HYDRAULICS. ENGINEERING HYDROLOGY. HYDRAULIC ENGINEERING

Measurement method applicable to the liquid level in elevation meters

Vestnik MGSU 11/2014
  • Ambartsumyan Petros Vardgesovich - Yerevan State University of Architecture and Construction (YSUAC) Doctor of Technical Sciences, Associate Professor, Dean, Construction Department, Yerevan State University of Architecture and Construction (YSUAC), 105a Teryan str, Yerevan, 3750009, Armenia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Palikyan Frunz Akopovich - Yerevan State University of Architecture and Construction (YSUAC) postgraduate student, Department of Engineering Geodesy, Yerevan State University of Architecture and Construction (YSUAC), 105a Teryan str, Yerevan, 3750009, Armenia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 137-144

The co-authors offer a new method designated for the measurement of the liquid level inside hydrostatic and hydrodynamical elevation meters. This innovative leveling method prevents any temperature influence on the measurement results in each vessel, although the temperature inside the vessels does not need to be measured. The result is reduced to the base temperature value inside each vessel. Another strength of this method consists in its insensitivity to the liquid temperature in the vessels or to the difference of temperatures. Moreover, there is no need to be aware of the function describing the temperature to density correlation, whereas the accuracy that ensures the prevention of any influence of the temperature-induced error is solely determined by the accuracy of the liquid level registration alongside the top edge of the float. Besides, the temperature range being measured is unimportant, although it must remain within the limits that assure the preservation of the water properties (to prevent boiling, freezing, etc.).

