Научно-практическая конференция: моделирование и расчеты для проектных целей и обоснования сейсмостойкости зданий и сооружений
The state of affairs in the Russian Federation in the field of seismology and seismic hazard assessment
Authors: Rogozhin, E.A., Sobisevich A.L.
Key words: seismology section, Interdepartmental Council on seismology and earthquake engineering, seismology, unamiously.
The report presents information on the activities of the Section seismology of the Interdepartmental Council on seismology and earthquake engineering (MSCS). Marked successes and drawbacks.
Problems and tasks of scientific and technical regulation of earthquake engineering in the Russian Federation
Authors: Nazarov Yu. P., Travush V. I.
Key words: seismic zones, structural mechanics, seismic safety.
The report analyzes the main factors that systematically affect the reliability of construction objects in seismic region.
On standard improvements of earthquakeresistant buildings of the Republic of Kazakhstan
Authors: Abakanov M.S.
Key words: behavioural coefficent, new normatives, Set of Rules for RK complying with Eurocodes, national application, concrete, reinforcement.
The report considers current approaches to improving standards for earthquake engineering of the Republic of Kazakhstan, are some of the main results of experimental studies carried out on statically determinate and indeterminate reinforced concrete beams under the action of low-cycle alternating loads like seismic high level.
The concept of the new standards of earthquake engineering
Authors: Uzdin A.M.
Key words: earthquake-resistant construction, regulatory framework, scale of intensity, seismic risk, damping.
The report presents the overall concept possible standards of earthquake engineering. She focuses on modern advances in earthquake engineering and new standards of Europe, China and Japan, providing continuity to the old standards. Made recommendations for unification of terminology, improvement of the original seismic data, improved calculation approach for the seismic effects, addition and unification of standards.
Seismic safety of modern civil buildings of Central Asian region (assessment, problem, ways of it increasing)
Authors: Khakimov Sh.A.
Key words: civil buildings, present-day housing, Central Asian region, seismic safety, increasing seismic resistance
The questions of the seismic safety of civil buildings of modern construction from low-strength materials, masonry and reinforced concrete are considered. Some suggestions to improve their seismic resistance are presented.
Evolution of the requirements for seismologists and surveyors concerning input data for the design of safety related structures (according to ASCE43-05 and ASCE4-16)
Authors: Tyapin A.G.
Key words: seismic source information, safety of constructions, seismic effects.
The report examines the norms of calculation of critical facilities to seismic excitation ASCE43–05 and ASCE4–16. Highlights the main innovations in the requirements for the spectra of influences, the accelerograms, the calculation of the reaction site.
New standards of the Republic of Kazakhstan on seismic-building construction
Authors: Itskov I.E.
Key words: new norms, seismic construction, general seismic zoning maps, peak acceleration, response spectra.
The report examines some aspects of the new normative documents regulating rules of design and construction in seismic regions of the Republic of Kazakhstan.
Critical analysis of the state normative documents on calculation of structures for earthquake
Authors: Mondrus V.L., Kurbatskii E.N.
Key words: earthquake accelerograms, peak acceleration, peak velocity, peak displacementl, tunnels, bridges, response spectra, normative documents.
A critical analysis of the document Code SP 14.13330.2014 « SNIP II-7‑81 Construction in seismic areas» and «Set of Rules. Traffic construction in seismic areas. It is noted that the presented normative documents contain outdated information corresponding to the middle of the last century. Documents do not match the current level of development of science and knowledge in the field of calculation of structures for seismic stability. In the analyzed papers old seismic input information is used. This information has been obtained by using a small number of earthquakes accelerograms recorded in analog forms. At present the designers are not provided Regulations for the design of earthquake-proof structures in areas with high seismic activity.
Application of the block preconditioned conjugate gradient method for extraction of the natural vibration frequencies and modes in seismic analysis of buildings and structures on multi-core computers
Authors: Fialko S.Yu.
Key words: finite element method, eigenvalue problem, conjugate gradient method, preconditioning, multithreading.
