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Parametric study of blast loads on structures

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Abstract

The detrimental effects of blast loads can lead to severe damage in buildings, causing the collapse of structural components. This study focuses on a parametric analysis of blast loads on a Reinforced Concrete (RC) structure in SAP2000 for analysis. The research aims to assess how blast pressure, base reaction, and deformation vary with changes in explosive mass and standoff distances. To determine blast reactions, non-linear time history analysis is conducted through 16 different cases, involving varying distances and explosive masses. The findings reveal that an increase in explosive mass and a decrease in standoff distance result in elevated blast pressure, rendering the structure more susceptible to performance deterioration.

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No datasets were generated or analysed during the current study.

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Acknowledgements

The author is grateful to the NIT, Raipur Management for their support in completing this research. Also, thanks to those directly or indirectly involved and helped in this study.

Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Department of Structural Engineering, University Teaching Department, Chhattisgarh Swami Vivekanand Technical University, Bhilai, India

    R. B. Malathy

  2. Department of Civil Engineering, National Institute of Technology, Raipur, India

    Govardhan Bhatt & Sagar Chowdhury

Authors
  1. R. B. Malathy
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  2. Govardhan Bhatt
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  3. Sagar Chowdhury
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Contributions

Dr. R. B. Malathy: Conceptualization, Methodology, Validation, Formal analysis, Writing—original draft. Dr. Govardhan Bhatt: Review & editing, supervision. Sagar Chowdhury: Investigation, Resources and Data curation.

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Correspondence to R. B. Malathy.

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Appendix: Solved problem from Sect. 2.2.7

Appendix: Solved problem from Sect. 2.2.7

Example statement: Blast parameters due to the detonation of a 0.1 tonne explosive are evaluated on an above ground rectangular structure, 3 m high, 10 m wide and 8 m long, situated at 30 m from ground zero (Fig. A.1)

Fig. A.1
figure 31

Diagrammatic representation of blast load on a closed structure

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The adjoining table shows the calculation of blast pressure on the faces of a structure as per IS Code recommendations (Table A.1):

Table A.1. Blast load example validation in MS Excel
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Malathy, R.B., Bhatt, G. & Chowdhury, S. Parametric study of blast loads on structures. Asian J Civ Eng (2024). https://doi.org/10.1007/s42107-024-01055-3

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