International Journal of High-Rise Buildings (국제초고층학회논문집)

Council on Tall Building and Urban Habitat Korea (한국초고층도시건축학회)
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Estimating Door Open Time Distributions for Occupants Escaping from Apartments

  • Published : 2021.03.01
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Abstract

The door open time, resulting from occupants evacuating from apartments, is an important parameter when assessing the performance of smoke ventilation systems in high-rise apartment buildings. However, the values recommended in UK design guidance appear to have limited substantiation. Monte Carlo simulations have been carried out considering variabilities in door swing time, flow rate and number of occupants. It has been found that the door open time can be represented by a lognormal distribution with a mean of 6.6, 8.7 and 11.1 s and a standard deviation of 1.7, 3.2 and 4.7 s for one, two and three-bedroom apartments, respectively. For deterministic analyses, it is proposed that the 95th percentile values may be adopted in line with recommended practice for other fire safety design parameters such as fuel load density and soot yield, giving door open times of 10 s to 19 s, depending on the number of bedrooms.

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References

  1. K. Al-Kodmany (2012), 'The logic of vertical density: Tall buildings in the 21st century city', International Journal of High-Rise Buildings, Vol. 1, pp.131-148, doi:10.21022/IJHRB.2012.1.2.131.
  2. BRE (2005), 'Smoke ventilation of common access areas of flats and maisonettes (project report number 213179)', BD 2410.
  3. BSI (2005), 'BS EN 1992-1-2:2004+A1:2019 Eurocode 2. Design of concrete structures. General rules. Structural fire design', BSI, London.
  4. BSI (2015), 'BS 9991:2015 Fire safety in the design, management and use of residential buildings. Code of practice', BSI, London.
  5. BSI (2019a), 'PD 7974-1:2019 Application of fire safety engineering principles to the design of buildings. Initiation and development of fire within the enclosure of origin (Sub-system 1)', BSI, London.
  6. BSI (2019b), 'PD 7974-7:2019 Application of fire safety engineering principles to the design of buildings. Probabilistic risk assessment (sub-system 7)', BSI, London.
  7. BSI (2019c), 'PD 7974-6:2019 Application of fire safety engineering principles to the design of buildings. Human factors. Life safety strategies. Occupant evacuation, behaviour and condition (Sub-system 6)', BSI, London.
  8. K. Frank (2013), 'Fire safety system effectiveness for a risk-informed design tool', PhD Thesis, University of Canterbury.
  9. E. Generalova and V. Generalov (2015), 'Apartments in skyscrapers: innovations and perspectives of their typology development', proceedings of CTBUH 2015, New York, USA, Oct. 2015, pp.355-362.
  10. S. Gwynne and K. Boyce (2016), 'Engineering data', in SFPE Handbook of Fire Protection Engineering, 5th Edition., Springer, pp.2429-2551.
  11. G. Hadjisophocleous and J. Mehaffey (2016), 'Fire scenarios', in SFPE handbook of Fire Protection Engineering, 5th Edition., Springer, pp.1262-1288.
  12. HM Government (2016), 'The Building Regulations 2010, Approved Document M (Access to and use of buildings) Volume 1: Dwellings (2015 edition incorporating 2016 amendments)'.
  13. HM Government (2020), 'The Building Regulations 2010, Approved Document B (Fire Safety) Volume 1 (2019 edition, as amended May 2020)'.
  14. C. Hopkin, M. Spearpoint and D. Hopkin (2019a), 'A review of design values adopted for heat release rate per unit area', Fire Technology, Vol. 55, no. 5, pp.1599-1618, doi: 10.1007/s10694-019-00834-8.
