scholarly journals Comprehensive Restoration of the Normative Technical Condition of Expanded Clay Concrete Panels of Industrial Buildings with Moral and Physical Wear

2020 ◽  
Vol 23 (6) ◽  
pp. 77-89
Author(s):  
S. V. Dubrakov ◽  
A. V. Masalov ◽  
I. V. Zavalishin
Keyword(s):  
Thermal Characteristics ◽  
Technical Condition ◽  
Building Envelope ◽  
Technical Solution ◽  
Building Structures ◽  
Infrastructure Development ◽  
Proper Position ◽  
Building Envelopes ◽  
Industrial Buildings ◽  
Engineering Survey

Purpose of reseach is  determining the category of technical condition of building structures to assess the residual resource and service life of industrial facilities and urban infrastructure. Development of a fundamental technical solution to the problem of comprehensive restoration of a workable technical condition of building envelopes, including the provision of mechanical and heat engineering requirements.Methods. According to the current regulatory requirements for buildings put into operation, it is necessary to conduct an engineering survey at least once every 10 years. During the engineering survey of the building located at Kursk region, Kurchatovsky district, K. Libknekhta village, ul. Mira 1, significant defects and damages affecting the technical condition of the building envelope were revealed.Results. According to the results of studies, some factors were identified that need to be eliminated. The ways of solving the identified problems and defects associated with the building envelope are given and described in detail to restore the building to its proper position.Conclusion. When conducting surveys of building structures of buildings and structures, it is necessary to pay attention not only to strengthening building structures, but also to restoring the thermal characteristics of building envelopes and bringing them into line with the requirements of current regulatory documents. To accomplish this task, a reinforcement design has been developed that creates the necessary reinforcement and brings the thermal characteristics of the building envelope in line with modern requirements to ensure the necessary energy efficiency of the building envelope. 

scholarly journals Application of monolithic foam concrete in building envelopes of a cottage, used in conditions of intermittent heating

2018 ◽  
Vol 196 ◽  
pp. 04015 ◽  
Author(s):  
Yuri Vytchikov ◽  
Mikhail Saparev ◽  
Vladislav Golikov
Keyword(s):  
Specific Energy Consumption ◽  
Thermal Characteristics ◽  
Outer Wall ◽  
Heating Time ◽  
Review Literature ◽  
Building Envelope ◽  
Foam Concrete ◽  
Building Envelopes ◽  
Insulating Layer ◽  
Intermittent Heating

The paper focuses upon the peculiarities of application of monolithic foam concrete as a heat-insulating layer in building envelopes of houses used in conditions of intermittent heating. The researchers analyze thermal characteristics, review literature describing the application of foam concrete in construction and demonstrate this material applicability at outer walls insulating, taking buildings and constructions with variable thermal behaviour as an example. The paper outlines main criteria that building envelopes of such structures should meet. To assess the effectiveness of monolithic foam concrete in building envelopes application, the authors carried out thermo-technical calculation of the outer walls, insulated with monolithic foam concrete. The graphs of dependence of multilayer building envelope heating time upon thickness of a heat-insulating layer and upon heat transmission resistance of the construction was obtained on the basis of these calculations. The dependence of specific energy consumption upon the heating time is also given in the paper. The study reveals the optimal range of thickness and density of monolithic foam concrete for insulating outer walls of buildings, used in in conditions of intermittent heating. This calculation also proves that the application of foam concrete as an insulant on the inside of the outer wall makes it possible to reduce the load on the building foundation.

scholarly journals FORECASTING OF THE RESIDUAL LIFE OF METAL BEAMS SUB-CRANE OF INDUSTRIAL BUILDINGS OF LONG SERVICE LIFE

2021 ◽  
Vol 6 (10) ◽  
pp. 8-16
Author(s):  
V. Markeev ◽  
P. Borkov
Keyword(s):  
Bearing Capacity ◽  
Residual Life ◽  
Technical Condition ◽  
Industrial Safety ◽  
Partial Replacement ◽  
Building Structures ◽  
Technical Documentation ◽  
Industrial Buildings ◽  
Wear And Tear ◽  
Duration Of Operation

The article discusses the main reasons for the physical wear and tear of metal crane beams of industrial buildings at hazardous production facilities. The analysis of the existing methods for determining the physical wear and the residual life of various structures, as well as regulatory and technical documentation, regulating the issue of conducting inspections of structures and the appointment of the technical condition of structures is carried out. The analysis of characteristic defects and damages of welded crane beams and an analysis of their influence on the bearing capacity is made. The dependence of the amount of physical wear and tear on the duration of operation of crane girders has been investigated. A method is proposed for determining the physical wear and tear of individual structures on the basis of their effect on the bearing capacity of the structure and their operational characteristics, based on the existing methods for determining the physical wear of structures of non-industrial buildings. A method is proposed for determining the residual life of metal structures by the Poisson method, depending on the degree of physical wear and the duration of operation. The use of this technique provides more accurately approach the determination of the residual life of building structures when conducting an industrial safety examination. Based on these data, it is more reasonable to approach the reconstruction, strengthening or overhaul of existing structures, as well as their complete or partial replacement.

