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Study of Dynamic Response of Wall Panel Subjected to Blast Load

6 pagesPublished: July 22, 2017

Abstract

Now a days due to increase in the terrorist activities, it becomes necessary to study the response of building when subjected to blast loading. The front wall of the building has direct effect of blast load. In the present study typical reinforced concrete wall panel was consider for dynamic analysis under blast load scenario. The dynamic analysis was carried out using Single Degree of Freedom Blast Effects Design Spreadsheets (SBEDS). The parametric study was carried out to study the effect of compressive strength of concrete, percentage reinforcement, thickness of wall and unsupported length of wall on response of building under blast load scenario. The results were presented in form of displacement time history and pressure impulse diagrams. The results indicate that the displacement of RC wall panel decrease as the increase in the thickness of wall panel, grade of concrete and percentage of reinforcement, but with the increase in unsupported length of RC wall panel, the displacement increases. The mode of failure of RC wall panel under blast load scenario was predicted using pressure impulse diagram. It was observed that as the increase in unsupported length of shear wall, the shear wall was prone to fail in flexural failure mode in impulsive as well as quasi-static region. The results also indicate that as the increase in thickness of wall, percentage reinforcement and compressive strength of concrete, the shear wall was prone to fail in direct shear mode in impulsive region and flexural mode in quasi-static region.

Keyphrases: Blast load, displacement time history, pressure-impulse diagram, unsupported length

In: C. D. Modhera, G. J. Joshi, D.P Soni, Indrajit N. Patel, A. K. Verma, L. B. Zala, S. D. Dhiman, D. R. Bhatt, Jagdish M. Rathod, Bhargav C. Goradiya, Mehfuza S. Holia and Dharita K. Patel (editors). ICRISET2017. International Conference on Research and Innovations in Science, Engineering and Technology. Selected Papers in Civil Engineering, vol 1, pages 51--56

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BibTeX entry
@inproceedings{ICRISET2017:Study_of_Dynamic_Response,
  author    = {Palak Shukla and Atul Desai and Chetankumar Modhera},
  title     = {Study of Dynamic Response of Wall Panel Subjected to Blast Load},
  booktitle = {ICRISET2017. International Conference on Research and Innovations in  Science, Engineering and Technology. Selected Papers in Civil Engineering},
  editor    = {C. D. Modhera and G. J. Joshi and D.P Soni and Indrajit N. Patel and A. K. Verma and L. B. Zala and S. D. Dhiman and D. R. Bhatt and Jagdish M. Rathod and Bhargav C. Goradiya and Mehfuza S. Holia and Dharita K. Patel},
  series    = {Kalpa Publications in Civil Engineering},
  volume    = {1},
  pages     = {51--56},
  year      = {2017},
  publisher = {EasyChair},
  bibsource = {EasyChair, http://www.easychair.org},
  issn      = {2515-1789},
  url       = {https://easychair.org/publications/paper/jdw},
  doi       = {10.29007/lcct}}
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