DATABASE MODEL FORMATION FOR IMPROVING THE ORGANIZATIONAL AND TECHNOLOGICAL RELIABILITY OF MONOLITHIC CONSTRUCTION

Vestnik MGSU 9/2017 Volume 12
  • Bolotova Alina Sergeevna - Moscow State University of Civil Engineering (National Research University) (MGSU) Assistant, Department of Information Systems, Technology and Automation in Construction, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 1061-1069

This article describes the scientific model information database of defects and irregularities identified in the organization of work in monolithic construction. Monolithic construction is a production system that consists of a number of random events. For each event a significant number of random factors are affected. The author examines and analyzes the characteristics of the technical failures that affect the organizational and technological reliability of building. Use of information technology makes it possible to calculate various indicators of operational efficiency of the process of detection and elimination of defects and failures of the production system. An important criterion in the process of sustainable development is the organizational and technological reliability (OTR), which describes the capabilities of the system to achieve the goal. The author generalized and systematized the available data. The author concludes that it is necessary to develop such organizational and technological solutions that will perform the work in a timely manner, with the required quality, without prejudice to the OTR of monolithic construction. Topicality of the article is due to the need in analysis of the organization of construction works and evaluation of the system of building control in the construction of monolithic reinforced concrete structures, with the aim of preventing the emergence of potential defects and irregularities in monolithic construction. Specialists in the field of risk analysis and assessment, experts and insurance companies, and organizations conducting the assessment can use the technique. Subject: organizational and technological reliability as a criterion for the quality of organization of monolithic construction, which affects the duration of work. Analysis of the interrelations between the index of OTR and technological defects and deviations in the production process by forming a database model has not been studied in detail until now. Materials and methods: for developing a technique for increasing the OTR, a general description of the object, its purpose and functions are presented. The indicators of the quality of the object and the characteristics affecting it are formed into an information database. Further, the parameters of factors and the range of their changes at which the normal functioning of the object is ensured are established. Results: using the method of expert assessments, the influence of the occurrence of certain undesirable events (failures) was quantified and the impact of these events on the achievement of the project objectives (duration of construction, cost, project quality) was assessed. The results of the analysis allow us to quickly assess the criticality of the violations identified, perform their ranking, and make corrective actions in the organization of production. The information presented in the database helps to quickly find the optimal technological solution that positively affects the time-saving. Conclusions: conducted analysis led to the conclusion that it is desirable to use the characteristics of the OTR of monolithic construction for the purposes of improving the quality of production processes and provided the information and the scientific basis necessary for improving the organization of production in civil engineering.

DOI: 10.22227/1997-0935.2017.9.1061-1069

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Monolithic construction in the Republic of Bashkortostan: from theory to practice

Vestnik MGSU 10/2013
  • Bedov Anatoliy Ivanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Professor, Department of Reinforced Concrete and Masonry Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Babkov Vadim Vasil’evich - Ufa State Petroleum Technological University (UGNTU) Doctor of Technical Sciences, Professor, Department of Building Structures, Ufa State Petroleum Technological University (UGNTU), Office 225, 195 Mendeleeva St., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Gabitov Azat Ismagilovich - Ufa State Petroleum Technological University (USPTU) Doctor of Technical Sciences, Professor, Department of Building Structures, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sakhibgareev Rinat Rashidovich - Ufa State Petroleum Technological University (UGNTU) Doctor of Technical Sciences, Associate Professor, Department of Building Structures, Ufa State Petroleum Technological University (UGNTU), Office 225, 195 Mendeleeva St., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Salov Aleksandr Sergeevich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 110-121

In the article the dependences of concrete compression strength from fluidity of concrete and water cementitious ratio for non-modified and modified concrete with superplasticizing and organo-mineral admixtures are cited and analyzed. The problems of application efficiency assessment of concrete and reinforcing steel of high classes of strength in reinforced concrete elements are examined. Calculating algorithms are presented with the use of an economic-mathematical method, which allow to improve calculation and designing of a monolithic reinforced concrete framework. Results of the researches are applied in the process of designing some objects in Ufa. The article presents design solutions using concrete and reinforcing steel of higher strength classes.The co-authors present the generalizing approach to the solution of the problems of optimized application of high-strength concrete and efficient armature classes in bendable ferroconcrete elements. The decision is made by the criteria of reducing reinforced concrete and concrete consumption.The methods of analysis offered and developed by the authors are widely used in the Republic of Bashkortostan and allow to reveal effective fields of application of the effective classes of concrete and reinforcement steel in reinforced concrete elements with evaluating expediency at the design stage and in order to estimate their efficiency. That is especially important in the process of choosing modified concrete and modern steel for building frame and monolithic structures.