DOI: 10.22227/1997-0935.2014.11.137-144

References
  1. Movsesyan R.A., Taplashvili I.A., Vardanyan V.N. Patent SSSR 480906. Sposob gidrodinamicheskogo nivelirovaniya. ¹ 1904526/18-10. Zayavl. 06.04.73, opubl. 15.08.75. 1975. Byull. ¹ 30 [USSR Patent 480906. Method of Hydrodynamic Leveling. No. 1904526/18-10. Appl. 06.04.73, publ. 15.08.75. 1975. Bulletin no. 30]. 3 p. (In Russian)
  2. Sinanyai R.R., Babayan G.A., Taplashvili I.A. Eksperimental'nye issledovaniya sistemy gidrodinamicheskogo nivelirovaniya s polnym tsiklom izmereniy [Experimental Investigation of Hydrodynamic Leveling System with Full Cycle of Changes]. Problemy inzhenernoy geodezii : mezhvuzovskiy tematicheskiy sbornik nauchnykh trudov [Problems of Engineering Geodesy : Interuniversity Subject Collection of Scientific Works]. Erevan, ErPI Publ., 1983, pp. 34—41. (In Russian)
  3. Movsesyan R.A, Pogosyan A.G., Babayan G.A., Dzhenteredzhyan A.G. Patent SSSR 1106989. Sistema gidrodinamicheskogo nivelirovaniya. 3612045/18-10. Zayavl. 29.06.83, opubl. 07.08.84. 1984. Byul. ¹ 29 [USSR Patent 1106989. Hydrodynamic Leveling System. 3612045/18-10. Appl. 29.06.83, publ. 07.08.84. 1984. Bulletin no. 29]. 5 p. (In Russian)
  4. Beglaryan A.G., Ambartsumyan P.V., Babayan G.S., Pogosyan V.V. K voprosu teoreticheskogo obosnovaniya sposoba gidrostaticheskogo nivelirovaniya [To the Problem of Theoretical Justification of Hydrodynamic Leveling Method]. Izvestiya ERGUAS [News of Yerevan State University of Architecture and Construction]. 2011, no. 6, pp. 3—6. (In Russian)
  5. Schell G. Sistematische Fehler des hydrostatischen Nivellements und Verfahren zu ihrer Ausschalting. Ver?ff Dtsch. Geod. Komiss Bayer Akad. Wiss., D,m 1956, no. 27.
  6. Svagr V. Vyuziti soupravy hydrostatisckech var problemi presnou nivelaci v dolech. Prace vyzkum ustavu, Rudy. 1962, no. 8, 10, 11.
  7. Movsesyan R.A., Barkhudaryan A.M. Teoreticheskie osnovy gidrodinamicheskogo nivelirovaniya [Theoretical Basis of Hydrodynamic Leveling]. Izvestiya vuzov. Geodeziya i aerofotos"emka [News of the Institution of Higher Education. Geodesy and Aerial Survey]. 1976, no. 1, pp. 9—14. (In Russian)
  8. Vardanyan V.N., Taplashvili I.A., Beglaryan A.G. Eksperimental'noe issledovanie opredeleniya popravok za temperaturu pri gidrodinamicheskom nivelirovanii [Experimenta; Study of Temperature Correction Determination at Hydrodynamic Leveling]. Geodeziya i kartografiya [Heodesy and Mapping]. 1984, no. 4, pp. 27—28. (In Russian)
  9. Barkhudaryan A.M., Movsesyan R.A. Uchet vliyaniya temperatury na tochnost' izmereniy pri gidrodinamicheskom nivelirovanii [Account for Temperature Changes Influence on Accuracy of Measurements at Hydrodynamic Leveling]. Izvestiya vuzov. Geodeziya i aerofotos"emka [News of the Institution of Higher Education. Geodesy and Aerial Survey]. 1981, no. 6, pp. 12—16. (In Russian)
  10. Trozyan K.R. Opredelenie prevysheniya tochek s pomoshch'yu gidrodinamicheskogo nivelirovaniya [Determining the Difference in Level between Points with the Help of Hydrodynamic Leveling]. Izvestiya Akademii nauk Armyanskoy SSR. Nauka o Zemle. XXXIII [News of Armenian SSR Academy of Sciences. Earth Science. XXXIII]. 1980, no. 6, pp. 96—102. (In Russian).
  11. Vasyutinskiy I.Yu. Gidrodinamicheskoe nivelirovanie [Hydrodynamic Leveling]. Moscow, Nedra Publ., 1976, 167 p. (In Russian)
  12. Barkhudaryan A.M., Movsesyan R.A., Ambartsumyan P.V. Opredelenie prevysheniy pri gidrodinamicheskom nivelirovanii [Determination of Exceedances in the Process of Hydrodynamic Leveling]. Izvestiya Akademii nauk Armyanskoy SSR. Seriya: Tekhnicheskie nauki. XXXVI [News of Armenian SSR Academy of Sciences. Series: Technicak Sciences. XXXVI]. 1983, no. 2, pp. 33—37. (In Russian)
  13. Barkhudaryan A.M., Movsesyan R.A., Ambartsumyan P.V. Patent SSSR 1044975. Sposob gidrodinamicheskogo nivelirovaniya. ¹ 3367285/18-10. Zayavl. 11.12.,81, opubl. 30.09.83. 1983. Byul. ¹ 36 [USSR Patent 1044975. Hydrodynamic Leveling Method. No. 3367285/18-10. Appl. 11.12.,81, publ. 30.09.83. 1983. Bulletin no. 36]. 4 p. (In Russian)
  14. Ambartsumyan P.V. Opredelenie osadkov fundamentov sooruzheniy i oborudovaniya 5-go energobloka Razdanskoy TES s ispol'zovaniem gidronivelirovaniya [Determination of Foundation Settlement of the Structures and Equipment of the 5th Electric Power Unit of Razdan TPP with Application of Hydrodynamic Leveling]. Sbornik nauchnykh trudov ErGUAS [Collection of Scientific Papers of Yerevan State University of Architecture and Construction]. 2012, vol. III (46), pp. 98—102. (In Russian)
  15. Kiviniemi A. Measurements of Wave Motion in the Ice Surface. Suomen geod. Laitok, tied. 1975, no. 4, 12 p.

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Dynamic monitoring of engineering structures as a key element of its technical security

Vestnik MGSU 3/2014
  • Patrikeev Aleksandr Vladimirovich - Centre for Diagnostics and Monitoring (TsDM) Candidate of Technical Sciences, Director, Monitoring Department, Centre for Diagnostics and Monitoring (TsDM), 95A Varshavskoye shosse, Moscow, 117556, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 133-140

On an example of a complex engineering structure with aerodynamically unfavorable constructive form, equipped with mechanisms dampers, the results of long-term observations of the oscillation frequency under the influence of wind loads were reviewed. The experimental dependence of the first tone oscillation frequency on time for this structure is shown. The hypothesis on the causes of frequency oscillations change in engineering structures in time is proposed. The experimental data confirms this hypothesis. The results of a comparison of the experimental data for long-term observations with the oscillation frequency in accordance with the safety criteria of GOST 31937-2011 “Buildings and Constructions. Rules of inspection and monitoring of the technical condition” are shown. It has been shown that the results of comparison indicate technical safety of the whole object. It is offered to use dynamic monitoring systems for technically complex heavy-duty engineering structures for early detection of the transition beginning of the control object to the limited functional or emergency condition.

