Structural Engineering and Mechanics

  • 제32권2호
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  • Pages.321-335
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  • 2009
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Inelastic two-degree-of-freedom model for roof frame under airblast loading

  • Park, Jong Yil (Joint Modeling and Simulation Center, Agency for Defense Development) ;
  • Krauthammer, Theodor (Director of the Center for Infrastructure Protection and Physical Security, Goldsby Chair in Civil Engineering, Professor, Center for Infrastructure Protection and Physical Security(CIPPS), University of Florida)
  • 투고 : 2008.11.16
  • 심사 : 2009.02.16
  • 발행 : 2009.05.30
⟨ 이전 논문 다음 논문 ⟩

초록

When a roof frame is subjected to the airblast loading, the conventional way to analyze the damage of the frame or design the frame is to use single degree of freedom (SDOF) model. Although a roof frame consists of beams and girders, a typical SDOF analysis can be conducted only separately for each component. Thus, the rigid body motion of beams by deflections of supporting girders can not be easily considered. Neglecting the beam-girder interaction in the SDOF analysis may cause serious inaccuracies in the response values in both Pressure-Impulse curve (P-I) and Charge Weight-Standoff Diagrams (CWSD). In this paper, an inelastic two degrees of freedom (TDOF) model is developed, based on force equilibrium equations, to consider beam-girder interaction, and to assess if the modified SDOF analysis can be a reasonable design approach.

키워드

참고문헌

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  5. Krauthammer, T. (2008), Modern Protective Structures, CRC Press
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  7. PDC-TR 06-01 (2006), 'Methodology manual for the single-degree-of-freedom blast effects design spreadsheets', US Army Corps of Engineers
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  10. UFC 4-020-01 (Pending), 'DoD security engineering facilities planning manual', US Department of Defense

피인용 문헌

  1. Modeling and validation of a wall-window retrofit system under blast loading vol.37, 2012, https://doi.org/10.1016/j.engstruct.2011.12.015
  2. Pressure--impulse diagrams for RC and FRC circular plates under blast loads vol.16, pp.7, 2012, https://doi.org/10.1080/19648189.2012.675149
  3. Pressure-impulse diagram with multiple failure modes of one-way reinforced concrete slab under blast loading using SDOF method vol.20, pp.2, 2013, https://doi.org/10.1007/s11771-013-1513-z
  4. The influence of load pulse shape on pressure-impulse diagrams of one-way RC slabs vol.42, pp.3, 2012, https://doi.org/10.12989/sem.2012.42.3.363
  5. Effect of shear zone on dynamic behaviour of rock tunnel constructed in highly weathered granite vol.23, pp.3, 2009, https://doi.org/10.12989/gae.2020.23.3.245
  6. Energy-Absorbing Connection for Heavy-Timber Assemblies Subjected to Blast Loads-Concept Development and Application vol.147, pp.4, 2009, https://doi.org/10.1061/(asce)st.1943-541x.0002975
  7. Dynamic analysis methods for modelling timber assemblies subjected to blast loading vol.233, pp.None, 2009, https://doi.org/10.1016/j.engstruct.2021.111945