Structural Engineering and Mechanics

  • 제42권3호
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  • Pages.363-381
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  • 2012
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The influence of load pulse shape on pressure-impulse diagrams of one-way RC slabs

  • Wang, Wei (Institute of Technique Physics, College of Science, National University of Defense Technology) ;
  • Zhang, Duo (Institute of Technique Physics, College of Science, National University of Defense Technology) ;
  • Lu, Fangyun (Institute of Technique Physics, College of Science, National University of Defense Technology)
  • 투고 : 2011.02.16
  • 심사 : 2012.04.02
  • 발행 : 2012.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

This study is aimed at providing an efficient analytical model to obtain pressure- impulse diagram of one-way reinforced concrete slabs subjected to different shapes of air blast loading using single degree of freedom method (SDOF). A tri-linear elastic perfectly plastic SDOF model has been used to obtain the pressure-impulse diagram to correlate the blast pressure and the corresponding concrete flexural damage. In order to capture the response history for the slab, a new approximately SDOF method based on the conventional SDOF method is proposed and validated using published test data. The influences of pulse loading shape on the pressure-impulse diagram are studied. Based on the results, a pressure-impulse diagram generation method using SDOF and an analytical equation for the pressure-impulse diagram is proposed to different damage levels and different blast loading shapes.

키워드

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피인용 문헌

  1. Analysis of a bridge collapsed by an accidental blast loads vol.36, 2014, https://doi.org/10.1016/j.engfailanal.2013.10.022
  2. Single-Degree-of-Freedom Approach to Incorporate Axial Load Effects on Pressure Impulse Curves for Steel Columns vol.141, pp.1, 2015, https://doi.org/10.1061/(ASCE)EM.1943-7889.0000818
  3. Experimental study and numerical simulation of the damage mode of a square reinforced concrete slab under close-in explosion vol.27, 2013, https://doi.org/10.1016/j.engfailanal.2012.07.010
  4. A new SDOF method of one-way reinforced concrete slab under non-uniform blast loading vol.46, pp.5, 2013, https://doi.org/10.12989/sem.2013.46.5.595
  5. Application of Normalized Pressure Impulse Diagrams for Vented and Unvented Confined Blasts vol.140, pp.3, 2014, https://doi.org/10.1061/(ASCE)EM.1943-7889.0000680
  6. Pressure−impulse diagram method - a fundamental review vol.172, pp.2, 2019, https://doi.org/10.1680/jencm.17.00017
  7. Experimental and numerical investigation of reinforced concrete slabs under blast loading vol.206, pp.None, 2012, https://doi.org/10.1016/j.engstruct.2019.110125