Vol 11, No 7 (2023)
- Year: 2023
- Published: 12.07.2023
- Articles: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/17511
Full Issue
Investigation of stress-strain state of structures of a high-rise monolithic building taking into account nonlinear properties of reinforced concrete
Abstract
This article presents a comparative analysis of the results of calculating the structures of a high-rise monolithic building taking into account the nonlinear properties of reinforced concrete. The formation of a model of a constructive system and calculations are performed in a MONOMAKH-CAD PC.
Information modeling and design of a multistory residential building using Russian software
Abstract
The formation of an information model of a multistory residential building in the Renga BIM system was carried out. The model was exported and the structural system of the building was calculated in the Lira 10.12 PC. The results of modeling and design are presented.
Economic justification of expediency applications of vacuum thermal insulation in enclosing structures of residential buildings
Abstract
The article analyzes the use of vacuum thermal insulation panels (VIP- panels) developed on the basis of local raw materials. The calculation of the heat transfer resistance of the enclosing structures of a residential building is given. The designs of a multistory residential building are shown taking into account the effective thickness of vacuum insulation.
Problems of introducing information modeling methods in Russia
Abstract
The article discusses the basic principles and problems of introducing information modeling technologies in Russia along with the possibilities and prospects for the use of information technologies in industrial and civil construction. An overview of real experience in implementing BIM design technology is provided.
The relevance of the application of predictive calculations of structures based on numerical modeling of the composite structure
Abstract
The article provides an overview of numerical simulation programs based on the finite element method. An example of the practical application of the FreeCAD program for preliminary calculations in order to determine the overvoltage zones in a glue-wood composite and the results of testing samples with a gradient structure designed according to the results of the calculations are given.
Vacuum-powder thermal insulation of thermal containers
Abstract
The use of vacuum thermal insulation panels (VIP-panels) to create highly efficient thin-walled thermal insulation in thermal containers is considered. The efficiency of using fine filler in vacuum thermal insulation is shown, a diagram of the main structural elements is presented. The maximum temperature control time is determined under certain operating conditions of the material. It has been experimentally proved that the developed thermal container is not inferior in characteristics to similar products.
An overview of Russian and International experience in the development of building materials with photocatalytic effect
Abstract
Two main directions of the development of building materials with a photocatalytic effect are considered. These are compositions of coatings with a self-cleaning effect and modification of existing materials by introducing photocatalysts into their composition. The paper gives examples of the use of various types of photocatalysts in the development of materials characterized by the effect of self-cleaning and examples of their real life implementation.
Integration of Autodesk Revit 2022 with SP Lira 10.12
Abstract
The formation of an information model of a multistory residential building with a frame structural system in Autodesk Revit 2022 was carried out. The technological sequence for creating the model was determined. An analytical model is obtained. Exported to SP LIRA 10.12. The results of the model exporting are presented.
Influence of humidity state on changes in the properties of polymer materials
Abstract
The paper studies the influence of the moisture state on the elastic-strength parameters and kinetics of damage accumulation in the structure of epoxy polymer samples based on Etal-247 resin and Etal-45TZ2 hardener. Damage accumulation process is quantitatively described based on the author's technique determining the position of critical points on deformation curves of polymer materials using fractal analysis methods. has been established that an increase in the moisture content of a polymer material makes it possible to achieve, under tensile loads, formation of a pronounced stage of forced highly elastic deformations. We have revealed a decrease in the ultimate tensile strength and an increase in the relative elongation at break for moisture-saturated specimens compared to the polymer in the equilibrium-moisture state, by 5,3 and 5,4 times, respectively. It was found that at the ultimate moisture saturation, the rate of failure accumulation accelerates with an increase in the level of applied stress at strain compared to the samples in the equilibrium-moisture state, by 4,3-5,5 times.