Nonlinear Analysis of a Multiple Story Building Under Uniform Blast Loading

Abstract

Nowadays, due to repetitively and intense terrorist attacks on infrastructure; many specialists in the field of construction or related to the field focus their researches on this unpredictable phenomenon. In this regard it is very important to take into account the effect of explosions on buildings and infrastructures during their conceptions, especially those for administrative, diplomatic and recreational purposes which have become the main targets of these abominable acts. An explosion which takes place within or immediately nearby a building can cause catastrophic damage on the building's external and internal structural frames, collapsing of walls, blowing out of large expanses of windows, and shutting down of critical life-safety systems. Loss of life and injuries to occupants can result from many causes, including direct blast-effects, structural collapse, debris impact, fire, and smoke.

The response of reinforced concrete structures subjected to blast loads can be studied numerically using commercial finite element programs. This paper, hence, to get the structural response of structural elements within of a 6 storeys building, which is composed in frame system. A simulation of explosion which has been taking place in the ground floor of the building, using ABAQUS.

Keywords

• blast,load,structure,finite element

References

1. N. Ishikawa, H. Enrin, S. Katsuki and T. Ohta (1998), “Dynamic Behaviour of Prestressed Concrete Beams under Rapid Speed Loading”. Department of Civil Engineering, National Defence Academy, 1-10-20 Hashirimizu Yokosuka 239, Japan.
2. N Ishikawa,S Katsuki &K Takemoto(2002), “Incremental Impact Test And Simulation Of Prestressed Concrete Beam”, Structures Under Shock and Impact VII, N Jones, CA Brebbia and AM Rajendran , ISBN 1-85312-911-9(63),10.
3. J. Magnusson & M. Hallgren (2004). “Reinforced High Strength Concrete Beams Subjected to Air Blast Loading”, WIT Transactions on The Built Environment, ISSN: 1743-3509(73), 10.
4. Luccioni, B.M. and Luege, M. (2006). “Concrete Pavement Slab under Blast Loads”, International Journal of Impact Engineering 32(8): 1248-1266.
5. B.M. Luccioni, R.D. Ambrosini and R.D. Danesi, (2004). “Analysis of Building Collapse under Blast Loads”, Engineering Structures 26 (2004) 63–71.
6. Feng Fu, (2009). “Advanced Modeling Techniques in Structural Design”, Wiley Blackwell, City University London.
7. Alex M. Remennikov and Timothy A. Rose (2005), “Modelling blast loads on buildings in Complex city geometries”, Computers & Structures, 83 (27), 2197-2205.
8. Y. Qasrawi, P. J. Heffernan & A. Fam (2010). “Numerical Determination of Reflected Blast Pressure Distribution on Round Columns”, WIT Transactions on the Built Environment, Vol 113, SN 1743-3509.

9. Daniel Makovicka, Daniel Makovicka, Jr. (2010). “Simplified Evaluation of a Building Impacted by a terrorist Explosion”, WIT Transactions on The Built Environment, vol. 113, 93-103.
10. TM 5-1300 Structures to Resist the Effects of Accidental Explosions, US Army, November 1, 1990.
11. ABAQUS User’s Manual, Version 6.10, Simulia 2010.