Behaviour of a Blast Loaded Laced Reinforced Concrete Structure

  • N. Anandavalli Structural Engineering Research Centre, Chennai
  • N. Lakshmanan Structural Engineering Research Centre, Chennai
  • Nagesh R. Iyer Structural Engineering Research Centre, Chennai
  • Amar Prakash Structural Engineering Research Centre, Chennai
  • K. Ramanjaneyulu Structural Engineering Research Centre, Chennai
  • J. Rajasankar Structural Engineering Research Centre, Chennai
  • Chitra Rajagopal Structural Engineering Research Centre, Chennai
Keywords: Laced reinforced concrete, storage structure, separation distance, blast resistant design

Abstract

According to existing provisions, large separation distance has to be maintained between two conventional explosive storage structures to prevent sympathetic detonation. In this paper, reduction of the separation distance with the use of earth covered laced reinforced concrete (LRC) storage structure is demonstrated, which will result in saving of land cost. Details of blast resistant design of 75T (NEC) storage structure based on unit risk principle are presented. Performance of the storage structure is evaluated in an actual blast trial. Strain and deflection profiles are obtained from the trial. Based on these, the storage structure is found to be re-usable after the blast trial.

Defence Science Journal, 2012, 62(5), pp.284-289, DOI:http://dx.doi.org/10.14429/dsj.62.820

Author Biographies

N. Anandavalli, Structural Engineering Research Centre, Chennai
Ms N. Anandavalli received her ME (Structural Engineering) from PSG College of Technology, Coimbatore. Currently working as a Senior Scientist, Shock and Vibration Group at  CSIR-Structural Engineering Research Centre (SERC), Chennai, India. Her research interests include: Dynamic behaviour of structures under shock loads, and finite element analysis.
N. Lakshmanan, Structural Engineering Research Centre, Chennai
Dr N. Lakshmanan received his PhD from the Indian Institute of Technology Madras, Chennai. He is former Director, CSIR-SERC, Chennai, India. His research interests include: Dynamic behaviour of reinforced concrete structures under wind, blast and earthquake loading, design of heavy-duty structures, and industrial structures subjected to wind loading.
Nagesh R. Iyer, Structural Engineering Research Centre, Chennai
Dr Nagesh R. Iyer received his PhD from Indian Institute of Science, Bengaluru. Currently working as a Director, CSIR-SERC,Chennai, India. His research interests include: Finite element methods, computational structural mechanics, performance evaluation of structures, fracture mechanics, damage mechanics, innovative sustainable and/or engineered materials.
Amar Prakash, Structural Engineering Research Centre, Chennai
Mr Amar Prakash received his MTech(Earthquake Engg. & Structural Dynamics) from University of Roorkee, India. Presently working as a Scientist at Shock and Vibration Group, CSIRSERC, Chennai. His research interests include: Mesh free methods, impact load on structures.
K. Ramanjaneyulu, Structural Engineering Research Centre, Chennai
Dr K. Ramanjaneyulu received his PhD from Indian Institute of Science, Bengaluru. Currently working as Chief Scientist and Head, Advanced Concrete Testing and Evaluation Laboratory at CSIR-SERC, Chennai. His research interests include: Reinforced concrete behaviour, health monitoring of bridges.

 

J. Rajasankar, Structural Engineering Research Centre, Chennai
Dr J. Rajasankar received his PhD from Indian Institute of Technology Madras, Chennai. Currently working as Senior Principal Scientist and Head, Shock and Vibration Group, CSIR-SERC, Chennai. His research interests include : Finite  element analysis, computational structural dynamics, damage mechanics.
Chitra Rajagopal, Structural Engineering Research Centre, Chennai
Ms Chitra Rajagopal Currently working as Scientist-G & Associate Director and Head, Explosive Safety at Centre for Fire Explosive and Environment Safety, DRDO, Delhi.

References

Parameswaran, V.S.; Lakshmanan, N.; Srinivasulu, P.; Krishnamoorthy, T.S.; Balasubramanian, K.; Thandavamoorthy, T.S. & Arumugam, M. Application of laced reinforced concrete construction techniques to blast-resistant structures. Structural Engineering Research Centre, Chennai. SERC Report No. RCC-SR-86-1. October 1986.

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Published
2012-09-14
How to Cite
Anandavalli, N., Lakshmanan, N., Iyer, N., Prakash, A., Ramanjaneyulu, K., Rajasankar, J., & Rajagopal, C. (2012). Behaviour of a Blast Loaded Laced Reinforced Concrete Structure. Defence Science Journal, 62(5), 284-289. https://doi.org/10.14429/dsj.62.820
Section
Armaments & Explosives

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