DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

ASSESSMENTOF SEISMIC STABILITY OF BUILDINGS THAT HAVE SEISMICPROTECTION IN THE FORM OF ELASTOMERIC ISOLATORS

Vestnik MGSU 8/2013
  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, head, Scientific Laboratory of Reliability and Seismic Resistance of Structures, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bunov Artem Anatol’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, engineer, Department of Strength of Materials, 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 .

Pages 21-28

Nowadays, various systems of seismic protection are applied to assure seismic protection of buildings and structures, located in earthquake areas. The greatest prevalence and popularity has been attained by the systems of active seismic protection.In this article, the authors study the efficiency of application of an active seismic protection system by taking high-damping rubber elastomeric isolators as an example. Calculations and their comparative analysis were made for a high-rise reinforced concrete building, and their exposure to the seismic impact was examined. Those calculations were made both with and without the application of the active seismic isolation system. Calculations were carried out by means of the linearly-spectral method using Lira software. Maximum relative horizontal moments arising on the top of the building and forces applied to the elements of walls and columns were compared. On the basis of the results of the calculations and their comparative analysis, the conclusion is drawn that elastomeric isolators may be efficiently applied as an active seismic protection system.

DOI: 10.22227/1997-0935.2013.8.21-28

References
  1. Ormonbekov T.O., Begaliev Yu.T., Derov A.V., Maksimov G.A., Pozdnyakov S.G. Primenenie tonkosloynykh rezinometallicheskikh opor dlya seysmozashchity zdaniy v usloviyakh territorii Kyrgyzskoy Respubliki [Application of Thin-layered Rubber-metal Bearings to Assure Seismic Protection of Buildings in the Environment of the Republic of Kirghizia]. Bishkek, Uchkun Publ., 2005, 215 p.
  2. Catalogue on Elastomeric Isolators Series SI-H 550/154. FIP Industriale S.P.A.
  3. Kircher Ch.A. NEHRP Recommended Provisions: Design Examples. Chapter 12: Seismically Isolated Structures. Federal Emergency Management Agency. FEMA P-751, Washington, D.C., 2012.
  4. Prestandard and Commentary for the Seismic Rehabilitation of Buildings (FEMA 356). Chapter 9.2: Seismic Isolation System. Federal Emergency Management Agency. Washington, D.C, 2000.
  5. Constsntinou M.C., Kalpakidis I., Filiatrault A., Ecker Lay R.A. LRFD-Based Analysis and Design Procedures for Bridge Bearings and Seismic Isolators. Technical Report MCEER-11-0004. New York, Buffalo, September 26, 2011, p. 204.
  6. Ayzenberg Ya.M., Smirnov V.I., Akbiev R.T. Metodicheskie rekomendatsii po proektirovaniyu seysmoizolyatsii s primeneniem rezinometallicheskikh opor [Methodological Recommendations on Seismic Isolation Design with the Application of Rubber-metal Bearings]. Moscow, RASS Publ., 2008, 46 p.
  7. Naeim F., Kelly J.M. Design of Seismic Isolated Structures: from Theory to Practice. New York, John Wiley, 1999, 289 p.
  8. Mkrtychev O.V., Mkrtychev A.E. Analiz effektivnosti rezinometallicheskikh opor pri stroitel'stve vysotnykh zdaniy v seysmicheskikh rayonakh [Efficiency Analysis of Rubber-metal Bearings in the Course of Construction of High-rise Buildings in Earthquake Areas]. Vestnik NITs ”Stroitel'stvo” [Proceedings of Research Centre for Construction]. 2010, no. 2 (XXVII), pp. 126—137.
  9. Mkrtychev O.V., Dzhinchvelashvili G.A. Problemy ucheta nelineynostey v teorii seysmostoykosti (gipotezy i zabluzhdeniya) [Problems of Nonlinearities Consideration in the Seismic Stability Theory (Hypotheses and Delusions)]. Moscow, MGSU Publ., 2012, 192 p.

