Abstract
Recent terrorist attacks on important buildings raised the significance of analysis of structures under blast loads in order to seek mitigations measures to have safer structures under such threats. Most of recent studies consider the superstructure only since it is the major part affected by the blast loads. However, the foundations may be affected severely as well. This can make the superstructure repair is impractical or inefficient. In this research, detailed finite element analysis using ABAQUS was used to study the effect of blast loads on the response of soil and nine reinforced concrete piles buried in the soil and connected by a 10 m × 10 m × 1.0 m reinforced concrete raft. The piles have a 0.6 m diameter and a length of 20 m. Drucker-Prager Cap model was used to model the soil behavior. The model accounts for soil hardening and softening and stress path dependence. The raft and piles were modelled using 8-node solid elements with reduced integration. The concrete damage plasticity model was used to model the reinforced concrete material for the pile and raft. The blast load was considered through several explosive weights of TNT at a height of 0.66 m above ground surface. The effect of standoff distance was studied through five different distances from the raft edge. Finally, observations and recommendations were provided to enhance the response of pile foundations under blast loads.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Ismail, M., Ibrahim, Y., Nabil, M., Ismail, M.M.: Response of A 3-D reinforced concrete structure to blast loading. Int. J. Adv. Appl. Sci. 4(10), 46–53 (2017)
Ibrahim, Y.E., Ismail, M.A., Nabil, M.A.: Response of reinforced concrete frame structures under blast loading. Procedia Eng. 171, 890–898 (2017)
Fu, F.: Dynamic response and robustness of tall buildings under blast loading. J. Constr. Steel Res. 80, 299–307 (2013)
Choi, J., Choi, S., Kim, J.J., Hong, K.: Evaluation of blast resistance and failure behaviour of prestressed concrete under blast loading. Constr. Build. Mater. 173, 550–572 (2018)
Ritchie, C.B., Packer, J.A., Seica, M.V., Zhao, X.: Behaviour and analysis of concrete-filled rectangular hollow sections subject to blast loading. J. Constr. Steel Res. 147, 340–359 (2018)
Hadianfard, M.A., Malekpour, S., Momeni, M.: Reliability analysis of H-section steel columns under blast loading. Struct. Saf. 75, 45–56 (2018)
Baker, W.E.: Explosions in Air. University of Texas Press, Austin, TX (1973)
ASCE: Manual 42, Design of Structures to Resist Nuclear Weapons Effects. American Society of Civil Engineers, New York City, NY (1985)
Cooper, P.W.: Explosives Engineering. Wiley, Hoboken, NJ (1996)
DOD: Structures to Resist the Effects of Accidental Explosions. Unified Facilities Criteria (UFC) 3–340–02. Department of Defense, Arlington, VA (2008)
DOD: Fundamentals of Protective Design for Conventional Weapons. TM 5–855–1. Department of Defense, Arlington, VA (1986)
ABAQUS 6.14 User Documentation, Dessault Systems (2018)
ANSYS. AUTODYN User’s Manual. ANSYS Inc., Canonsburg, PA (2018)
LS-DYNA User’s Manual, Livermore Software Technology Corporation (2018)
Larcher, M.: Simulation of the Effects of an Air Blast Wave. JRC Technical Notes (JRC) 41337. Luxembourg: European Communities (2007)
Kinney, G.F., Graham, K.J.: Explosive Shocks in Air. Springer-Verlag, Berlin, Germany (1985)
Krauthammer, T., Altenberg, A.: Negative phase blast effects on glass panels. Int. J. Impact Eng. 24, 1–17 (2000)
Smith, P.D., Hetherington, J.G.: Blast and Ballistic Loading of Structures. Butterworth-Heinemann, Oxford, England (1994)
Wang, Z., Lu, Y., Bai, C.: Numerical analysis of blast-induced liquefaction of soil. Comput. Geotech. 35(2), 196–209 (2008)
Wilt, T., Ofoegbu, G., Hsiung, S.: Vulnerability Assessment of Buried Near-Surface Structures Subject to Ground Surface Blasts. Center for Nuclear Waste Regulatory Analyses, San Antonio, TX (2012)
NUREG/CR-7201: Characterizing Explosive, Effects on Underground Structures, Center for Nuclear Waste Regulatory Analyses, U.S. Nuclear Regulatory Commission Washington DC 20555-0001 (2015)
Huang, T.K., Chen, W.F.: Simple procedure for determining cap-plasticity-model parameters. J. Geotech. Eng. 116(3), 492–513 (1990)
Nagy, N., Mohamed, M., Boot, J.C.: Nonlinear numerical modelling for the effects of surface explosions on buried reinforced concrete structures. Geomech. Eng. 2, 1–18 (2010)
Martin, O.: Comparison of different Constitutive Models for Concrete in ABAQUS/Explicit for Missile Impact Analyses, JRC Scientific and Technical Reports. EUR 24151, European Commission, Joint Research Centre, Institute for Energy (2010)
Chopra, A.K., Chakrabarti, P.: The Koyna earthquake and the damage to the Koyna dam. Bull. Seism. Soc. Am. 63(2), 381–397 (1973)
Acknowledgement
The authors would like to express their thanks to Prince Sultan University for funding the attendance of the conference and publishing the journal article.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Ibrahim, Y.E., Nabil, M. (2020). Finite Element Analysis of Pile Foundations Under Surface Blast Loads. In: Wahab, M. (eds) Proceedings of the 13th International Conference on Damage Assessment of Structures. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-8331-1_32
Download citation
DOI: https://doi.org/10.1007/978-981-13-8331-1_32
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-8330-4
Online ISBN: 978-981-13-8331-1
eBook Packages: EngineeringEngineering (R0)