Farklı Geometrilere Sahip Petrol Depolama Tanklarının Sismik Analizi

Yıl 2024, Cilt: 27 Sayı: 2, 489 - 501, 27.03.2024

Hussein Neamah Abualshun Janabı Hüseyin Gökçe , Ender Sarıfakıoğlu

https://doi.org/10.2339/politeknik.1127303

Cited By: 1

Öz

Petrol depolama tankları, dinamik ve sismik yüklere dayanacak şekilde tasarlanmalıdır. Büyük hacme sahip petrol tanklarının depremler altında güvenliğinin sağlanması oldukça önemlidir. Deprem süresince arazi yüzeyi bütün yönlere doğru hareket etmekte ve bunun sonucu olarak tank titreşimlere maruz kalmaktadır. Özellikle arazi yüzeyine paralel hareketler tankta titreşimler meydana getirmekte, tank duvarlarında beklenmedik deformasyonlara neden olmaktadır. Bu çalışmada, sismik koşullar altında üç farklı geometriye sahip petrol tanklarında meydana gelebilecek muhtemel deformasyonlar doluluk oranlarına bağlı olarak incelenmiştir. Çalışmada sonlu elemanlar yöntemi temeline dayanan bir paket programdan yararlanılmıştır. Test edilen modellerin hızlanma ve deformasyon gibi numune tepkileri gözlemlenerek sonuçlar önceki çalışmalarla mukayese edilmiş ve doğrulanmıştır. Sonuçlar, yağ seviyesi, tank şekli ve mod değişimi arasında net bir ilişki olduğunu ortaya koymuştur. Daha yüksek yağ seviyesi, her durumda daha yüksek doğal frekans sundu. Tepki spektrum modeli, yağ seviyesi arttığında bir artış olduğu gözlemlendi.

Anahtar Kelimeler

Petrol tankları, Dinamik yükler, Deprem etkisi, Sonlu elemanlar yöntemi

Seismic Analysis Of Oil Storage Tanks With Different Geometries

Öz

Oil storage tanks must be designed to withstand dynamic and seismic loads. It is very important to ensure the safety of oil tanks with large volumes under earthquakes. During the earthquake, the land surface moves in all directions and as a result, the tank is exposed to vibrations. Especially the movements parallel to the land surface create vibrations in the tank and cause unexpected deformations on the tank walls. In this study, possible deformations that may occur in oil tanks with three different geometries under seismic conditions are investigated depending on their filling ratios. In the study, a package program based on the finite element method was used. By observing the sample responses such as acceleration and deformation of the tested models, the results were compared and confirmed with previous studies. The results revealed a clear relationship between oil level, tank shape and mode change. The higher oil level offered higher natural frequency in any case. The response spectrum model observed an increase when the oil level increased.

