INNOVATIVE TECHNOLOGY OF INSTALLATION OF HINGED VENTILATED FACADES FOR CIVIL CONSTRUCTION

Vestnik MGSU 9/2017 Volume 12
  • Afanasyev Aleksander Alekseevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Corresponding Member of Russian Academy of Architecture and Building Sciences, Honored Worker of the Higher School of Russia, Honored Worker of Higher Professional Education of the Russian Federation, Honored Builder of the Moscow Region, Department of Technology and Management of the Construction, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Zhunin Andrey Alekseevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate student, Department of Technology and Management of the Construction, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 981-989

Subject: the methods of optimization of organizational-technological and design solutions for installation of energy-efficient enclosing structures are described in the article. The results of research on the development of hinged ventilated facade systems with the use of factory technology are given. A comprehensive analysis of domestic and foreign facade systems, together with the technology for production of works on their installation, has been carried out; their operating properties have been studied. The main design and technological solutions for manufacturing and installation of facade panels on the construction site, the features of the mechanization tools used, control of work quality and reliability of the system are presented. The system for manufacturing ventilated facades with high manufacturing readiness level and a wide range of applications is developed on the basis of theoretical and design solutions. The use of this technology in monolithic and large-panel housing construction significantly reduces labor intensity and cost of work. The core of the research was the use of methods for reducing labor costs during installation of energy-efficient ventilated facades and improving the quality control of installation work by developing new design and technological solutions. Goals: the aim of the research is to develop an industrial technology for installation of energy-efficient enclosing structures by optimizing production processes during manufacturing and installation of facade systems by the method of aggregate assembly. Materials and methods: the basis of the proposed method is the technology for manufacturing reinforced concrete enclosing elements of a width equal to the axial dimension between the inner bearing walls. Several types of panels with window and door apertures (for loggias and balconies), and also bay windows, have been developed. Results: the comprehensive studies have shown that the use of factory-made ventilated facade panels allows us to reduce the labor intensity of work by 4-6 times with the provision of high quality facade works. Technologies for production of works on installation of enclosing structures, arrangement of a construction site and workplaces that meet the requirements of Federal Laws No. 384-FZ and No. 123-FZ have been developed. The design solution of the developed façade system takes into account the requirements of GOST 11024-2012 and GOST 13015-2012, and also the requirements of certified albums of technical solutions for arrangement of elements of the subsystem and insulation. In accordance with the current building codes and data, obtained experimentally and analytically, and also by regression analysis, trend lines for the dependence of specific labor costs and work production costs have been obtained. Conclusions: the developed design and technological solution for mounting hinged ventilated facades is relevant both to monolithic and large-panel housing construction. Further development and identification of the most rational organizational and technological solutions for installation of energy-efficient enclosing structures will be able to affect the reduction in duration of residential building construction.

DOI: 10.22227/1997-0935.2017.9.981-989

Download

METHODS TO IMPROVE ENERGY EFFICIENCY OF BUILDINGS DURING RECONSTRUCTION

Vestnik MGSU 7/2018 Volume 13
  • Leonova Anna Nikolaevna - Kuban State Technological University (KubGTU) andidate of technical sciences, the associate professor, Kuban State Technological University (KubGTU), 2 Moskovskaya st., Krasnodar, 350072, Russian Federation.
  • Kurochka Maria Vyacheslavovna - Kuban State Technological University (KubGTU) student, Kuban State Technological University (KubGTU), 2 Moskovskaya st., Krasnodar, 350072, Russian Federation.

Pages 805-813

Subject: introduction of energy-efficient materials and decisions in the field of reconstruction is the factor influencing the reduction of heat losses. Use of such materials and decisions leads to considerable economy and improvement of heat insulation properties of the building. Research objectives: establish efficiency of application of methods of passive and active protection of buildings against heat losses and increase of energy-saving during reconstruction. Materials and methods: theoretical and methodological basis of the research was the scientific work of domestic and foreign scientists on the issues of energy efficiency management and introduction of energy-saving technologies at capital construction facilities and educational institutions. General scientific research methods (analysis, synthesis, generalization), comparison method, classification method were used during the research. Detailed thermograms of buildings, thermal imaging examinations, and monitoring of microclimate parameters were used. Results: modern approaches to the problem of energy-saving and provision of comfortable living conditions are investigated. The analysis of the use of active and passive methods to improve energy efficiency of buildings is carried out. Conclusions: improving the energy efficiency of buildings during reconstruction must be addressed comprehensively, taking into account measures aimed at increasing the effect of fuel and energy resource consumption.

DOI: 10.22227/1997-0935.2018.7.805-813

Download

Features of operation of sewage pumping stations of heat and power stations in in conditions the Far North

Vestnik MGSU 3/2019 Volume 14
  • Dement’eva Мarina Е. - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor of Department of Housing and Communal Services, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Kurokhtin Аrtem А. - Moscow State University of Civil Engineering (National Research University) (MGSU) student, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 356-366

Introduction. The subject of the study is the study of technologies to ensure the reliability of sewage pumping stations (SPS), exploited in the Far North. One of the most important problems is the freezing of water in the SPS tanks, associated with the incorrect selection of the insulation of the SPS of new TPPs, as well as the deterioration of the insulation of the SPS under the influence of aggressive media on the old TPPs. As a solution, the article considers two main methods of internal heating: liquid and electric. Both methods were analyzed using the example of the Yakutsk State District Power Plant-2, where the disruption of the drainage system may lead to a station shutdown. Materials and methods. The purpose of the study was a comparative analysis and selection on the basis of a feasibility study of the most reliable method of heating the pumping unit of the Yakutsk State District Power Plant-2, exposed to low temperatures and, as a consequence, the freezing of wastewater in tanks. On the basis of field surveys and the processing of their results using mathematical statistics, the causes of the problem of water freezing in the SPS units at Yakutsk State District Power Plant-2 were studied and analyzed. Technological characteristics of the installed SPS were also analyzed, heat engineering calculations were performed, economic indicators were calculated, and further solutions to the problem under consideration were determined. Results. Analysis of the technical parameters and configuration of the SPS showed that the installed insulation and the heating system do not correspond to the territorial conditions in which this equipment is installed. To bring the SPS into working condition, two solutions for internal heating of tanks were developed and their comparative analysis was performed. Selected heating option with heating cable. This system has been successfully implemented and is operating normally. Conclusions. The results of the work can be used to repair thermal insulation and install a heating system for industrial pumping stations without using earthworks in the conditions of the Far North and on the territory of permafrost soils.

DOI: 10.22227/1997-0935.2019.3.356-366

Download

Results 1 - 3 of 3