Alexander A. Bubis
Alexander A. Bubis

Alexander A. Bubis
deputy chief of Structures Earthquake Resistance Research Center of TSNIISK named after V.A.Kucherenko of JSC RCC. Moscow, Russian Federation


Publications

Discussion of the draft national standard: "Anti-seismic and seismically isolated construction design code. Design rules"
Issue:
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The article briefly shows the main provisions of the 1st edition of the
draft National standard: «Anti-Seismic and Seismically Isolated Construction
Design Code. Design rules». National standard is presented in the Russian
Federation Ministry of Construction. As a result of its using, on a voluntary
basis, compliance with the Federal Law «Technical regulation on safety of
buildings and structures» is provide. The draft National standard prepared EERC
TsNIISK of «Open Joint Stock Company - Research Center of Construction» in
accordance with the Technical task for the development of the document. The
draft National standard was developed 

About New Types of Reinforcing Rolled Metal for Earthquake Engineering
Issue: №6 2019
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As a result of the release of GOST 34028-2016 «Reinforcing bars for reinforced concrete structures» the manufacturability of new kinds of reinforcing bars, taking into account the needs of different areas of construction were increased. The materials of the present study prove the ability of reinforcement with a multi-row (six-row and screw four-row) arrangement of transverse ribs on its surface to maintain adhesion with concrete even at the stage of exceeding the limit values of deformation. This factor, as well as high endurance at cyclic dynamic effects, possibility of connection using couplings of four-row screw reinforcing bars and anchoring it with nuts, expands the possibilities of using the new valves not only in earthquake engineering, but also in nuclear power, transport and other types of construction. The new reinforcing bars of domestic production are able to gain a leading position not only in the domestic but also in foreign construction markets.

XIII Russian National Conference on Earthquake Engineering and Seismic Zoning (with International Participation) 16th World Conference on Seismic Isolation, Energy Dissipation and Regulation of Dynamic Characteristics of Structures
Issue: №4 2019
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About Requirements of New Normative Documents to Reinforcing of Reinforced Concrete Designs for Construction in Seismic Areas
Issue: №1 2019
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To meet the safety requirements in the design of reinforced concrete structures in seismically hazardous areas, it is important to ensure the dissipation of seismic input energy in structures when their progressive collapse is included. For this purpose, plastic deformation of the calculated sections of reinforced concrete structures with the opening of cracks in reinforced concrete is allowed much higher than the maximum permissible. These conditions can be met, when a number of design requirements are met. These requirements are reflected in regulatory documents for the design and manufacture of building structures and materials, including reinforcing bar. The article present a comparative analysis of the requirements that have recently been published at normative technical documents, namely the SP 14.13330 and the standard of the organization «Earthquake engineering», and also requirements of the state standard «Reinforcing bar for reinforced concrete design» in relation to design for seismically dangerous areas are stated and explained. So, as one of the possible options, the authors consider the advantages of using screw fittings, for connecting rods with screw fittings it is recommended to replace welded joints with screw couplings.

Project of Changes and Addendums Guide Lines SP 14.13330.2014 “Construction in Seismic Regions. SNiP II-7-81*” (first drafting)
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Experts of TSNIISK named after. V.A. Koucherenko JSC “RCC”, IPE RAS, АIIS and workgroup members have prepared and passed the first drafting project of changes and addendums SP 14.13330.2014 in FСS of the Ministry of Construction of the Russian Federation for accommodation on site for public discussion.

Full-Scale Dynamic Test for Seismic Stability Framework Universal Prefabrication Architectural and Construction System (FUPACS)
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The article presents the results of dynamic tests on earthquake resistance of full-scale fragment of building with seismic isolation. Tests performed by Laboratory of aseismic constructions and innovative methods of seismoprotection EERC TSNIISK Named After V. A. Koucherenko on fragment which manufactured by developers of construction system in Tomsk. Tests were carried out in the framework of research complex for development and launch production technology used for construction of 12 storey apartment buildings at sites with increased seismic activity 7–8 points.

