents an analysis of calculation results at different stages.

Keywords: unique building, unequal settling, subsidingsoil, emergency soaking, Finite element method.

The article presents the dynamic calculation of a unique building’s structure with spatial slab-bar scheme in the action of wind loads with the static and dynamic components of the wind load, using the finite element method. Simulation of the wind effect was produced on the basis of modal analysis. There were determined horizontal and vertical relocations of the node points. Using the findings of the calculations the conclusions were drawn and given recommendations about changing the constructive scheme of the unique building.

Keywords: unique building; wind load; modal analysis; pulsation component; a building’s structure; finite element method

A certainly-element model is worked out soil-fundamental flag-overhead structure. The tensely-deformed state of fundamental flag is investigational taking into account the models of Winkler and Pasternak. On results a calculation charts are got diagrams sinking of fundamental flag.

Keywords: certainly-element model, Winkler elastic foundation, Pasternak elastic foundation,, coefficient of subgrade resistance, sinking of fundamental flag, stress-strain state

The article examines the calculation of spherical shell coating on the overall stability under load. The calculated values of deformations in the vertical and horizontal plane. After the calculation of the conclusions and recommendations are given to conduct the necessary engineering activities to ensure the sustainability of the building.

Keywords: spherical shell; overall stability; arch farm; calculation of the building frame; finite element method

In article influence of various models of the soil base at calculation of the frame building of the hostel of RSUCE on functionality and operational characteristics of designs is considered. The final-element (FE) model of object is made and calculation in a program complex is executed. By results of calculation the analysis of the intense-deformed condition of the building and the basis is made. For research of influence of various models of the soil basis on the intense-deformed condition of the building models of the Pasternak and Vinkler and model taking into account a pliability of support are considered. The analysis found that the use of models taking into account the pliability of supports are more practical. This model allows the most accurate to see the interaction of building structures with elastic soil base and can be used in the real design.

Keywords: the core stiffness, the diaphragm stiffness, the structural design, the finite-element model, the stress-strain state, the base model, support yield, the coefficient of the bed, the intensity of reinforcing, orthotropy

Discusses the problems of transition from open to closed systems of connection of consumers to the heat network. On the basis of fundamental analysis of the advantages and disadvantages of the various connection schemes of buildings comparison of energy efficiency and reliability of open and closed systems of a heat supply. Basic conditions guaranteeing the possibility of the device of the closed heating systems in buildings, присоединненных to thermal networks on the open circuit. Shows the need for reconstruction of water supply systems and power supply of the building when it transferred from open to closed scheme accession to the heat network.

Keywords: heat supply, district heating, closed heat supply scheme, open circuit heat supply, individual heating unit, reliability of heat supply, energy efficiency.

Joining of heating systems to heat networks through dependent scheme for a low required pressure always causes with some difficulties in the selection of hydraulic elevator mixing. The article deals with the usage of a certain method of calculation with certain adjustments for a particular purpose of heating of a residential building. The calculated data can be compared with reference values from the specified literature. The method used is to be accepted with minimal required pressure (98÷118 kPa) before the elevator mixing.

Keywords: Hydraulic elevator, pressure differential, heating system, required pressure, law of energy conservation.