A block conjugate gradient method with incomplete Cholesky factorization preconditioning for extracting the natural vibration frequencies and modes of computational models of large dimension that arise when the finite element method is applied to the problems of structural and solid mechanics is presented.
Regarding to setting of seismic input data on the base of probabilistic seismic hazard assessment results
Authors: Yasunov P.A., Safarzoda Н.A., Abdulloev N.M.
Key words: seismicity, probabilistic estimation of seismic hazard, normative documents, peak accelerations, reaction spectra
In this paper, the issue of seismic impact normalization is considered based on the results of probabilistic estimation of seismic hazard. The analysis and comparison of the method of probabilistic estimation of seismic hazard and the current normative documents of the Republic of Tajikistan are given.
Regulation of designing tunnels in seismic areas
Authors: Dorman I.J.
Key words: earthquake, tunnel, calculation, design
The report addresses the question of the regulatory framework for the construction of transport tunnels and other underground structures in seismic areas. Provides information about developed by the authors method of calculation of the stress state of tunnel linings shaped by earthquakes.
State standards of the Russian Federation for seismic resistance calculation of transport constructions
Authors: Kurbatskii E.N., Titov E.Yu., Kharitonov S.S.
Key words: earthquake accelerograms, peak acceleration, peak velocity, peak displacementl, tunnels, bridges, response spectra, normative documents.
A critical analysis of the document Code SP 14.13330.2014 «Construction in seismic areas SNIP II-7-81» and «Set of Rules. Traffic construction in seismic areas». It is noted that the presented normative documents contain outdated information corresponding to the middle of the last century. Documents do not match the current level of development of science and knowledge in the field of calculation of structures for seismic stability. In the analyzed papers old seismic input information is used. This information has been obtained by using a small number of earthquakes accelerograms recorded in analog forms. At present the designers are not provided Regulations for the design of earthquake-proof structures in areas with high seismic activity.
Energy methods of substantiation of seismic stability of buildings
Authors: Jinchvelashvili G.A..
Key words: energy calculation methods, earthquake resistant structures, seismic energy.
The report substantiates the expediency of application of energy approach to the calculations in the design of earthquake-resistant buildings. Information is given about existing methods of implementation of energy concepts in earthquake-resistant design.
Modern computeroriented models for dynamic analysis of building structures using spatial models of the seismic impact. The possibility of using in the new generation norms of seismic-resistant design
Authors: Semenov V.A., Lebedev V.L., Baglaev N.N.
Key words: seismic effect, non-proportional damping, finite element method.
The report presents calculation methodologies for spatial models of structures by the finite element method based on the use of a General spatial model of exposure given the significant influence of dissipation to the generalized inertia forces and non-proportional damping. This solution of the problem of forced vibrations of structures during the earthquake in the time domain.
Regulation of seismic resistance of power facilities and waterworks
Authors: Kaliberda I.V.
Key words: seismic safety, the protection of buildings during earthquakes, waterworks, power plants.
The report addresses the issue of security in case of earthquakes of electric power facilities and hydraulic structures. The necessity of development of the regulatory framework at the Federal level, establishing safety requirements during earthquakes electric power facilities and hydraulic structures, taking into account their peculiarities and importance for the energy security of the Russian Federation.
Import substitution versus importunately (about situation in seismic design codification)
Authors: Shestoperov G.S.
Key words: seismology, seismic safety, transport structures, designing.
The report addresses the issues of improving the normative base of the Russian Federation in the field of construction in seismic areas.
Problems of development of new Russian seismic scale
Authors: Berzinski Yu. A.
Key words: earthquake, scale of seismic intensity, instrumental part of the scale, seismic resistance class of buildings, trajectory of buildings condition, natural phenomena in the environment.
The paper considers the problem of development of the new Russian seismic scale «Earthquakes. Scale of seismic intensity». Attention is paid to the scientific and technical level of the new scale. The principles of creating a new seismic scale are explained.
