Vol 9, No 6 (2021)
- Year: 2021
- Published: 30.05.2021
- Articles: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/18299
Full Issue
Calculation of monolithic reinforced concrete slabs of high-rise residential complex taking into account physical nonlinearity
Abstract
The article presents the results of linear and nonlinear calculations of monolithic reinforced concrete floor slabs, obtained on the basis of a spatial model of the structural system of a high-rise residential complex. The formation of the model and general calculations by the finite element method were performed in the MONOMAKH-CAD software package.
Physico-mechanical properties of silica-based foam glass ceramics with high content of CaCO₃
Abstract
The features of obtaining porous glass-ceramic materials based on tripoli with a CaCO₃ content of more than 20% are described. Porous glass-ceramic materials with an average density of 255 to 290 kg/m³ and compressive strength of 3.2 to 5 MPa have been developed. In terms of compressive strength (with equal average density), the developed materials surpassed foam glass.
Modeling and research of stress-strain state of monolithic structural system of high-rise buildings with introduction of absolutely rigid bodies
Abstract
The article presents the results of modeling, calculation and research of the stress- strain state of a monolithic structural system of a high-rise building in the MONOMAKH-CAD software package. The results are analyzed with the introduction of absolutely rigid bodies in the simulation of conjugations of various types of finite elements.
X-ray phase and thermal analysis of zeolite-containing rocks of the Engalychevo manifestation of the Republic of Mordovia
Abstract
The results of the study of five types of zeolite-containing tripoli of the Engalychevsky manifestation of the Republic of Mordovia by X-ray fluorescence, X-ray phase and thermal analyzes are presented. Recommendations are given on the use of the studied siliceous rocks in the production of building materials.
Obtaining high-quality microsilica
Abstract
The methods of obtaining microsilica, widely used in various industries, are considered. Shortcomings of the methods and ways of their improving are revealed. For the synthesis of high-quality microsilica the authors suggest using concentrated nitric acid as a precipitator of silicic acid from an alkaline solution.
Innovative nuclear power stations
Abstract
This review presents some inventions in the field of nuclear power generation that are related to the creation of nuclear power stations, their configuration and security as well as the reduction of the consequences in various emergency situations or the prevention of these situations. All of the considered technical solutions and drawings are part of the inventions that have patents, which certify the novelty, exclusivity, authorship and priority of the inventions by the current legislation of the Russian Federation.
Problems of high-rise housing construction technologies with use of modern wooden structures
Abstract
The paper presents an analysis of modern wooden structures for high-rise buildings. The options for the implementation of projects using wooden and hybrid structures are considered. The current problems of construction of wooden high-rise buildings are discussed.
Modification of diatomite by complex processing
Abstract
This article describes the methods of modification of diatomite by heat treatment. The thermal conductivity of natural and modified diatomites is analyzed. Using the results of differential thermogravimetric analysis, the processes of changing the pore structure of the material under study under the influence of temperature are considered.