Verification of a Method of Calculation of Fragments of Walls on Seismic Loading
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Results of experimental studies of fragments of reinforced concrete walls at action of the static and dynamic loadings modeling nature of seismic influence are given. Comparison of theoretical results of calculation on a distortion of fragments of walls with experimental data is given.

Dynamic Tests of Fragment Building With Using Constructional Decision of Walls With Aerocrete Blocks
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In the article demonstrated the results of experimental studies of seismic ­stability of building fragment with walls with aerocrete blocks. All works were conducted on base of EERC TsNIISK named after V.A. Kucherenko of «Joint Stock Company – Research Center of Construction».

Discussion of the Draft National Standard: «Anti-seismic and Seismically Isolated Construction Design Code. Design Rules»
Issue:
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The article briefly shows the main provisions of the 1st edition of the draft National standard: «Anti-Seismic and Seismically Isolated Construction Design Code. Design rules». National standard is presented in the Russian Federation Ministry of Construction, as a result of which, on a voluntary basis, compliance with the Federal Law «Technical regulation on safety of buildings and structures».

The draft National standard prepared EERC TsNIISK of «Open Joint Stock Company — Research Center of Construction» in accordance with the Technical task for the development of the document. The draft National standard was developed for the first time as a new document.

Development of Tooling to Conduct Monitoring of Integrated Seismic Safety in the Russian Federation’s Areas and Conduction of this Monitoring within the Framework of the Federal Target Program
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The paper presents the basic provisions of the Federal Target Program “Increasing stability of residential buildings, basic facilities and life-support systems in seismic areas of the Russian Federation for 2009-2018”. The research tools for the integrated seismic safety monitoring of the Russian Federation’s territory, the proposals and supplements for updating of the current regulatory documents are formed within this program.

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Assessment of Possibility to Use Wall Masonry from Ceramic Products of “Slavyansky Kirpich” Plant in the Russian Federation’s Seismic Areas
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The paper presents the test results for masonry specimens from ceramic products of Slavyansky Kirpich JSC, the Krasnodar Territory. The tests were conducted within the framework of studies in strength and deformability of wall masonry from hollow aerated brick and stone to substantiate a possibility of their use in the Russian Federation’s seismic areas.

Criteria of Assessing Earthquake Resistance Deficiency in Existing Buildings and Structures within the Framework of the Federal Target Program
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The paper presents the basic provisions of the Federal Target Program “Increasing Stability of Residential Buildings, Basic Projects and Life-Support Systems in Seismic Areas of the Russian Federation in 2009-2018” stipulating integrated studies in developing the regulatory and guideline framework to ensure assessment (analysis) of the earthquake resistance deficiency in buildings and structures within urban and rural life-support systems as well as their vulnerability (seismic risk)

Ensuring Integrated Seismic Safety on the Russian Federation Territory within the framework of the Federal Target Program “Increasing stability of residential buildings, basic structures and life-support systems in seismic areas of the Russian Federation
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The paper presents the conceptual issues of the Federal Target Program “Increasing stability of residential buildings, basic structures and life-support systems in seismic areas of the Russian Federation for 2009 - 2014”. The research tools for the integrated seismic safety monitoring of the RF territory, proposals and additions to update the current normative documents are formulated.

Methods of Design of Buildings with a Seismoisolating System in the Form of Metal-Rubber Supports
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Lately there has been a growing interest of the country’s engineers to introduction of seismic isolation systems when constructing buildings in seismic areas. One of the most popular methods of seismic isolation is arrangement of metal-rubber supports (MRS) from high-damping rubber within a structure. The paper presents design methods for buildings using MRS and studies the response of such buildings to seismic loads.

THE METHOD OF CALCULATING THE LAYERED ROCK-SOLID WALLS WITH THE WORK OF ALL LAYERS OF DESIGN, INCLUDING SEISMIC LOAD.
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The Analysis conducted for various constructive decisions of walls shows that the stone-reinforced walls can be a solution preferable to the construction in the climatic conditions seismic regions of Siberia, Transbaikalia and the Far East. Constructive system combines high thermal performance and high seismic resistance.