Influence Analysis of Cold Formed Steel Members on Thermal Characteristics of Building Envelopes

2014 ◽  
Vol 670-671 ◽  
pp. 466-473 ◽  
Author(s):  
Galina Kashevarova ◽  
Pavel Kosykh
Keyword(s):  
Thermal Characteristics ◽  
Internal Surface ◽  
Building Envelope ◽  
Building Envelopes ◽  
Full Scale Experiment ◽  
Steel Members ◽  
Cold Formed Steel ◽  
Coefficient Of Uniformity ◽  
The Difference ◽  
Scale Experiment

The article in question presents the comparison of thermo-protective characteristics of building envelopes constructed on the basis of cold formed steel members according to the results of computer modeling, engineering methods and full-scale experiment. Two comparative parameters were chosen: the coefficient of uniformity and the difference in temperatures of the construction internal surface. The influence of various “input” parameters (thickness, insulation thermo conduction and etc.) on thermo-protective characteristics has been analyzed. The asymptotical character of connection between thermo resistance of non-uniform building envelope and insulation thermo conduction has been deduced.

scholarly journals RENOVATION OF ARCHITECTURE OBJECTS OF THE BRANCH OF COMMUNAL SERVICES

2021 ◽  
pp. 17-30
Author(s):  
Viktor Banakh ◽  
Yurii Yehorov ◽  
Oksana Sazonova ◽  
Andrii Banakh ◽  
Kateryna Arkhipova ◽  
...  
Keyword(s):  
Technical Condition ◽  
Building Structures ◽  
Industrial Buildings ◽  
Design Documentation ◽  
Industrial Architecture ◽  
Project Construction ◽  
Long Time ◽  
Speed Up ◽  
Complicating Factors ◽  
Technical Solutions

The analysis of the results of the examination of the technical condition of buildings and structures of enterprises in the sphere of public utilities has been carried out. The basic principles and methods of functional and technological renovation of architectural objects are revealed, accompanied by the transformation of the architectural space and planning schemes of industrial buildings and structures. A number of architectural and structural studies have been carried out in the direction of finding optimal technical solutions for repair, restoration of operational ability and reconstruction of industrial architecture objects in the field of public services for the purpose of their renovation. Technical reports based on the results of technical condition survey of building constructions of buildings and structures exploited for a long time, especially if there were long breaks in exploitation and maintenance, should include a section “Activities to renovate the object”. There is a need to adjust the regulatory framework for design and construction in order to speed up the process of “survey – renovation project – construction of the object”, as well as to restore and improve the base of the construction industry for the implementation of renovation projects. Complicating factors in the process of developing renovation projects of buildings and structures are the lack of design documentation for most facilities, lack of quality certificates for building structures and materials of buildings and structures, the long process from technical inspection to implementation of working design documentation, lack of interest of city authorities in development and renovation of service facilities. 

scholarly journals DEFECTS AND DAMAGES OF METAL COLUMNS OF INDUSTRIAL BUILDINGS

2021 ◽  
Vol 9 (2) ◽  
pp. 11-15
Author(s):  
Sergej Evtushenko ◽  
Timofey Krakhmalnyy
Keyword(s):  
Reinforced Concrete ◽  
Defect Formation ◽  
Concrete Columns ◽  
Technical Condition ◽  
Rail Transport ◽  
Automated System ◽  
Building Structures ◽  
Transport Equipment ◽  
Reinforced Concrete Columns ◽  
Industrial Buildings

This article is a continuation of the series of articles by the authors about the characteristic defects and damage to the building structures of industrial buildings. In earlier articles, there were descriptions of defects in ground foundations, damage to foundations, as well as arti-cles about damage to reinforced concrete columns and facades. The article presents a sys-tematization of defects and damage to metal columns of industrial buildings, based on the analysis of the results of the survey of many objects. The possible consequences of the de-velopment of the identified defects and damages are described. Recommendations for the assessment of the technical condition of damaged structures and recommendations for the elimination of identified defects and damage are given. The unique damages associated with the operation of lifting and transport equipment, road and rail transport are also given. The article concludes with an analysis of the characteristic zones of defect formation in the met-al columns of buildings for the created automated system for monitoring the state of indus-trial facilities.

scholarly journals Geotechnical investigation in analysis The possibility of reconstruction of buildings on the example of buildings studios on krasnoarmeyskaya street. 94 / Ostrovsky str. 92 in Rostov-on-Don.

