Error
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering

Method for determining initial characteristics of the most unfavorable accelerograms for linear systems with finite number of degrees of freedom

Vestnik MGSU 8/2015
  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Head of Research Laboratory “Reliability and Earthquake Engineering”, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Reshetov Andrey Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, engineer, Research Laboratory “Reliability and Earthquake Engineering”, 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 80-91

The paper proposes a method of determining the baseline characteristics of accelerograms required for their synthesis. Accelerograms generated according to them transmit maximum impact energy of the seismic action to a construction. However, they are possible with a certain probability for a given construction site. To solve this problem were obtained seismic characteristics of the construction site and dynamic characteristics of the structure. Then was formed the target function characterizing the energy transmitted to the structure. Characteristics corresponding to the maximum of the target function will be most unfavorable baseline characteristics of accelerograms. As construction was considered a linear system with a finite number of degrees of freedom. In paper were obtained impulse and frequency responses of the considered linear system. As the seismic characteristics of the construction site have been obtained some characteristics of accelerograms. Such as the spectral density, distribution law dominant frequency, envelope. In paper as the target function is considered the dispersion of the displacement of the highest floor of the system. As varied parameter is considered a shift of the initial spectral density of the impact. On the shift parameter imposed probabilistic restrictions due to the law of the distribution of the dominant frequency. The use of the proposed method when generating accelerograms will allow to calculate seismic stability the most complete way.

DOI: 10.22227/1997-0935.2015.8.80-91

References
  1. Bolotin V.V., Radin V.P., Chirkov V.P. Modelirovanie dinamicheskikh protsessov v elementakh stroitel’nykh konstruktsiy pri zemletryaseniyakh [Modeling Dynamic Processes in the Elements of Building Structures in Case of Earthquakes]. Izvestiya vuzov.Stroitel’stvo [News of Higher Educational Institutions. Construction]. 1999, no. 5, pp. 17—21. (In Russian)
  2. Mkrtychev O.V., Yur’ev R.V. Raschet konstruktsiy na seysmicheskie vozdeystviya s ispol’zovaniem sintezirovannykh akselerogramm [Structural Analysis on Seismic Effects Using Synthesized Accelerograms]. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and Civil Engineering]. 2010, no. 6, pp. 52—54. (In Russian)
  3. Mkrtychev O.V., Reshetov A.A. Metodika modelirovaniya naibolee neblagopriyatnykh akselerogramm zemletryaseniy [Methods of Modeling the Most Unfavorable Earthquake Accelerograms]. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and Civil Engineering]. 2013, no. 9, pp. 24—26. (In Russian)
  4. Nazarov Yu.P., Poznyak E.V., Filimonov A.V. Analiz vida volnovoy modeli i poluchenie raschetnykh parametrov seysmicheskogo vozdeystviya dlya vysotnogo zdaniya [Wave Model Analysis and Obtaining Estimated Parameters of the Seismic Action for Tall Buildings]. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and Civil Engineering]. 2014, no. 5, pp. 40—45. (In Russian)
  5. Nazarov Yu.P., Poznyak E.V. O prostranstvennoy izmenchivosti seysmicheskikh dvizheniy grunta pri raschetakh sooruzheniy [On Space Variability of Seismic Movements of Soil at Structural Analysis]. Osnovaniya, fundamenty i mekhanika gruntov [Soil Mechanics and Foundation Engineering]. 2014, no. 5, pp. 17—20. (In Russian)
  6. Pshenichkina V.A., Zolina T.V., Drozdov V.V., Kharlanov V.L. Metodika otsenki seysmicheskoy nadezhnosti zdaniy povyshennoy etazhnosti [Methods of Estimating Seismic Reliability of High-Rise Buildings]. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta. Seriya: Stroitel’stvo i arkhitektura [Bulletin of Volgograd State University of Architecture and Civil Engineering. Series: Construction and Architecture]. 2011, no. 25, pp. 50—56. (In Russian)
  7. Cacciola P. A Stochastic Approach for Generating Spectrum Compatible Fully Nonstationary Earthquakes. Computers & Structures. 2010, vol. 88, no. 15—16, pp. 889—901. DOI: http://dx.doi.org/10.1016/j.compstruc.2010.04.009.
  8. Hernández J.J., López O.A. Response to Three-Component Seismic Motion of Arbitrary Direction. Earthquake Engineering & Structural Dynamics. 2002, vol. 31, no. 1, pp. 55—57. DOI: http://dx.doi.org/10.1002/eqe.95.
  9. Shrikhande M., Gupta V.K. On the Characterization of the Phase Spectrum for Strong Motion Synthesis. Journal of Earthquake Engineering. 2001, vol. 5, no. 4, pp. 465—482. DOI: http://dx.doi.org/10.1080/13632460109350402.
  10. Ayzenberg Ya.M., Akbiev R.T., Smirnov V.I., Chubakov M.Zh. Dinamicheskie ispytaniya i seysmostoykost’ navesnykh fasadnykh sistem [Dynamic Tests and Seismic Resistance of Hinged Facade Systems]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy [Antiseismic Construction. Safety of Structures]. 2008, no. 1, pp. 13—15. (In Russian)
  11. Dzhinchvelashvili G.A., Mkrtychev O.V. Effektivnost’ primeneniya seysmoizoliruyushchikh opor pri stroitel’stve zdaniy i sooruzheniy [Effectiveness of Seismic Isolation Bearings during the Construction of Buildings and Structures]. Transportnoe stroitel’stvo [Transpot Construction]. 2003, no. 9, pp. 27—31. (In Russian)
  12. Mkrtychev O.V., Dzhinchvelashvili G.A. Analiz ustoychivosti zdaniya pri avariynykh vozdeystviyakh [Analysis of Building Sustainability during Emergency Actions]. Nauka i tekhnika transporta [Science and Technology on Transport]. 2002, no. 2, pp. 34—41. (In Russian)
  13. Radin V.P., Trifonov O.V., Chirkov V.P. Model’ mnogoetazhnogo karkasnogo zdaniya dlya raschetov na intensivnye seysmicheskie vozdeystviya [A Model of Multi-Storey Frame Buildings for Calculations on Intensive Seismic Effects]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy [Antiseismic Construction. Safety of Structures]. 2001, no. 1, pp. 23—26. (In Russian)
  14. Tamrazyan A.G., Tomilin V.A. Nesushchaya sposobnost’ konstruktsiy vysotnykh zdaniy pri lokal’nykh izmeneniyakh fiziko-mekhanicheskikh kharakteristik materialov [Bearing Capacity of High-Rise Structures under Local Changes of Physical-Mechanical Characteristics of Materials]. Zhilishchnoe stroitel’stvo [Housing Construction]. 2007, no. 11, pp. 24—25. (In Russian)
  15. Trifonov O.V. Modelirovanie dinamicheskoy reaktsii konstruktsiy pri dvukhkomponentnykh seysmicheskikh vozdeystviyakh [Simulation of Dynamic Response of Structures at Two-Component Seismic Impacts]. Seysmostoykoe stroitel’stvo. Bezopasnost’ sooruzheniy [Antiseismic Construction. Safety of Structures]. 2000, no. 1, pp. 42—45. (In Russian)
  16. Thráinsson H., Kiremidjian A.S. Simulation of Digital Earthquake Accelerograms Using the Inverse Discrete Fourier Transform. Earthquake Engineering & Structural Dynamics. 2002, vol. 31, no. 12, pp. 2023—2048.
  17. Lekshmy P.R., Raghukanth S.T.G. Maximum Possible Ground Motion for Linear Structures. Journal of Earthquake Engineering. 2015, vol. 19, no. 6, pp. 938—955. DOI: http://dx.doi.org/10.1080/13632469.2015.1023472.
  18. Sanaz Rezaeian, Armen Der Kiureghian. Simulation of Synthetic Ground Motions for Specified Earthquake and Site Characteristics. Earthquake Engineering & Structural Dynamics. 2010, vol. 39, no. 10, pp. 1155—1180. DOI: http://dx.doi.org/10.1002/eqe.997.
  19. Soize C. Information Theory for Generation of Accelerograms Associated with Shock Response Spectra. Computer-Aided Civil and Infrastructure Engineering. 2010, vol. 25, no. 5, pp. 334—347. DOI: http://dx.doi.org/10.1111/j.1467-8667.2009.00643.x.
  20. Zentner I. Simulation of Non-Stationary Conditional Ground Motion Fields in the Time Domain. Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards. 2013, vol. 7, no. 1, pp. 37—48. DOI: http://dx.doi.org/10.1080/17499518.2013.763572.