Section: seismology, surveying, tsunami safety
The concept and regulation tsunamidusher in the Russian Federation
Authors: Klyachko M.A., Pelinovsky E.N., Kaistrenko, V.M.
Key words: znami safety, regulation of znami safety, monitoring of tsunami danger, efficiency of evacuation.
The report deals with the problem of rationing of tsunami safety sea coasts of the Russian Federation. Given. Discusses problems associated with the improvement of surveillance and monitoring connivently, service, tsunami warning, with effectiveness of evacuation and other General and particular problems.
Long-term estimates of seismic and tsunami hazard: problems of methodology and observational data
Authors: Gusiakov V.K.
Key words: tsunami zonation, tsunami of non-seismic origin seismic zonation, assessment of tsunami hazard
The paper discusses methods and approaches used in Russia and abroad for mapping tsunami hazard on the coasts affected by tsunami waves that is for solving the problem of the preliminary tsunamizonation of the coast. The methodological commonality of this problem with the problem of seismic zonation of coastal territories is noted. The latter is solved now in all countries on the basis of the methodology of the PSHA (Probabilistic Seismic Hazard Assessment). A similar methodology for tsunamizonation is called PTHA (Probabilistic Tsunami Hazard Assessment). Methodological problems of hazard assessment and problems of completeness and reliability of observational data are discussed.
Tsunami risk of sea of Japan
Authors: Kaistrenko V.M.
Key words: tsunami, tsunami safety, tsunami zonation, tsunami activity.
The report focuses on the issue of tsunami activity the sea of Japan. Provides information on the methods of obtaining the estimates of the tsunami hazard on the basis of field data on historical tsunamis.
Engineering-geological justification of preproject planning documentation
Authors: Vadachkoria O.A.
Key words: spatial planning, information on natural conditions, planning decisions.
Address the issues of providing pre-project planning documentation geotechnical information on examples of strategy of development of the Caucasian Mineral Waters, the development Programme of the Republic of Abkhazia (Gagra district), city of greater Sochi, the southern Coast of Crimea.
Estimation and prediction of the behavior of soils of different states in strong earthquakes within the permafrost zone of Eastern Siberia
Authors: Dzhurik V.I., Serebrennikov S.P., Bryzhak E.V., Eskin A.Yu.
Key words: Eastern Siberia, cryolithozone, dynamic parameters, seismicity, maximal accelerations, spectra, frequency characteristics.
The results of studies of seismic properties of rock and soft soils under different temperature and humidity regimes for the frozen, waterunsaturated and water-saturated state of near-surface layers of the earth»s crust within the cryolithozone of Eastern Siberia are described. The possibility of predicting of changes in the dynamic parameters of the calculated strong earthquake in the degradation of the permafrost on an example of a large geological structure of the region under consideration.
Current state and problems of engineering seismology: detailed seismic zoning and seismic microzonation
Authors: Zaalishvili V.B.
Key words: engineering seismology, detailed seismic zoning, seismic microzonation.
The paper considers the current state and prevailing problems of engineering seismology, its place in practical urban development, and possible ways of their solution. Particularly, the methods for expected seismic hazard assessment and the results of their implementation in the form of maps of general seismic zoning (GSZ), detailed seismic zoning (DSZ), seismic microzonation (SMZ), and features of their practical use are considered.
A brief analysis of the problems caused by the formal use of the considered seismic hazard assessments in practical works was carried out. It is shown that, in these conditions, the quality and strategic depth of normative documents, especially those newly developed, become of prime importance.
Application of the method of standing waves in the study of engineering structures and complex structures in seismic micro zoning
Authors: Emanov A.F., Bach A.A., Emanov A.A.
Key words: method standing waves, the energy of standing waves, seismic protection, seismic micro zoning, vibrations.
The report considers the use of the method of standing waves for the study of natural vibrations of buildings of complex configuration. Provides details of experimental studies by the method of standing waves of buildings of the same design, but differing by the presence or absence of trade in the form of flexible floor.