10.12737/5680 ◽  
2014 ◽  
Vol 2 (2) ◽  
pp. 96-99
Author(s):  
Игнат Субботин ◽  
Ignat Subbotin ◽  
Виталий Субботин ◽  
Vitaliy Subbotin ◽  
Анатолий Субботин ◽  
...  
Keyword(s):  
Technical Condition ◽  
Building Envelope ◽  
Actual State ◽  
Building Structures ◽  
Geotechnical Investigation ◽  
Safe Operation ◽  
Geotechnical Monitoring ◽  
Red Army ◽  
Geotechnical Studies

This article focuses on the role of geotechnical studies in the analysis of the possibility of reconstruction of buildings and structures. Geotechnical monitoring - a range of activities in order to determine the actual state of supporting and building envelope building when reconstruction or repair. This set of measures to control, testing and evaluation of the technical state of con-constructions, holding that due to the need to determine their performance, identify defects and their causes, forecasting further safe operation of buildings and structures. Based on the survey data and of engineering and geological studies, experts can make decisions about the possibility of redevelopment of the building, its possible add-ins, or simply strengthen building structures for the continued safe operation of the facility. This article describes the complex geotechnical studies on the example of building a film studio on the street. Red Army, 94 / str. Ostrowski, 92 in Rostov-on-Don. According to the results of the survey were identified and described the characteristic defects and describes their causes. Made The analysis of the technical condition of the building and the possibility of its reconstruction.

scholarly journals Solar Chimney Applications in Buildings

Encyclopedia ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 409-422
Author(s):  
Haihua Zhang ◽  
Yao Tao ◽  
Long Shi
Keyword(s):  
Natural Ventilation ◽  
Energy System ◽  
Assisted Ventilation ◽  
Building Envelope ◽  
Building Structures ◽  
Solar Chimney ◽  
Climate Conditions ◽  
And Performance ◽  
Modern Building ◽  
Ventilation Systems

A solar chimney is a renewable energy system used to enhance the natural ventilation in a building based on solar and wind energy. It is one of the most representative solar-assisted passive ventilation systems attached to the building envelope. It performs exceptionally in enhancing natural ventilation and improving thermal comfort under certain climate conditions. The ventilation enhancement of solar chimneys has been widely studied numerically and experimentally. The assessment of solar chimney systems based on buoyancy ventilation relies heavily on the natural environment, experimental environment, and performance prediction methods, bringing great difficulties to quantitative analysis and parameterization research. With the increase in volume and complexity of modern building structures, current studies of solar chimneys have not yet obtained a unified design strategy and corresponding guidance. Meanwhile, combining a solar chimney with other passive ventilation systems has attracted much attention. The solar chimney-based integrated passive-assisted ventilation systems prolong the service life of an independent system and strengthen the ventilation ability for indoor cooling and heating. However, the progress is still slow regarding expanded applications and related research of solar chimneys in large volume and multi-layer buildings, and contradictory conclusions appear due to the inherent complexity of the system.

scholarly journals Experimental Study on the Thermal Behavior of Exterior Coating Textures of Building in Hot and Arid Climates

2021 ◽  
Vol 13 (8) ◽  
pp. 4175
Author(s):  
Islam Boukhelkhal ◽  
Fatiha Bourbia
Keyword(s):  
Energy Consumption ◽  
Surface Temperature ◽  
External Surface ◽  
Thermal Characteristics ◽  
Energy Performance ◽  
Building Envelope ◽  
Interior Space ◽  
Design Elements ◽  
Aesthetic Appearance ◽  
Reduction Of Energy Consumption

The building envelope is the barrier between the interior and exterior environments. It has many important functions, including protecting the interior space from the climatic variations through its envelope materials and design elements, as well as reduction of energy consumption and improving indoor thermal comfort. Furthermore, exterior building sidings, in addition to their aesthetic appearance, can have useful textures for reducing solar gains and providing good thermal insulation performance. This research examined and evaluated the effect of external siding texture and geometry on energy performance. For this objective, a field in situ testing and investigation of surface temperature was carried out on four samples (test boxes) with different exterior textures and different orientations, under the climate zone of Constantine–Algeria during the summer period. The results indicated significant dependability between the exterior texture geometry, the percentage of shadow projected, and external surface temperature. The second part of the research involved a similar approach, exploring the effect of three types of particles with the same appearance but with different thermal characteristics. It was concluded that the natural plant aggregates “palm particles” had the best performance, which contributed to a significant reduction of external surface temperature reaching 4.3 °C, which meant decreasing the energy consumption.

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