3-D fire-spreading model for building clusters with large ground elevation variations

XU Zhen; XUE Qiaorui; LU Xinzheng; SUN Xuan

doi:10.16511/j.cnki.qhdxxb.2019.26.041

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Journal of Tsinghua University(Science and Technology) ›› 2020, Vol. 60 ›› Issue (1) : 95-100. DOI: 10.16511/j.cnki.qhdxxb.2019.26.041

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3-D fire-spreading model for building clusters with large ground elevation variations

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Abstract

Existing fire-spreading models for building clusters mostly consider 2-D horizontal spreading without the influence of ground elevation, so they are not accurate for building clusters with large elevation changes. A 3-D fire-spreading model was developed here for building clusters with different ground elevations. Existing 2-D models were extended to 3-D models for the thermal radiation and plumes in a 3D fire-spreading model for building clusters. The 3-D fire spreading model was then verified against computational fluid dynamics (CFD) models. The model was then used to model the spreading of fires in Dukezong, Yunnan and Hot Spring Village, Guizhou as examples that have large elevation changes with the 3-D spreading results being more accurate than 2-D spreading results. Thus, this work provides a more accurate simulation method for fire spreading for building clusters in mountainous or hilly areas where the elevations change significantly.

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building clusters / fire-spreading model / elevation differences / three dimensional

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XU Zhen, XUE Qiaorui, LU Xinzheng, SUN Xuan. 3-D fire-spreading model for building clusters with large ground elevation variations[J]. Journal of Tsinghua University(Science and Technology). 2020, 60(1): 95-100 https://doi.org/10.16511/j.cnki.qhdxxb.2019.26.041

References

[1] 张家忠, 周宝坤. 古城镇消防安全问题及对策[J]. 火灾科学, 2014(3):57-61. ZHANG J Z, ZHOU B K. Problems and countermeasures of fire safety in ancient towns[J]. Fire Science, 2014(3):57-61. (in Chinese)
[2] 新浪网. 贵州苗寨"火烧连营"60栋房屋化为废墟[EB/OL]. (2016-02-21)[2019-03-27]. http://news.sina.com.cn/c/nd/2016-02-21/doc-ifxprucu3060737.shtml. SINA Corporation. A serious fire destroyed 60 buildings in Miao Village, Guizhou Province[EB/OL]. (2016-02-21)[2019-03-27]. http://news.sina.com.cn/c/nd/2016-02-21/doc-ifxprucu3060737.shtml. (in Chinese)
[3] HIMOTO K, TNANKA T. A preliminary model for urban fire spread-building fire behavior under the influence of external heat and wind[C]//Fifteenth Meeting of the UJNR Panel on Fire Research and Safety. Boulder, USA:National Institute of Standards and Technology, 2000:309-319.
[4] Federal Emergency Management Agency. HAZUS99 user and technical manuals[M]. Washington, D. C.:National Institute of Building Science, 1999.
[5] 钟江荣, 张令心, 赵振东, 等. 基于GIS的城市地震建筑物次生火灾蔓延模型[J]. 自然灾害学报, 2011, 20(4):16-21. ZHONG J R, ZHANG L X, ZHAO Z D, et al. GIS-based spread model of urban seismic secondary fire of buildings[J]. Journal of Natural Disasters, 2011, 20(4):16-21. (in Chinese)
[6] HIMOTO K, TANAKA T. Development and validation of a physics-based urban fire spread model[J]. Fire Safety Journal, 2008, 43(7):477-494.
[7] CHENG L, LI S, MA L, et al. Fire spread simulation using GIS:Aiming at urban natural gas pipeline[J]. Safety Science, 2015, 75:23-35.
[8] NISHINO T, TANAKA T, HOKUGO A. An evaluation method for the urban post-earthquake fire risk considering multiple scenarios of fire spread and evacuation[J]. Fire Safety Journal, 2012, 54:167-180.
[9] LI S Z, DAVIDSON R. Application of an urban fire simulation model[J]. Earthquake Spectra, 2013, 29(4):1369-1389.
[10] SHAHAM Y, BENENSON I. Modeling fire spread in cities with non-flammable construction[J]. International Journal of Disaster Risk Reduction, 2018, 31:1337-1353.
[11] CATON S E, HAKES R S P, GORHAM D J, et al. Review of pathways for building fire spread in the wildland urban interface part I:Exposure conditions[J]. Fire Technology, 2017, 53(2):429-473.
[12] LI D P, COVA T J, DENNISON P E. Setting wildfire evacuation triggers by coupling fire and traffic simulation models:A spatiotemporal GIS approach[J]. Fire Technology, 2019, 55(2):617-642.
[13] LU X Z, ZENG X, XU Z, et al. Physics-based simulation and high-fidelity visualization of fire following earthquake considering building seismic damage[J]. Journal of Earthquake Engineering, 2017, 23(7):1173-1193.
[14] 赵思键, 熊利亚, 任爱珠, 等. 基于GIS的城市特大火灾蔓延模拟[J]. 火灾科学, 2006, 15(3):128-137. ZHAO S J, XIONF L Y, REN A Z, et al. The GIS-based simulation of urban mass fire spread[J]. Fire Safety Science, 2006, 15(3):128-137. (in Chinese)
[15] REN A Z, XIE X Y. The simulation of post-earthquake fire-prone area based on GIS[J]. Journal of Fire Sciences, 2004, 22(5):421-439.
[16] ZHAO S J. GISFFE-An integrated software system for the dynamic simulation of fires following an earthquake based on GIS[J]. Fire Safety Journal, 2010, 45(2):83-97.
[17] 曾翔, 杨哲飚, 许镇, 等. 村镇建筑群火灾蔓延模拟与案例[J]. 清华大学学报(自然科学版), 2017, 57(12):1331-1337. ZENG X, YANG Z B, XU Z, et al. Fire spread simulations of building groups in rural areas[J]. Journal of Tsinghua University (Science and Technology), 2017, 57(12):1331-1337. (in Chinese)
[18] 郭福良. 木结构吊脚楼建筑群火灾蔓延特性研究[D]. 北京:中国矿业大学, 2013. GUO F L. Study on characteristics of fire spread of houses on stilts[D]. Beijing:China University of Mining and Technology, 2013. (in Chinese)
[19] PITTS W M. Wind effects on fires[J]. Progress in Energy and Combustion Science, 1991, 17(2):83-134.
[20] 范维澄, 王清安, 姜冯辉, 等. 火灾学简明教程[M]. 合肥:中国科学技术大学出版社, 1995. FAN W C, WANG Q A, JIANG F H, et al. Concise textbook of fire science[M]. Heifei:China University of Science and Technology Press, 1995. (in Chinese)
[21] XU Z, ZHANG Z C, LU X Z, et al. Post-earthquake fire simulation considering overall seismic damage of sprinkler systems based on BIM and FEMA P-58[J]. Automation in Construction, 2018, 90:9-22.