Numerical Modeling of Roof Force in Concrete Liquid Storage Tanks.

Soltani, Pouya; Mirzabozorg, Hassan

doi:10.61186/NMCE.2406.1065

Numerical Modeling of Roof Force in Concrete Liquid Storage Tanks.

Document Type : Research

Authors

pouya soltani ¹

Hassan mirzabozorg ²

¹ Graduate Student in Structural Engineering, Civil Engineering Department, K. N. Toosi University of Technology, Tehran, Iran.

² Associate Professor, Civil Engineering Department, K. N. Toosi University of Technology, Tehran

10.61186/NMCE.2406.1065

Abstract

Liquid storage tanks are crucial in various applications, such as in industrial processes and water supply systems. It's important to understand how these tanks behave during seismic events to ensure their structural safety. This study examines the force applied to the roof of tanks when the freeboard is insufficient. To conduct the analyses, the Box-Behnken design of the experiment method was used in the study's design. Tanks were modeled using the finite element method combined with smooth particle hydrodynamics. The interaction of the stored fluid with the roof of the tank was assessed using the penalty technique and the soft constraint algorithm. The analysis results showed that the combination of two parameters, the tank length and seismic stimulation, had the most significant impact. However, the fluid height was deemed a non-influential parameter when there was not enough freeboard. Additionally, the results showed that the intensity acceleration spectrum accurately reflects the impact of frequency content on roofed tanks.

Keywords

Sloshing

FE-SPH Coupling

Box-Behnken

Concrete Storage Tank

Fluid-Structure Interaction

Subjects

Structural Engineering

[1] Malhotra PK, "Earthquake induced sloshing in tanks with insufficient freeboard. " Structural Engineering International,vol.16., 2006,222–225
[2] Malhotra, P. K. "Sloshing loads in liquid-storage tanks with insufficient freeboard", Earth quake Spectra ,vol.21 (4), 2005,1185–1192.
[3] Yoshida, Shoichi, Kazuyoshi Sekine, and Tsukasa Mitsuta. "Axisymmetric finite element analysis for sloshing response of floating roofs in cylindrical storage tanks." Journal of Environment and Engineering 5, no. 1 (2010): 27-38.
[4] Golzar, F. G., R. Shabani, S. Tariverdilo, and G. Rezazadeh. "Sloshing response of floating roofed liquid storage tanks subjected to earthquakes of different types." (2012): 051801.
[5] Livaoglu R, Turan A, El Naggar MH, Dogangun A. The numerical and empirical evaluation of structural performance of elevated tanks considering soil–structure interaction effects. Journal of Earthquake and Tsunami. 2012 Jun;6(02):1250008.
[6] Goudarzi, Mohammad Ali. "Seismic design of a double deck floating roof type used for liquid storage tanks." Journal of Pressure Vessel Technology 137, no. 4 (2015): 041302.
[7] Hosseini, Mahmood, Mohammad Ali Goudarzi, and Amirhossein Soroor. "Reduction of seismic sloshing in floating roof liquid storage tanks by using a Suspended Annular Baffle (SAB)." Journal of Fluids and Structures 71 (2017): 40-55.
[8] Nouraeidanesh, P., M. M. Kabiri, and M. A. Goudarzi. "An innovative roof shape in liquid storage tanks to reduce dynamic sloshing effects." Journal of Applied Fluid Mechanics 11, no. 1 (2018): 127-136.
[9] Soltani, Pouya, and Hassan Mirzabozorg. "Parametric analysis of sloshing in concrete liquid storage tanks: a FE-SPH coupled approach with Box-Behnken design of experiments." Journal of the Brazilian Society of Mechanical Sciences and Engineering 46, no. 6 (2024): 1-24.
[10] Ferreira, SL Costa, R. E. Bruns, Hadla Sousa Ferreira, Geraldo Domingues Matos, J. M. David, G. C. Brandão, EG Paranhos da Silva et al. "Box-Behnken design: An alternative for the optimization of analytical methods." Analytica chimica acta 597, no. 2 (2007): 179-186.
[11] de Castro Peixoto, André Luís, Ademir Geraldo Cavallari Costalonga, Mateus Nordi Esperança, and Rodrigo Fernando dos Santos Salazar. "Design of experiments applied to antibiotics degradation by Fenton’s reagent." Statistical Approaches With Emphasis on Design of Experiments Applied to Chemical Processes (2017).
[12] LSTC Inc. LS-DYNA software V.971 R11.0. (2018).
[13] LS-DYNA keyword user’s manual: nonlinear dynamic analysis of structures. Version 971, vols 1 and 2. Livermore Software Technology Corporation; October 2018.
[14] Lee, Sangmin, and Jung-Wuk Hong. "A Semi-Infinite Numerical Wave Tank Using Discrete Particle Simulations." Journal of Marine Science and Engineering 8.3 (2020): 159.
[15] Liu, Xiaohui, Songyong Liu, and Huifu Ji. "Numerical research on rock breaking performance of water jet based on SPH." Powder Technology 286 (2015): 181-192.
[16] Lee, Sangmin, and Jung-Wuk Hong. "Parametric studies on smoothed particle hydrodynamic simulations for accurate estimation of open surface flow force." International Journal of Naval Architecture and Ocean Engineering 12 (2020): 85-101.
[17] Pham, Thong M., Yifei Hao, and Hong Hao. "Sensitivity of impact behaviour of RC beams to contact stiffness." International Journal of Impact Engineering 112 (2018): 155-164.
[18] Pacific Earthquake Engineering Research Center (2005) PEER Strong Motion Database on Line. Berkley. https://peer.berkeley.edu/peer-strong-ground-motion-databases.

[19] Von Thun, J. Lawrence. "Earthquake ground motions for design and analysis of dams." Earthquake engineering and soil dynamics II-recent advances in ground-motion evaluation (1988).