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A Risk-Based Approach to the Performance-Based Fire Safety Design of a Building in Regard to Preventing Building-to-Building Fire Spread

  • Keisuke HimotoEmail author
Conference paper

Abstract

Building Standard Law (BSL) of Japan requires a building to maintain certain fire safety performance on preventing building-to-building fire spread in urban area. The level of requirement on a building changes with the site location, total floor area, and number of floors of the building, though in a prescriptive manner. In this study, a prototype of risk assessment method is developed for the performance-based fire safety design of a building in regard to building-to-building fire spread prevention. The fire spread risk of a building is evaluated by an event tree analysis in which occurrence probability of fire spread is considered as the probability of successive occurrence of comprising probabilistic events. The probability of each event is represented as a function of fire-resistive time of building members and fire duration time. For the consideration to maintaining continuity from the existing building regulation to an alternative building regulation, equivalency of the requirement level of the two building regulations is validated by comparing the fire spread risk of a building that can be built under each regulation. A case study was performed with a building located in the fire protection zone (FPZ). The result showed that there are several combinations of design parameters such as the fire-resistive times of exterior wall and opening that satisfy equivalent level of the requirement in terms of the fire spread risk in addition to the ones prescribed in the existing regulation.

Keywords

Building-to-building fire spread Performance-based fire safety design method Risk-based approach 

Nomenclature

A

Floor area (m2)

M

Number of fire compartments

N

Number of adjacent buildings

p

Occurrence probability of event

R

Fire spread risk

s

Setback from the site boundary

tf

Fire duration time of the target building

tR

Fire-resistive time

Greek symbols

τ

Fire duration time of the building adjacent to the target building

Superscripts

*

Equivalent without the setback effect

**

Equivalent with the setback effect

Subscripts

fl

Floor

0

Reference

Notes

Acknowledgements

The author appreciates the committee members of the integrated technology development project of the Ministry of Land, Infrastructure, Transport and Tourism for their valuable comments on the proposed method.

References

  1. 1.
    Magnusson, S. E., Frantzich, H., & Harada, K. (1996). Fire safety design based on calculations: Uncertainty analysis and safety verification. Fire Safety Journal, 305–334.Google Scholar
  2. 2.
    Tanaka, T. (2008). Risk-based selection of design fires to ensure an acceptable level of evacuation safety. Fire Safety Science—Proceedings of the 9th International Symposium, International Association for Fire Safety Science (pp. 49–62).CrossRefGoogle Scholar
  3. 3.
    Tanaka, T. (2011). Integration of fire risk concept into performance-based evacuation safety design of buildings. Fire Safety Science—Proceedings of the 10th International Symposium, International Association for Fire Safety Science (pp. 3–22).CrossRefGoogle Scholar
  4. 4.
    Ikehata, Y., Yamaguchi, J., Nii, D., & Tanaka, T. (2014). Required travel distance and exit width for rooms determined by risk-based evacuation safety design method. Fire Safety Science—Proceedings of the 11th International Symposium (pp. 49–62). International Association for Fire Safety Science.Google Scholar
  5. 5.
    Kong, D., Lu, S., & Ping, P. (2017). A risk-based method of deriving design fires for evacuation safety of buildings. Fire Technology, 53, 771–791.CrossRefGoogle Scholar
  6. 6.
    Cousins, J., Heron, D., Mazzoni, S., Thomas, G., & Lloydd, D. (2002). Estimating risks form fire following earthquake. Institute of Geological & Nuclear Sciences Report.Google Scholar
  7. 7.
    Himoto, K., Akimoto, Y., Hokugo, A., & Tanaka, T. (2008). Risk and behavior of fire spread in a densely-built urban area. Fire Safety Science—Proceedings of the 9th International Symposium (pp. 267–278). International Association for Fire Safety Science.Google Scholar
  8. 8.
    Culver, C. G. (1978). Characteristics of fire loads in office buildings. Fire Technology, 14(1), 51–60.CrossRefGoogle Scholar
  9. 9.
    Lord, F. M., & Novick, M. R. (1968). Statistical theories of mental test scores. Massachusettes, U.S.: Addison-Wesley Educational Publishers Inc.zbMATHGoogle Scholar
  10. 10.
    Harada, K., Kogure, R., Matsuyama, K., & Wakamatsu, T. (2000). Equivalent fire duration based on time-heat flux area. Fire Safety Science—Proceedings of the 4th International Symposium (pp. 513–524). International Association for Fire Safety Science.Google Scholar
  11. 11.
    McCaffrey, B. J., Quintiere, J. G., & Harkleroad, M. F. (1981). Estimating room temperatures and the likelihood of flashover using fire test data correlations. Fire Technology, 17(2), 98–119.CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.National Institute for Land and Infrastructure ManagementTsukubaJapan

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