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RESEARCH INTO A NEW STRUCTURAL SOLUTION APPLICABLE TO FOUNDATIONS RESTING ON THE SLIDING LAYER

Vestnik MGSU 11/2012
  • Abovskiy Naum Petrovich - Siberian Federal University (SFU) Doctor of Technical Sciences, Professor, Honorary Member Russian Academy of Architectural and Construction Sciences (RAACS), Consulting Professor, Department of Building Structures and Control Systems, +7(391)243-24-98, Siberian Federal University (SFU), 82 Svobodnyy prospekt, Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Inzhutov Ivan Semenovich - Siberian Federal University (SFU) Doctor of Technical Sciences, Professor, Member Russian Academy of Natural Sciences (RAEN), Director, Institute of Civil Engineering, +7(391)252-78-11, Siberian Federal University (SFU), 82 Svobodnyy prospekt, Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Deordiev Sergey Vladimirovich - Institute of Civil Engineering, Siberian Federal University (SFU) +7 (391) 252-78-64, Institute of Civil Engineering, Siberian Federal University (SFU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Palagushkin Vladimir Ivanovich - Siberian Federal University (SFU) Candidate of Technical Sciences, Associate Professor, Department of Building Structures and Control Systems +7(391)206-27-55, Siberian Federal University (SFU), 82 Svobodnyy prospekt, Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sibgatulin Viktor Gazizovich - Nonprofi t Partnership Ecological Centre for Rational Reclamation of Natural Resources (NP «ETs ROPR») Distinguished Geologist of the Russian Federation, Director, +7(391)226-31-38, Nonprofi t Partnership Ecological Centre for Rational Reclamation of Natural Resources (NP «ETs ROPR»), Offi ce 232, 53 prospekt Mira, Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Khudoberdin Ivan Rafailovich - Siberian Federal University (SFU) engineer, Department of Building Structures and Control Systems, Siberian Federal University (SFU), 82 Svobodnyy prospekt, Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 32 - 37

The authors provide solutions to the relevant issue of development and construction of
foundations resting on a sliding layer as a method of external seismic protection of buildings and
structures. The authors have developed a system of automated operating control over the external
seismic protection of buildings (structures) that represents an automatic switch of the emergencylevel
seismic load. The authors have filed an application for the registration of their invention. The
proposed solution has everything in place to be widely applied to improve the seismic protection of
buildings and structures, especially those resting on problematic soils.
The authors provide their description of a paradox of foundations: foundations are analyzed
in terms of "upside-down" loads, whereas seismic loads have an opposite direction. The authors
provide their solutions to this problem.
The authors argue that methods of seismic protection incorporated into effective regulations
are limited, and they do not constitute any external seismic protection methods, whereas the
application of seismic isolation inside buildings is unreasonable, as it is limited by the requirement
to install it "above the foundation". Presently, the above methods are being reworked into foundation
platforms resting on a sliding layer. Their efficiency has been proven by a computerized model and
a theoretical analysis.
The authors also provide their argumentation in favour of the conclusion that relevant seismic
protection development trends are to incorporate advanced structural solutions, including methods
of external seismic protection.

DOI: 10.22227/1997-0935.2012.11.32 - 37

References
  1. Abovskiy N.P., Inzhutov I.S., Deordiev S.V., Palagushkin V.I. Neobkhodimost’ sistemnykh issledovaniy po seysmostoykomu stroitel’stvu [A Need for Systemic Research into Seismic Construction]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy. [Seismic Construction. Safety of Structures]. 2011, no. 3, pp. 71—74.
  2. Abovskiy N.P., Inzhutov I.S., Khoroshavin E.A., Deordiev S.V., Palagushkin V.I. O vozmozhnosti vneshnikh seysmozashchitnykh ustroystv [Applicability of External Seismic Protection Devices]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy. [Seismic Construction. Safety of Structures]. 2011, no. 6, pp. 38—42.
  3. N.P. Abovskiy and others. Patents 2206665, 2273697, 38789, 45410, 50553, 53342, 55388, 64650, 69094, 73350, 59650. Russian Federation.
  4. Abovskiy N.P., Marchuk N.I., Maksimova O.M. and others. Konstruktivnaya seysmobezopasnost’ zdaniy i sooruzheniy v slozhnykh gruntovykh usloviyakh [Seismic Safety of Constructions of Buildings and Structures in Problematic Soils]. Krasnoyarsk, SFU Publ., 2009, 186 p.

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