  15. C. Hopkin, M. Spearpoint, D. Hopkin, and Y. Wang (2019b), 'Residential occupant density distributions derived from English Housing Survey data', Fire Safety Journal, vol. 104, pp.147-158, doi:10.1016/j.firesaf.2019.01.010.
  16. C. Hopkin, M. Spearpoint, D. Hopkin and Y. Wang (2019c), 'Design fire characteristics for probabilistic assessments of dwellings in England', Fire Technology, Vol. 56, pp. 1179-1196, doi:10.1007/s10694-019-00925-6.
  17. C. Hopkin, M. Spearpoint and Y. Wang (2019d), 'Internal door closing habits in domestic premises: results of a survey and the potential implications on fire safety', Safety Science, Vol. 120, pp.44-56, doi:10.1016/j.ssci.2019.06.032.
  18. D. Hopkin, T. Lennon, J. El-Rimawi and V. Silberschmidt (2012), 'A numerical study of gypsum plasterboard behaviour under standard and natural fire conditions', Fire and Materials, Vol. 36, No. 2, pp.107-126, doi:10.1002/fam.1092
  19. D. Hopkin, C. Hopkin, M. Spearpoint, B. Ralph, and R. Van Coile (2019), 'Scoping study on the significance of mesh resolution vs. scenario uncertainty in CFD modelling of residential smoke control systems', proceedings of Interflam, Royal Holloway, UK, Jul. 2019.
  20. C. Hopkin and M. Spearpoint (2020), 'Numerical simulations of concealed residential sprinkler head activation time in a standard thermal response room test', Building Services Engineering Research and Technology, doi:10.1177/0143624420953302.
  21. C. Hopkin, M. Spearpoint, D. Hopkin, and Y. Wang (2020), 'Fire safety design of open plan apartments in England', Architectural Engineering and Design Management, Vol. 16, No. 5, pp.391-410, doi:10.1080/17452007.2020.1719812.
  22. R. Lovreglio, M. Spearpoint and M. Girault (2019a), 'The impact of sampling methods on evacuation model convergence and egress time', Reliability Engineering and System Safety, Vol. 185, pp. 24-34, doi:10.1016/j.ress.2018.12.015.
  23. R. Lovreglio, E. Kuligowski, S. Gwynne and K. Boyce (2019b), 'A pre-evacuation data for use in egress simulations', Fire Safety Journal, Vol. 105, pp. 107-128, doi:10.1016/j.firesaf.2018.12.009.
  24. K. McGrattan, S. Hostikka, R. McDermott, J. Floyd and M. Vanella (2019), 'Fire Dynamics Simulator user's guide', National Institute of Standards and Technology, Gaithersburg, MD, NIST SP 1019. doi:10.6028/NIST.SP.1019.
  25. Ministry of Business, Innovation & Employment (2017), 'C/VM2, verification method: framework for fire safety design, for New Zealand Building Code clauses C1-C6 protection from fire', New Zealand Government, Amendment 5.
  26. K. Notarianni and G. Parry (2016), 'Uncertainty', in SFPE Handbook of Fire Protection Engineering, 5th Edition., Springer, pp. 2992-3047.
  27. E. Ronchi, P. Reneke, R. Peacock (2014), 'A method for the analysis of behavioural uncertainty in evacuation modelling', Fire Technology, Vol.50, pp.1545-1571, doi:10.1007/s10694-013-0352-7.
  28. SCA (2015), 'Guidance on smoke control to common escape routes in apartment buildings (flats and maisonettes), revision 2', Federation of Environmental Trade Associations.
  29. SCA (2020), 'Guidance on smoke control to common escape routes in apartment buildings (flats and maisonettes), revision 3', Federation of Environmental Trade Associations.
  30. Scottish Government (2019), 'Building Standards Technical Handbook 2019: Domestic'.
  31. M. Spearpoint and C. Hopkin (2019), 'A study of the time of day and room of fire origin for dwelling fires', Fire Technology, Vol.56, pp.1465-1485, doi:10.1007/s10694-019-00934-5.
  32. R. Van Coile, D. Hopkin, D. Lange, G. Jomaas and L. Bisby (2019), 'The need for hierarchies of acceptance criteria for probabilistic risk assessment in fire engineering', Fire Technology, Vol.5, No.4, pp.1111-1146, doi:10.1007/s10694-018-0746-7.