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Weidlinger Associates Report DES07021_090225_V2.0

Characterising the response of reinforced concrete cladding panels to vapour cloud explosions

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Weidlinger Associates-DES07021_090225_V2.0 - Characterising the response of reinforced concrete cladding panels to vapour cloud explosions

SUMMARY

This report describes a study examining the response of typical reinforced concrete facade cladding panel subjected to blast loads of a form consistent with vapour clour explosions.

 

TABLE OF CONTENTS 

  1. Introduction & Background
  2. Scope
  3. The structural component to be assessed: precast RC cladding pane
  4. Important assumptions
    1. Input data
    2. List of assumptions
  5. Initial strength assessment: hand calculation's
    1. Hand calculation
  6. Strength assessment: finite element analysis
    1. Software - NL FLEX
    2. Preliminary analysis to confirm failure mode and validity of assumptions
    3. Pseudo-static analysis to calculate pressure-deflection curves
  7. Single-degree-of-freedom (SDOF) model development
    1. Background
    2. SDOP models for the RC cladding panels
  8. Applied loads
    1. Background
    2. Vapour or gas cloud explosion (Assumed Blast Load A)
    3. Idealised high explosive blast (Assumed Blast Load B)
    4. Assumed Blast Load
    5. Assumed Blast Load
    6. General comments about the choice of blast loads
  9. Generating pressure-impulse diagrams and ISO-damage curves
    1. Methodology
    2. Results
  10. Discussion and interpretation of results
    1. Comparison of results for onset of damage to strong panel and failure of weak panel
  11. Detailed finite element analyses of selected loadcases
    1. Selection of loadcases
    2. Results: DLC_1 and DLC_2
    3. Results: DLC_3 and DLC_ 4
    4. Results: DLC_5, DLC_6 and DLC_7
  12. Sensitivity to material properties
  13. Conclusions
  14. References
    1. General references
    2. FLEX related supporting references
  15. Figures
  16. ANNEX A - Hand calculations to predict the cladding panel strength
Publisher: Weidlinger Associates
Published in: 2009
Keywords:
n/a

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