THE RESULTS OF EXPERIMENTAL AND THEORETICAL RESEARCHES OF THE INTERACTION BETWEEN LAYERS OF ROCK-SOLID WALLS
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The Analysis of effects of destructive earthquakes shows, that the brick buildings in the seismic areas (including buildings built with reinforced concrete insert) do not quite provide the necessary reliability during an earthquake. One of possible solutions, that satisfy the requirements of seismic resistance and having high resistance of heat transfer is discussed in this article. It is supporting rock-solid wall for areas with high seismic risk (up to 10 point of MSK-64), developed at the Research Center of Earthquake Engineering (RCEE) TSNIISK named after V.A. Koucherenko.

Fire safety of buildings and structures under seismic events
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The paper concerns the use in structural application in seismic areas of building structures that meet both the requirements of fire safety and seismic safety requirements. The paper deals with the procedures for building structures certification tests that confirm these structures compliance with seismic and fire safety requirements. The problems related to fire and earthquake resistance of building structures and fire protection systems and elements are under investigation. The work of the V.A. Kucherenko CNIISK specialists is described.

Earthquake engineering of the Russian Federation as a priority direction of activity of JSC Research Center of Constructions
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a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:882:"The article provides a brief historical background on the leading schools of earthquake-resistant construction and seismic isolation, formed on the basis of TsNIISK named after V.A. Coucherenko, JSC Research Center of Construction. A brief review of research works, monitoring and development of scientific and technical and regulatory documentation in the field of earthquake-proof construction, carried out by the institutes of JSC Research Center of Construction  in recent years is given. The purpose of these works was to solve the tasks set by the President and the Government of the Russian Federation in terms of ensuring the integrated seismic safety of the territory of the Russian Federation. Prospects are out lined and proposals are given by JSC Research Center of Construction on the further development of earthquake-resistant construction  in the Russian Federation.";}

Issues of ensuring seismic resistance of the building of the airport complex in the city of Yelizovo
Issue: #2-2022
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Many regions of the Russian Federation are located in seismic areas. Therefore, one of the most important issues of ensuring the mechanical safety of buildings and structures being built in seismically active areas is its seismic resistance. Special methods of seismic protection are becoming more widespread, the use of which allows you to adjust the dynamic response of buildings during seismic impact. In this paper, an approach is considered to ensure seismic protection of the terminal building in the city of Yelizovo in the form of a hydraulic damper.

Research methods: constructive solutions of the building were analyzed in terms of ensuring the seismic resistance of the building. A comparative analysis of the calculations of the building for seismic impact with and without seismic protection elements was carried out. The calculation for the seismic effect was carried out in the time domain using direct integration of the equation of motion, while the damper operation was modeled by an element with hysteresis work. The analysis of the efficiency of seismic protection was carried out.

Results: The results of scientific and technical support are presented within the framework of which the calculations of the spatial model of the terminal building in the city of Yelizovo were carried out for seismic impact with an estimated intensity of 9 points on the SSI-2017 scale [3]. The method of seismic protection in the form of devices regulating the dynamic response of the building (hydraulic damper) is considered. The selection of a seismic protection system was performed and the decrease in accelerations and forces in the main load-bearing structural elements under seismic action was shown.

Peculiarities of behavior of cross-laminated timber (CLT) under static and dynamic loads simulating seismic impacts
Issue: #2-2022
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Structural building systems using cross-laminated timber (CLT) are steadily gaining popularity due to their huge advantages over traditional technical solutions. The lightness of the material, the pliability of the mechanical joints of the panels provides a potential high seismic resistance of buildings made of CLT, despite irreversible damage to the wood panels in the joints. As a result of the inherent competitiveness of cross-laminated wood, their use is gradually increasing worldwide. The article presents a brief review and analysis of existing domestic and foreign regulatory and technical documents and the results of studies performed in the field of calculation and design of buildings based on CLT panels erected in earthquake-prone areas. The results of experimental studies aimed at studying the features of the operation of CLT panels with different numbers and arrangement of lamella layers under the influence of static and dynamic loads simulating seismic effects are presented. The results of recent achievements in the field of experimental studies of CLT building structures under seismic loads are reviewed and summarized to demonstrate current progress, problems and future directions of research.


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