The effect of the Earth’s deceleration on the increase in global seismic activity
Authors: Levin B.W., Sasorova E.V.
Key words: Angular velocity of rotation, Earth figure, flattening, deceleration, seismicity, GPS-observations.
The report provides a comparative analysis of long series of observations of the variations of the speed of rotation of the Earth and Global earthquake catalogs.
«Scientific» myths of seismic zoning
Authors: Aleshin A.S.
Key words: scientific myths, seismic zoning, seismic regulations.
The most common «scientific myths» seismic zoning are analyzed in article: the weaknesses of national seismic standards, the benefits of foreign norms and of the extreme importance of maps of General seismic zoning. No matter what, domestic engineering seismology in view of the latest national seismic standards successfully overcomes all difficulties and is developing intensively.
Monitoring of natural and industrial disasters of the Northern Sea route
Authors: Antonovskaya G.N., Rogozhin E.A., Kapustian N.K.
Key words: monitoring, seismic network, seismicity.
The report substantiates the need for the deployment Arctic seismic network of the Russian Federation, aimed at the monitoring of regional and local seismicity of the Arctic.
Special laboratory researches to determine the dynamic characteristics of the soil
Authors: Ter-Martirosyan A.Z., Sobolev E.S.
Key words: dynamic impact; dynamic instability; ground base; laboratory research; foundations; underground structures; dynamic tests of soils; liquefaction potential; dynamic base calculations; numerical calculations; models of soils.
Ensuring the safe operation of buildings and structures of increased responsibility in complex engineering and geological conditions requires a special approach to engineering surveys and construction. When designing ground bases, it is necessary to take into account the dynamic effects of man-made or natural origin. In this case, it is necessary to provide for a complex of special studies of the foundation soils. The results of the investigations make it possible to obtain the mechanical properties of soils necessary for subsequent calculations. As a rule, calculations are performed in modern software systems by numerical simulation of the «foundation-construction» system. Forecasting the stress-strain state of the soil base, taking into account special studies of soils and numerical modeling, allows to ensure strength and stability, as well as safe operation of the proposed structure during its entire service life.
Parameters of Seismic Treatment in Building Codes
Authors: Aptikaev F.F., Erteleva O.O.
Key words: seismology, regulations, seismic impacts, seismic source information accelerograms.
This paper examines the issue of specifying the initial seismic information in the normative documents of the Russian Federation. It is concluded that the existing technique of the seismic excitation does not reflect the modern level of development of science. It is proposed to pay more attention to the improvement of methods of calculation of structures taking into account the duration of the vibrations and energy waves.
Parameters of ground motion during strong earthquakes
Authors: Shestoperov G.S.
Key words: scale of seismic intensity of ground vibration, detailed seismic zoning, seismic intensity.
The report compares the available instrumental seismic intensity scales. Analyzed scale of seismic intensity, built on the axiomatic basis which allows to represent the dependence of the boundary and the average statistical values of kinematic parameters of ground motion in both tabular and analytical forms.
The definition of extreme design storms rare occurrence for projects for floating nuclear power plants
Authors: Kantarzhi I.G.
Key words: floating nuclear power plants, storms of rare occurrence, statistical analysis.
The report presents the methodology and results of determination of a design storm frequency of occurrence to 1 in 10,000 years. Discusses methods of statistical analysis of extreme values of Oceanographic (metocean) parameters, based on the approaches developed in the modern theory of statistics of extreme values.
Recent methods of detailed seismic zonation and seismic microzonation
Authors: Pavlenko O.V.
Key words: strong motion parameters, regional characteristics of radiation and propagation of seismic waves, local site effects, ground response, detailed seismic zonation, seismic microzonation.