DOI: 10.22227/1997-0935.2014.3.133-140

References
  1. Shablinskiy G.E. Monitoring unikal'nykh vysotnykh zdaniy i sooruzheniy na dinamicheskie i seysmicheskie vozdeystviya [Monitoring of Unique High-rise Buildings and Structures for the Dynamic and Seismic Effects]. Moscow, ASV Publ., 2013, 328 p.
  2. Novak Yu.V., Vinogradova O.A., Solomentsev M.E. Dinamicheskie metody ispytaniya mostovykh konstruktsiy i unikal'nykh sooruzheniy[Dynamic Test Methods of Bridge Structures and Unique Structures]. Transportnoe stroitel'stvo [Transport Construction]. 2009, no. 7, pp. 2—4.
  3. Metodicheskie rekomendatsii po vibrodiagnostike avtodorozhnykh mostov [Guidelines for Highway Bridges Vibrodiagnostics]. Moscow, Rosavtodor Publ., 2001, 25 p.
  4. Kapustyan N.K. Seysmobezopasnost': obobshchenie opyta monitoringa zdaniy i sooruzheniy [Seismic Safety: Summarizing the Experience of Monitoring of Buildings and Structures]. Proektirovanie i inzhenernye izyskaniya [Design and Engineering Surveys]. 2012, no. 4 (18). Available at: http://www.acdjournal.ru/Priz%2018/3/p.html.
  5. Monitoring sostoyaniya zdaniy [Monitoring of Building Condition]. Tsentr tekhnicheskikh obsledovaniy OOO «IST». [Technical Survey Center LLC «IST»]. Novosibirsk, 2012. Available at: http://toist.ru. Date of access: 13.12.13.
  6. Patrikeev A.V., Salatov E.K., Spiridonov V.P. Dinamicheskiy monitoring zdaniy i sooruzheniy kak odin iz kriteriev obespecheniya bezopasnoy ekspluatatsii [Dynamic Monitoring of Buildings and Structures as One of the Criteria for the Safe Exploitation]. Tekhnologicheskie problemy prochnosti: Materialy 18 Mezhdunarodnogo seminara [Collected Works of the 18th International Seminar «Technological Problems of Strength»]. Podol'sk, 2011, pp. 78—81.
  7. Ostroumov B.V. Uvelichenie obshchego dempfi rovaniya vysotnykh sooruzheniy pri ustanovke na nikh dinamicheskikh gasiteley kolebaniy s zatukhaniem [Increase of the Total Damping of High-rise Buildings when Installing Dynamic Vibration Absorbers with Damping]. Montazhnye i spetsial'nye raboty v stroitel'stve [Mounting and Special Works in Construction]. 2005, no. 9, pp. 22—24.
  8. Patrikeev A.V. Povyshenie urovnya bezopasnosti inzhenernykh sooruzheniy na primere Glavnogo monumenta pamyatnika Pobedy na Poklonnoy gore v g. Moskve [Improvement of Safety of Engineering Structures Exemplifi ed by the Main Monument of the Victory Memorial on Poklonnaya Hill in the City of Moscow]. Problemy upravleniya kachestvom gorodskoy sredy: 11 nauchno-prakticheskaya konferentsiya. 27—28.09.2007 [Problems of the Urban Environment Quality Management. Collected works of the 11th Scientific and Practical Conference «Problems of Quality Management of the Urban Environment»]. Moscow, RAGS Publ., 2007, p. 82.
  9. Patrikeev A.V., Salatov E.K. Osnovy metodiki dinamicheskogo monitoringa deformacionnykh kharakteristik zdaniy i soorzhjeniy [Fundamentals of the Method of Dynamic Monitoring of Deformation Characteristics of Buildings and Structures]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 1, pp. 133—138.

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FUNDAMENTALS OF THE METHOD OF DYNAMIC MONITORING OF DEFORMATION CHARACTERISTICS OF BUILDINGS AND STRUCTURES

Vestnik MGSU 1/2013
  • Patrikeev Aleksandr Vladimirovich - Centre for Diagnostics and Monitoring (TsDM) Candidate of Technical Sciences, Director, Monitoring Department, Centre for Diagnostics and Monitoring (TsDM), 95A Varshavskoye shosse, Moscow, 117556, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Salatov Evgeniy Konstantinovich - 22 Pavla Korchagina St., Moscow, 129626, Russian Federation +7 (495) 683-99-93., 22 Pavla Korchagina St., Moscow, 129626, Russian Federation, ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 133-138

The article covers the relevant problem of dynamic monitoring of buildings and structures. Items exposed to dynamic monitoring primarily include high-rise buildings and structures, as well as buildings and structures exposed to crane loads.The authors provide the general procedure of dynamic monitoring and describe its principal stages. The whole succession of actions that constitute the monitoring of the technical condition of buildings and structures can be split into several stages to be stretched over the time period. The authors demonstrate the technical specifications (including dynamic parameters) of a building or a structure in the process of its operation in the form of a graph. The authors propose their methodology of dynamic monitoring that is considered on the basis of a simple example. The authors argue that the more technically sophisticated the item to be monitored, the tougher the requirements designated for its safe operation; therefore, the interval between the stages of monitoring should be shorter. Unique structures may need monitoring using automated stationary systems to be designed within the framework of special-purpose projects.