Download

REPRESENTATIVE SET OF EARTHQUAKE ACCELEROGRAMMS FOR STRUCTURAL ENGINEERING OF BUILDINGS AND STRUCTURES DURING EARTHQUAKE EFFECTS

Vestnik MGSU 7/2017 Volume 12
  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Head of Research Laboratory “Reliability and Earthquake Engineering”, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Reshetov Andrey Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Engineer, Research Laboratory “Reliability and Earthquake Engineering”, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 754-760

In the process of structural engineering of buildings and structures with the use of direct dynamic methods the accelerogramms of earthquakes with the parameters corresponding to a specific construction site are required. Such accelerogramms could be obtained by various methods. For example, they could be produced by seismologists. However, for a structural engineer it could be required to get them processed (balancing, segregation of separate phase of impact, etc.), that is not always convenient to do. Moreover, an accelerogramm with slightly different spectral composition and lifespan, nevertheless applicable to a given construction site, could be required. Also an accelerogramm could be generated with the use of specially designed software. Although it’s not always convenient as it requires certain amount of time and could cause some difficulties during formation of original data for generation and also for obtaining correct results. In order to overcome the above-mentioned difficulties the authors proposed the representative set of synthesized earthquake accelerogramms which could be applied for various combinations of seismic properties of construction sites. The present article sets outs the principal approaches to formation of the set of earthquake accelerogramms, designated for design of buildings and structures in terms of earthquake effects. Purpose requirements to discrete accelerogramms and to the set as a whole have been disclosed, purpose characteristics of accelerogramms have been set out, clarifications and recommendations for application of the representative set of accelerogramms in practical calculations have been enclosed.

DOI: 10.22227/1997-0935.2017.7.754-760

Download

Results 1 - 2 of 2