Vulnerability Analysis Concrete Tanks Liquid Storage under Air Blast

Authors

1 International Institute of Earthquake Engineering and Seismology

2 K. N. Toosi University of Technology

Abstract

According to the strategic geographic position of  IRAN with the probability of terrorist threats and air strikes, and also the important crucial role of the tanks, their construction by taking passive defense measures and considerations is necessary. Because of few researches on the vulnerability of tanks against the loads due to explosion, investigate the importance of this type of structures against blast loads is increasing. In present study a hypaethral cylindrical concrete tank, exposed to air blasting by one cubic explosive TNT with weight of 352.08 kg has been modeled. The tank is modeled in four situations such as: empty state, ,  and  of body height full of liquid. The results of simulation showed that damages of compressive and tensile in the empty tank are more critical than other modes, and the manner of hypaethral concrete tanks against explosive loads is different from their manner against seismic loads caused by the earthquake. It was also shown that the conwep method has considerate only the effects of the explosion and at least 25% reduction achieved in compressive damage compared with the results of the AUTODYN. The results of this study can be used in retrofitting and safe design of fluids storage tanks to resistance against the blast loads.

Keywords

References

[1]     Hoskins, L. M.; Jacobsen, L. S. “Water Pressure in a Tank Caused by Simulated Earthquake”; Bull. Seismological Soc. AM. 1934, 24, 1-32.##
[2]     Graham, E. W.; Rodriguez, A. M. “Characteristics of Fuel Motion Which Affect Airplane Dynamics”; J. appl. mech. 1952, 19, 381-388.##
[3]     Hamdan, F. H. “design of Liquid Storage Tanks“; Assessment of Eurocode 8 -Part4: European Seismic Design Practice, Elnashai, 1995.
[4]     Haroun, M. A. “Dynamic Analysis of Liquid Storage Tanks”; EERL80-4, 1980. ##
[5]     Epstein, H. I. “Seismic Design of Liquid Storage Tanks”; J. Struct. Division _ASCE. 1976, 102, 1659-1673.##
[6]     Melerski, E. S. “Numerical Analysis for Environmental Effects in Circular Tanks”; Thin-Wall. Struct. 2002, 40, 703-727.##
[7]     Kianoush, M. R.; Chen, J. Z. “Effect of Vertical Acceleration on Response of Concrete Rectangular Liquid Storage Tanks”; Eng. Struct. 2006, 28, 704-715.##
[8]     Livaoglu, R. “Investigation of Seismic Behavior of Fluid-Rectangular Tank-Soil/ Foundation Systems in Frequency Domain”; Soil Dyn. Earthq. Eng. 2008, 28, 132-146.##
[9]     Moslemi, M.; Kianoush, M. R. “Parametric Study on Dynamic Behavior of Cylindrical Ground-Supported Tanks”; Eng. Struct. 2012, 42, 214-230.##
[10]  Pandey, A. K.; Ram, K.; Paul, D. K.; Trikha, D. N. “Non-Linear Response of Reinforced Concrete Containment Structure Under Blast Loading”; Nuclear Eng. and Design. 2006, 236, 993-1002.##
[11]  Asgarpour, M. “Fluid-Structure-Soil Interaction Effects on Ground Concrete Tanks under Surface Blast.”; M.Sc. Thesis, Department of Passive Defence, Malake Ashter Univercity of Technology. 2012 (In Persian).##
[12]  Chaman, M. H. “Retrofitting of Steel Oil Tanks to Blast Loadings.”; M.Sc. Thesis, Department of Passive Defence, Malake Ashter Univercity of Technology. 2013 (In Persian).##
[13]  Rostaye, J. “Research, Study and Design Aboveground Steel Oil Tank under Explosive Loading.”; Research Activity, Department of Passive Defence, Malake Ashter Univercity of Technology. 2012 (In Persian)##
[14]  Unified Facilities Criteria (UFC 3-340-02) “Structures to Resist the Effects of Accidental Explosions”; US Department of Defense, Washington DC. 2008.##
[15]  Hafez, A. “Seismic Response of Ground-Supported Circular Concrete Tanks”; Ph.D. Thesis, Graduate School of Ryerson Univ. 2012.##
[16]  ANSYS Autodyn User’s Manual, SAS IP Inc., 2011.##
[17]  ASCE, “Design of Blast Resistant Building in Petrochemical Facilities”; 1997.##
[18]  INBC" Iranian National Building Code, Part 21, passive defense."; Ministry of Housing and Urban Development, Tehran. 2012 (In Persian).##
[19]  Abaqus Finite Element Software, Simulia Inc, 2010.##
[20]  Pandurangan, B. “Development, Parameterization and Validation of Dynamic Material Models for Soil and Transparent Armor Glass”; Ph.D. Thesis, Graduate School of Clemson Univ. 2009.##
Henderson, L. F."General Laws for Propagation of Shock Waves through Matter." Sidney, New South Wales 2070, Australia, by Academic Press. 2001.##

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History

  • Receive Date: 30 January 2019
  • Revise Date: 04 January 2021
  • Accept Date: 30 January 2019

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