DOI: 10.22227/1997-0935.2013.1.133-138

References
  1. Balageas D., Fritzen C.P., Guemes A. Structural Health Monitoring. Publ. ISTE Ltd, London, 2006, 496 p.
  2. Korgin A.V., Shablinskiy G.E., Sergeevtsev E.Yu., Zubkov D.A. Dinamicheskiy monitoring konstruktsiy dekorativnogo navesa i peshekhodnogo mosta v aeroportu Sheremet'evo-3 [Dynamic Monitoring of Structures of a Decorative Shed and a Pedestrian Bridge at Sheremetyevo-3 Airport]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 4, pp. 222—228.
  3. Lazebnik G. E, Kosheleva N.N. Monitoring nesushchikh konstruktsiy zdaniy povyshennoy etazhnosti [Monitoring of Bearing Structures of Excess Height Buildings]. Svit geotekhniki [The World of Geotechnics]. 2009, no. 1, pp. 14—18.
  4. Gur'ev V.V., Dorofeev V.M. O monitoringe tekhnicheskogo sostoyaniya nesushchikh konstruktsiy vysotnykh zdaniy i shirokoproletnykh sooruzheniy [On the Monitoring of the Technical Condition of Bearing Structures of High-rise Buildings and Large-span Structures]. Stroitel'nye materialy, oborudovanie, tekhnologii XXI veka [Construction Materials, Machinery, Technologies of the 21st Century]. 2006, no. 7(90), pp. 68—69.
  5. GOST R 53778—2010. Zdaniya i sooruzheniya. Pravila obsledovaniya i monitoringa tekhnicheskogo sostoyaniya. Data vvedeniya 2011-01-01. [State Standard of Russia 53778—2010. Buildings and Structures. Rules of Inspection and Monitoring of Their Technical Condition. Date of Introduction 2011-01-01]. Moscow, 2010, 67 p.
  6. Ulybin A.V., Vatin N.I. Printsipial'nye otlichiya GOST R 53778—2010 ot starykh normativov po obsledovaniyu zdaniy i sooruzheniy [Principal Differences between State Standard R 53778-2010 from Former Regulations Applicable to Inspection of Buildings and Structures]. Gidrotekhnika [Hydraulic Engineering]. 2011, no. 2(23), pp. 54—56.
  7. GOST R 54859—2011. Zdaniya i sooruzheniya. Opredelenie parametrov osnovnogo tona sobstvennykh kolebaniy. Data vvedeniya 2012-01-07. [State Standard of Russia Buildings and Structures 54859—2011. Identification of Parameters of the Basic Tone of Natural Oscillations of Buildings. Date of Introduction 2012-01-07]. Moscow, 2012, 64 p.
  8. Patrikeev A.V. Povyshenie urovnya bezopasnosti inzhenernykh sooruzheniy na primere Glavnogo monumenta pamyatnika Pobedy na Poklonnoy gore v g. Moskve [Improvement of Safety of Engineering Structures Exemplifi ed by the Main Monument of the Victory Memorial on Poklonnaya Hill in the city of Moscow]. Problemy upravleniya kachestvom gorodskoy sredy [Problems of the Urban Environment Quality Management]. Collected works of the 11th Scientific Conference. Moscow, RAGS Publ., 2007, p. 82.
  9. Patrikeev A.V., Salatov E.K., Spiridonov V.P. Dinamicheskiy monitoring zdaniy i sooruzheniy kak odin iz kriteriev obespecheniya bezopasnoy ekspluatatsii [Dynamic Monitoring of Buildings and Structures as One of the Criteria of Their Safe Exploitation]. Tekhnologicheskie problemy prochnosti [Technological Problems of Strength]. Collected works of the XVIII International Seminar. Podol'sk, 2011, pp. 78—81.
  10. Korenev B.G., Rabinovich I.M. Spravochnik po dinamike sooruzheniy [Reference Book on Dynamics of Structures]. Moscow, Stroyizdat Publ., 1972, 511 p.

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