Theoretical and experimental studies. Test methods
Separation of effects in device seismic platforms
Authors: Lobanov A.N., Nesterova O.P., Uzdin A.M., Shulman S.A.
Key words: Seismic impact, модель сейсмического воздействия, seismic platforms
The disadvantage of modern seismic platforms is a limited range of oscillation frequencies due to the complexity of drives, which are to provide longperiod and high-frequency oscillations typical of real accelerograms. Types of seismic platforms for carrying out field tests existing in Russia and abroad are considered. On the basis of the available data, a new version of the seismic platform has been proposed that allows one to simulate seismic loads in a wide range of vibration frequencies without significantly complicating the design.
Inspection of the building of the IGF UB RAS using the HVSR technique.
Authors: Voskresenskiy M.N., Parygin G.I., Senina T.E., Senin L.N.
Key words: survey of buildings and structures, HVSR, Nakamura method, seismic signal recorder, basic tone of natural oscillations of an object
The materials on the survey of buildings and structures of domestic authors, as well as the experience of using HVSR technique by foreign researchers, were studied. Analyzed various options for calculations. According to the data obtained in the course of work carried out at the end of 2017, transfer functions were calculated. A map of the distribution of the coefficients of vulnerability of the building was constructed. Also the “weak” places of the object were determined with spectral analysis.
Foreign experience in testings of cold formed steel structures
Authors: Gorlov V.E., Nazmeeva T.V.
Key words: cold formed steel structures, fire resistance, fire tests, normative documents, fire safety, steel structures, fire resistance, Eurocode, building codes
The analysis of fire tests of cold formed steel structures in different countries. During the analysis of the test methodology highlights the main points in which differences with domestic tests were found. The main regulatory documents for which tests are carried out. On the basis of articles and reports on foreign and domestic methods, directions are revealed in which the methods are similar. An analysis of fire tests performed in Sweden. The systematization of regulatory documentation for fire tests in Russia, Great Britain (England, Wales, Scotland), Sweden, as part of the European Union, Ukraine, as a country combining the system of European and Russian standards.
Detailed seismic zoning of the North-West Caucasus taking into account the results of paleoseismogeological studies
Authors: Rogozhin, E. A., Lutikov A. I., Ovsyuchenko A. N., Dontsova G. Yu., A. I. Sycolin
Key words: paleoseismogeological studies, seismotectonic basis, seismic effects, seismic hazard of the region, seismic risk
The results of a new generalization of data on the seismic hazard of the North-West Caucasus, taking into account the impact of paleoseismogeological studies on the level of seismic hazard. A fundamentally new seismotectonic framework (who zone map) has been prepared for detailed seismic hazard maps of the region. On the basis of this who zone map, seismic impacts are calculated on a probabilistic basis. On the maps, the North-Western and Central segments of the Greater Caucasus appear to be a seismically dangerous area, where the level of seismic impacts reaches 8.5 points on maps A and B. at the same time, compared with the data of the SRS-97 maps, the obtained results look more differentiated and in General significantly reduce the level of seismic danger in the region. The work is important from the methodological point of view in the light of seismic risk management in this densely populated and actively developed territory of Russia.
Design and safety of educational and medical institutions on the Crimean Peninsula. Problems and solutions. Problems and solutions
Authors: Akbiev R.T., Glazkov D.A., Pekshev V.G., Kolesnikov A.V.
Key words: antiseismic protection, research, karst hazard, scientific and technical support, design, seismicity, special technical conditions, construction, operation
The article summarizes the problems faced by customers and specialists in the design and construction of health care facilities and educational institutions on the territory of the Crimean Peninsula. Specific examples show methods of solving such problems, which require an integrated approach using variant design, which allows to optimize the projects implemented in terms of time and economic costs.
Design analysis, design of components, buildings and structures
Effective designs and seismic resistance of wooden buildings taking into account regional features of construction
Authors: Gornostayev A.V.
Key words: wooden structures, testing, material, design, computational and experimental studies, seismic resistance, construction
The article presents the results of an analytical review for further studies of effective structures and improve the seismic resistance of wooden buildings, expanding the scope of their application in different regions of the Russian Federation in the Far East. The article precedes a series of publications of the author on research in this area. The development and results of the programme of such studies are the subject of further publications.