Anahtar Kelimeler

Oil tanks, Dynamic loads,, Earthquake effect, Finite element method

Kaynakça

• [1] Sivý M., Musil M., Chlebo O. and Havelka R., “Sloshing effects in tanks containing liquid”, MATEC Web Conf, 107: 2-7, (2017).
• [2] Gulin M., Uzelac I., Dolejš J. and Boko I., “Design of liquid-storage tank: results of software modeling vs calculations according to eurocode”, Advances in Civil and Architectural Engineering, 8(15): 85-97, (2017).
• [3] Tsipianitis A. and Tsompanakis Y., “Impact of damping modelling on the seismic response of base-isolated liquid storage tanks”, Soil Dynamics and Earthquake Engineering, 121: 281-292, (2019).
• [4] Jadhav M.B. and Jangid R.S., “Response of base-isolated liquid storage tanks”, Shock and Vibration, 11(1): 33–45, (2004).
• [5] Shi P., O’Rourke T.D., Wang Y. and Fan K., “Seismic response of buried pipelines to surface wave propagation effects”, 14th World Conference on Earthquake Engineering, 2: 3-8, (2008).
• [6] Housner G.W., “Dynamic pressures on accelerated fluid containers”, Bulletin of the Seismological Society of America, 47(1): 15-35, (1957).
• [7] Martin S. and Musil M, “Journal of mechanical engineering”, Strojnícky Časopis Seismic Resistance Of Storage Tanks Containing Liquid In Accordance With Principles of Eurocode 8 Standard, 66(2): 79–88, (2016).
• [8] Pascal R. and Varma C.K.P., “Seismic analysis of oil storage tanks”, International Research Journal of Engineering and Technology (IRJET), 6(03): 1240–1244, (2015).
• [9] Ovesen K., “Geotechnical code of practice”, Ein Dienst der ETH-Bibliothek, 65: 260-280, (1992).
• [10] Gu T., “Effect of edge beam deformations on the slab panel method”, Msc. Thesis, University of Canterbury, 97 page, New Zealand, (2016).
• [11] Nayak C.B. and Thakare S.B., “Archive of SID seismic performance of existing water tank after condition ranking using non‑destructive testing”, International Journal of Advanced Structural Engineering, 11(4): 395–410, (2019).
• [12] Ahad F.E., Shi D. and Hina Z., “Computational approaches to vibration analysis of shells under different boundary conditions - a literature review”, Journal of Vibroengineering, 19(1): 14-27, (2014).
• [13] Rawat A., Matsagar V. and Nagpal A.K., “Finite element analysis of thin circular cylindrical shells”, Proceedings of the Indian National Science Academy, 82(2): 349–355, (2016).
• [14] El-Zeiny A.A., “Factors affecting the nonlinear seismic response of unanchored tanks”, 16th ASCE Engineering Mechanics Conference, 1-9, UK, (2003).
• [15] Chen X. and Ye K, “Free vibration analysis for shells of revolution using an exact dynamic stiffness method”, Mathematical Problems in Engineering, 1: 3-12, (2016).
• [16] Vathi M., Pappa P. and Karamanos S.A., “Seismic response of unanchored liquid storage tanks”, American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, 8: 3-7, (2013).
• [17] Annam, M.K. and Sastry P.R., “Dynamic analysis and design of foundations for liquid storage tanks”, Earthquakes and Structures. Lecture Notes in Civil Engineering, 188, (2022).
• [18] Miladi S., Razzaghi M.S., “Failure analysis of an un-anchored steel oil tank damaged during the Silakhor earthquake of 2006 in Iran”, Engineering Failure Analysis, 96: 31-43, (2019).
• [19] Çelik, A.İ. , Köse, M.M. , Akgül, T. and Apay, A.C., “Strengthening of cylindrical steel water tank under the seismic loading”, Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 21(4): 334-345, (2018).
• [20] Rawat A, Matsagar V. and Nagpal A.K., “Seismic analysis of steel cylindrical liquid storage tank using coupled acoustic-structural finite element method for fluid-structure interaction”, International Journal of Acoustics and Vibration, 25(1): 27-40, (2020).
• [21] Maraveas C., “Analysis and structural behavior of cylindrical steel tanks under seismic effects”. 12th International Conference on Metal Structures – ICMS, Wrocław, 476-485 (2011).
• [22] Zhao Y., Li H.N., Fu X., Zhang S. and Mercan O. “Seismic analysis of a large LNG tank considering the effect of liquid volume”, Shock and Vibration, 8889055, (2020).
• [23] Zhao Y., Li H.N., Fu X., Zhang S. and Mercan O. “Seismic analysis of a large LNG tank considering the effect of liquid volume”, Shock and Vibration, 8889055, (2020).
• [24] Veletsos A. and Ventura C., “Efficient analysis of dynamic response of linear systems”, Earthquake Engineering & Structural Dynamics, 12, 521–536, (1984).
• [25] Deoda V., Adhikary S. and Srinivasa R.V., “Seismic analysis of earthen dams subjected to spectrum compatible and conditional mean spectrum time histories”, Journal of Civil Engineering, 14(1): 82–96, (2020).
• [26] Hanskat C.S., Archibald J.P. and Bennett W.N., “Seismic design of liquid-containing concrete structures”, Requirements for Environmental Engineering Concrete Structures, ACI Committee, 350-38, USA, (2001).
• [27] Kumar P.D., Aishwarya A. and Maiti P.R., “Comparative study of dynamic analysis of rectangular liquid filled containers using codal provisions”, Procedia Engineering, 144: 1180-1186, (2016).
• [28] Al-Busoda B.S., Awn S.H.A. and Abbase H.O., “Numerical modelling of retaining wall resting on expansive soil”, Geotechnical Engineering, 48(4): 116-121, (2017).
• [29] Jaiswal O.R., Rai D.C. and Jain S.K., “Review of seismic codes on liquid-containing tanks”, Earthquake Spectra, 23(1): 239-260, (2007).
• [30] Kotrasova K., Kormaníková E. and Leoveanu I.S., “Seismic analysis of elevated reservoirs”, Proc. 13th International Multidisciplinary Scientific Geoconference SGEM, 4: 293-300, (2013).
• [31] Çelik A.İ., Köse M.M., Akgül T. and Alpay A.C., “Directional-deformation analysis of cylindrical steel water tanks subjected to el-centro earthquake loading”, Sigma J Eng & Nat Sci, 36(4): 1033–1046, (2018).
• [32] Gökçe H., Yavuz M., Gökçe H. and Şeker U., “Verification with finite element methods of drilling performance for original drill geometry”, Gazi Journal of Engineering Sciences, 3(1): 27-34, (2017).
• [33] Malhotra P.K., Wenk T. and Wieland M., “Simple procedure for seismic analysis of liquid-storage tanks”, Journal of the International Association for Bridge and Structural Engineering (IABSE), 10(3): 197–201, (2000).
• [34] Gökçe H., Çiftçi İ. and Gökçe H., “An investigation into the experimental and finite element analysis of cutting forces in milling: a study on machining of pure molybdenum”, Journal of Polytechnic, 22(4): 947-954, (2019).
• [35] Gökçe H., Yavuz M. and Karayel M, “Dynamometer design and manufacturing for cutting force definition on machining process”, Gazi Journal of Engineering Sciences, 3(2): 27-32, (2017).