In the design and construction in seismic areas of modern structures, which are often multi-storied and complicated, it is extremely important to correctly estimate the parameters of possible strong ground motion, such as, its intensity, peak ground accelerations, velocities and displacements, its duration, the waveforms, and spectral composition. These parameters are determined by the properties of seismic sources (source effects), of the crust and upper mantle in the region (path effects) and local site effects, i. e. ground response, the influence of surface topography, etc. As known, the source and path effects can vary significantly from region to region; they are described by a finite number of parameters, and seismologists should estimate their regional values. To date methods are developed for reliable assessment of seismic motion parameters required in the design and construction of earthquake resistant structures..
The technology of dynamic geophysical monitoring of individual seismic risk
Authors: Nigmetov G.M.
Key words: monitoring, seismic risk, seismicity, seismic individual risk.
This paper examines the question of dynamic geophysical monitoring the seismicity of the soil massif and earthquake resistance of structures. When this soil is considered as a structural system. The technology of dynamic geophysical monitoring allows for the monitoring of individual risk.
Comparison of three methods of probabilistic analysis of seismic hazard at the examples of Sochi and Kamchatka
Authors: Pavlenko V.A.
Key words: probabilistic analysis of seismic hazard, the method of Cornell-McGuire, synthetic catalogue of earthquakes, the equation of prediction of the ground motion.
The infrastructure construction in seismically active areas require a detailed analysis of the possible seismic effects. To date, several methods of probabilistic analysis of seismic hazard (VASO). The paper compares the results of applying the three methods VASO. Model-based foci, based on the smoothing of the spatial distribution of epicenters of the observed earthquakes, compared to the method of Cornell-McGuire, Parametric-Historical method and the method based on the use of synthetic earthquake catalogs (Monte Carlo). For research were selected two regions of Russia, these regions were the maps of seismic hazard recurrence periods of 475 and 2475 years. The results showed that the differences in the estimates of risk in this approach is relatively small. The method of Cornell-McGuire gives the highest rating of danger, evaluation of the other two methods is somewhat lower.
City-planning safety. Methodological basis
Authors: Vilner M.J., Akbiev R.T.
Key words: agglomeration, urban safety, town-planning activity, negative (dangerous) effects, forecasting, seismic safety, system of measures, territorial level, control.
The problem of regulation of urban development in territories with the risk of earthquakes and other negative (dangerous) natural and technogenic impacts is very relevant. According to experts, the time has come for widespread introduction of the term «integrated city-planning safety» into practice, which most accurately determines not only the importance of the indicated problem in the framework of the country»s agglomeration development, but essentially specifies the vector of concrete actions and the key, with which it is necessary to improve legislation and system of measures for the response of relevant ministries to possible threats of the near future. If we take this as the axiom, then the problem of seismic safety of structures and cities should be considered as a basis and at the same time an integral part of the problems associated with providing integrated urban safety. In view of the foregoing, the concepts of «town planning» and «seismic» security are based on the general methodological foundations, which are given in the report.
The seismic protection of life and health of people in buildings during an earthquake
Authors: Maslyaev A.V., Maslyaev V.N.
Key words: seismic protection of buildings, earthquakes, settlements, seismic protection of settlements.
The paper suggests a different paradigm of seismic protection of life and health of people in buildings during an earthquake. The proposed paradigm is based on seismic protection of settlements of the Russian Federation.
Proposals on the concept of information system «SEISMO.SU»
Authors: Akbiev R.T., Morozova T.V.
Key words: association, Eurasian integration, informatization, seismic safety, mass media, SROSEKSPERT, Central Research Institute of Construction Ministry of Russia, SEISMO. SU.
The report contains general proposals on the concept of a single information system for the seismic safety of buildings and cities «SEISMO. SU», which is proposed to be implemented within the framework of the Eurasian integration with the participation of scientists, specialists and organizations from Russia, CIS countries, EEU and so forth.
Some problems of calculation of constructions jointly with ground massive on dynamic impact
Authors: Gorodetskiy A.S.
Key words: dynamic loads, seismic impacts, border conditions, finite elements, synthesized accelerograms.
When calculating structures together with a soil massif for dynamic impacts, there are always questions about boundary conditions that need to be introduced at the boundaries of a soil massif of limited size.