DOI: 10.22227/1997-0935.2013.10.110-121

References
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  8. Bedov A.I., Babkov V.V., Gabitov A.I., Salov A.S. Ispol'zovanie betonov i armatury povyshennoy prochnosti v proektirovanii sbornykh i monolitnykh zhelezobetonnykh konstruktsiy [Use of Heavy Duty Concretes and Reinforcement in Design of Prefabricated and Monolithic Reinforced Concrete Structures]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 8, pp. 76—84.
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  10. Eksperimental'nye issledovaniya prostranstvennoy raboty stalezhelezobetonnykh konstruktsiy [Experimental Research of Three-dimensional Performance of Composite Steel and Concrete Structures]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 12, pp. 53—60.
  11. Ses'kin I.E., Baranov A.S. Vliyanie superplastifikatora S-3 na formirovanie prochnosti pressovannogo betona [Influence of Superplasticizer C-3 on the Formation of the Pressed Concrete Strength]. Stroitel'nye materialy [Building materials]. 2013, no. 1, pp. 32—33.
  12. Bazhenov Yu.M., Lukuttsova N.P., Karpikov E.G. Melkozernistyy beton, modifitsirovannyy kompleksnoy mikrodispersnoy dobavkoy [Fine-grained Concrete Modified by Integrated Mikro-dispersive Additive]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 2, pp. 94—100.
  13. Andreev V.I., Barmenkova E.V. Raschet dvukhsloynoy plity na uprugom osnovanii s uchetom sobstvennogo vesa [Calculation of a Two-layer Slab Bending on an Elastic Basis with Consideration of Dead Weight]. Computational Civil and Structural Engineering. 2010, vol. 6, no. 1—2, pp. 33—38.
  14. Panibratov Yu.P., Seko E.V., Balberov A.A. Ekonomicheskaya otsenka rezul'tatov energosberegayushchikh meropriyatiy v stroitel'stve [Economic Evaluation of Energy Saving Measures in Construction]. Academia. Arkhitektura i stroitel'stvo [Architecture and Construction]. 2012, no. 2, pp. 123—127.

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Optimization of process organization in monolithic construction

Vestnik MGSU 10/2013
  • Adamtsevich Aleksey Olegovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, head, Principal Regional Center of Collective Use of Scientific Institute of Construction Materials and Technologies, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 656-14-66; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pustovgar Andrey Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Director, Research and Scientific Institute for Construction Materials and Technologies, Professor, Department of Construction of Nuclear Installations, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 242-248

Nowadays in Russian Federation there is a growing demand for monolithic construction. Monolithic construction technology is developing to meet the requirements, such as reduction of construction time and improvement of the quality of the structures. Analysis of different situations that arise on construction sites shows a number of usual problems: increased construction period, increased cost, etc.Possible reason of this problem can be in using outdated approaches to the control of monolithic construction processes. Such approaches do not take into account deviations due to the abrupt changes caused by external influence of the environment. And it can lead to increase in technological expectations or increase in labor costs for eliminating these deviations. This article presents an approach, which helps to increase the efficiency of process organization in monolithic construction by means of adaptive control and operative control in real time. This approach is based on the methods of operative monitoring and processing of information about the state of the production system at any given time. In this paper organizational scheme for combining different production and control processes was developed, which is based on the following principles: Choice of criteria for comprehensive assessment of a production system, that reflect both internal state and external disturbances; Development of the methods and means of operational monitoring of the structures(includes previously selected criteria); Development of the methods of constructing situation models of the production system functioning (including modeling the hydration process of concrete and the influence of external factors on this process).Development of the methods of research and information decision support based on automated processing of information, obtained in the course of monitoring, and on the analysis of available options of controlling actions.

DOI: 10.22227/1997-0935.2013.10.242-248

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  2. Telichenko V.I., editor Stroitel'stvo i rekonstruktsiya zdaniy i sooruzheniy gorodskoy infrastruktury. Tom 1. Organizatsiya i tekhnologiya stroitel'stva [Construction and Reconstruction of Buildings and Structures of Urban Infrastructure. Vol. 1. Organization and Technology of Construction]. Moscow, ASV Publ., 2009, 520 p.
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  5. Ambartsumyan S.A., Martirosyan A.S., Galumyan A.V. Normy vypolneniya opalubochnykh rabot pri skorostnom monolitnom domostroenii [The Norms of Formwork Operations in High-speed Monolithic Housing Construction]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2009, no. 2, pp. 39—41.
  6. Volkov A.A. Kompleksnaya bezopasnost' uslovno-abstraktnykh ob"ektov (zdaniy i sooruzheniy) v usloviyakh chrezvychaynykh situatsiy [Integrated Safety of Conditionally Abstract Objects (Buildings and Structures) in Emergency Situations]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2007, no. 3, pp. 30—35.
  7. Volkov A.A. Osnovy gomeostatiki zdaniy i sooruzheniy [Fundamentals of Homeostatic Buildings and Structures]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and civil Engineering]. 2002, no. 1, pp. 34—35.
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  12. Volkov A.A. Ierarkhii predstavleniya energeticheskikh sistem [Hierarchies of Description of Energy Systems]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 1, pp. 190—193.
  13. Volkov A.A., Pikhterev D.V. K voprosu ob organizatsii informatsionnogo obespecheniya stroitel'nogo ob"ekta [On the Issue of Arrangement of Information Support of a Construction Facility]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 6, pp. 460—462.

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