Performance of Simplified Damage Assessment Tools for Reinforced Concrete Panels under Blast Loading

Abstract:

Pressure-impulse (P-I) and charge weight-distance (CW-D) diagrams are widely used as quick damage assessment tools for reinforced concrete (RC) elements exposed to blast loading. Depending on the loading and element properties, the blast loading can induce different patterns of response and damage. Appropriate application of different simplified damage assessment tools for both far-field and near-field blast effects can be significantly challenging. This paper presents the comparison of the performances of two commonly used simplified damage assessment methods for RC elements exposed to explosive loading. Different aspects of the simplified damage assessment methods related to their construction and application for damage assessment are investigated. Some specific limitations of construction and use of P-I and CW-D diagrams are explored. Suitability of P-I diagrams for far-field and near-field blast effects is also explored. P-I diagrams are found to provide misleading damage assessment when applied for near-field blast effects.

• Periodical: Key Engineering Materials (Volumes 594-595)
• Pages: 492-497
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.594-595.492
• Online since: December 2013
• Authors: Zubair Imam Syed, Mohd Shahir Liew, Priyan Mendis
• Keywords: Blast Loading, Charge Weight-Distance Diagram, Pressure-Impulse Diagram

References

[1] Q.M. Li and H. Meng: Journal of Engineering Mechanics, Vol. 128, no 1(2002).

[2] G.W. Ma, H.J. Shi and D.W. Shu: International Journal of Impact Engineering, 34(2007), p.1081.

[3] X. Huang, G.W. Ma and J.C. Li: International Journal of Protective Structures, Vol. 1, no 1(2010), p.103.

[4] G. Mays and P.D. Smith: Blast Effects on Buildings: Design of Buildings to Optimize Resistance to Blast Loading (T. Telford, London 1995).

[5] T. Krauthammer: Modern Protective Structures (CRC Press, London 2008).

[6] D.O. Dusenberry: Handbook of Blast Resistant Design of Buildings (John Wiley & Sons, New Jersey 2010).

[7] C.J. Oswald and D. Skerhuf: FACEDAP User's Manual. U.S. Army Corps of Engineers (1993).

[8] PDC-TR 08-07: Methodology Manual for Component Explosive Damage Assessment Workbook, USA Protective Design Center Technical Report (2008).

[9] FEMA 426: Reference Manual to Mitigate Potential Terrorist Attacks against Buildings: US Federal Emergency Management Agency (2003).

[10] PDC-TR 06-08: Single Degree of Freedom Structural Response Limits for Antiterrorism Design: U.S. Army Corps of Engineers (2008).

[11] G. Tanapornraweekit: Behaviour of Fibre Reinforced Polymer (FRP) Strengthened RC Slabs Subjected to Blast Loading. PhD thesis, The University of Melbourne (2010).

[12] A.S. Fallah and L. A. Louca: International Journal of Impact Engineering, Vol. 34 No. 4 (2006), p.823.

[13] Z. Syed, P. Mendis, N. Lam and T. Ngo, in: Proceeding of Annual Technical Conference of the Australian Earthquake Engineering Society (2006).

[14] Mathworks. (2010). MATLAB Version 7. 10 Natick, MA: MathWorks.

[15] LS-DYNA. (2009). LS-DYNA Keyword User's Manual, Version 971 / Release 4. Livermore, US: Livermore Software Technology Corporation (LSTC).

[16] T. Ngo: Behaviour of High Strength Concrete Subject to Impulsive Loading. PhD thesis, The University of Melbourne (2005).

[17] UFC 3-340-02: Structures to Resist the Effects of Accidental Explosions (Unified Facilities Criteria), US Department of Defense (2008).

[18] Y. Shi, H. Hao and Z. Li: International Journal of Impact Engineering, Vol. 35 (2008), p.1213.