IMPACT ANALYSIS of CYLINDRICAL STEEL WATER STORAGE TANKS UNDER the SEISMIC ACTION

Yıl 2022, Cilt: 34 Sayı: 1, 1 - 13, 30.03.2022

Ali İhsan Çelik

https://doi.org/10.7240/jeps.693157

Öz

Cylindrical steel liquid tanks are widely used to store various liquids such as water, oil and industrial chemicals. In recent years, they are used in nuclear power plants for cooling purposes. Petroleum or other hazardous chemicals in steel liquid tanks can cause large financial and environmental damage due to damages in tanks during the earthquake. The main goal of this paper is to reveal buckling shape of cylindrical steel tanks with nonlinear seismic analysis according to roof shapes. Roof shapes were determined as open-top, flat-closed, conical-closed and torispherical-closed tanks. For this aim, El-Centro earthquake recording of 0.22 seconds was used for determine the significant shell buckling events. In addition, this earthquake values are ideal for impact analysis because ANSYS Workbench “Explicit Dynamics” tool provides very good results in the dynamic analysis of structures under destructive and short-term forces. In order to provide the interaction between the water and the tank wall, the "Eulerian Body" mesh technique is preferred in “Explicit Dynamics” model. As a result of this study, many collapse events were determined due to seismic ground motion in cylindrical steel liquid storage tanks. If the tank was closed in the shape of a torispherical, less buckling could occur in the tank.

Anahtar Kelimeler

Cylindrical Steel Tanks, Nonlinear Analysis, Impact Analysis, , Seismic Analysis

Kaynakça

• [1] Inc PDaD. Impact and Collision Analaysis. Product Design and Development Inc; 2020.
• [2] Veletsos AS, Tang Y, Tang H. Dynamic response of flexibly supported liquid-storage tanks. Journal of Structural Engineering. 1992;118:264-83.
• [3] Tang Y. Dynamic response of tank containing two liquids. Journal of engineering mechanics. 1993;119:531-48.
• [4] Hunt B, Priestley N. Seismic water waves in a storage tank. Bulletin of the seismological society of America. 1978;68:487-99.
• [5] Haroun M, Housner G. Earthquake response of deformable liquid storage tanks. 1981.
• [6] Hamdan F. Seismic behaviour of cylindrical steel liquid storage tanks. Journal of constructional steel research. 2000;53:307-33.
• [7] Bayraktar A, Sevim B, Altunışık AC, Türker T. Effect of the model updating on the earthquake behavior of steel storage tanks. Journal of constructional steel research. 2010;66:462-9.
• [8] Veletsos AS, AS V. EARTHQUAKE RESPONSE OF LIQUID-STORAGE TANKS. 1977.
• [9] Liang B, Tang J-x. Vibration studies of base-isolated liquid storage tanks. Computers & structures. 1994;52:1051-9.
• [10] Chalhoub MS, Kelly JM. Shake table test of cylindrical water tanks in base-isolated structures. Journal of engineering mechanics. 1990;116:1451-72.
• [11] Virella JC, Godoy LA, Suárez LE. Fundamental modes of tank-liquid systems under horizontal motions. Engineering Structures. 2006;28:1450-61.
• [12] Maekawa A, Fujita K. Explicit nonlinear dynamic analysis of cylindrical water storage tanks concerning coupled vibration between fluid and structure. ASME 2008 Pressure Vessels and Piping Conference: American Society of Mechanical Engineers Digital Collection; 2008. p. 105-13.
• [13] Mittal V, Chakraborty T, Matsagar V. Dynamic analysis of liquid storage tank under blast using coupled Euler–Lagrange formulation. Thin-Walled Structures. 2014;84:91-111.
• [14] Nicolici S, Bilegan R. Fluid structure interaction modeling of liquid sloshing phenomena in flexible tanks. Nuclear Engineering and design. 2013;258:51-6.
• [15] Kildashti K, Mirzadeh N, Samali B. Seismic vulnerability assessment of a case study anchored liquid storage tank by considering fixed and flexible base restraints. Thin-Walled Structures. 2018;123:382-94.
• [16] Buratti N, Tavano M. Dynamic buckling and seismic fragility of anchored steel tanks by the added mass method. Earthquake Engineering & Structural Dynamics. 2014;43:1-21.
• [17] Djermane M, Zaoui D, Labbaci B, Hammadi F. Dynamic buckling of steel tanks under seismic excitation: Numerical evaluation of code provisions. Engineering Structures. 2014;70:181-96.
• [18] LeBoeuf C. ANSYS explicit dynamics takes over when implicit isn’t enough. 2020.
• [19] Standard A. 650, Welded steel tanks for oil storage. American Petroleum Institute. 2001.
• [20] Housner GW. Dynamic pressures on accelerated fluid containers. Bulletin of the seismological society of America. 1957;47:15-35.
• [21] Housner GW. Earthquake pressures on fluid containers. 1954.
• [22] Help ANSYS. Explicit Dynamic Analysis. 2020.