Time-dependent variation distribution of fire temperature for concrete hollow thin-walled pier affected by flame fluid

ZHANG Gang; HE Shuan-hai; WANG Cui-juan

Volume 14 Issue 1

Turn off MathJax

Article Contents

Article Navigation > Journal of Traffic and Transportation Engineering > 2014 > 14(1): 26-34

Next Previous

ZHANG Gang, HE Shuan-hai, WANG Cui-juan. Time-dependent variation distribution of fire temperature for concrete hollow thin-walled pier affected by flame fluid[J]. Journal of Traffic and Transportation Engineering, 2014, 14(1): 26-34.

Citation:

ZHANG Gang, HE Shuan-hai, WANG Cui-juan. Time-dependent variation distribution of fire temperature for concrete hollow thin-walled pier affected by flame fluid[J]. Journal of Traffic and Transportation Engineering, 2014, 14(1): 26-34.

Citation:

PDF( 893 KB)

Time-dependent variation distribution of fire temperature for concrete hollow thin-walled pier affected by flame fluid

ZHANG Gang^{1, 2
,},
HE Shuan-hai^{1, 2},
WANG Cui-juan³

1.
School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China
2.
Key Laboratory of Old Bridge Detection and Reinforcement Technique in Traffic Industry, Chang'an University, Xi'an 710064, Shaanxi, China
3.
School of Construction Machinery, Chang'an University, Xi'an 710064, Shaanxi, China

More Information

Author Bio:
ZHANGGang(1980-), male, associate professor, PhD, +86-29-82334870, zhanggang@chd.edu.cn
Received Date: 2013-08-26
Publish Date: 2014-02-25

Abstract

Abstract

For the structure response of the coupled variation of air current in fire field and flame temperature space, considering the effect of air current speed as well as the interaction effect of flame space and structure height, the surrounding fire model in flame fluid field was created. The temperature of flame fluid field was calculated by using time increment iteration method. The comprehensive boundary control equation and the relation between convection heat exchange and air current speed were studied. The temperature distribution statuses of facing-fluid side and lateral-fluid side in fluid field were analyzed, the surrounding fire scene of concrete hollow thinwalled pier was studied, the coupled model of flame fluid field was proposed, the time-dependent variation distribution law of fire temperature for concrete hollow thin-walled pier affected by flame fluid was revealed. Analysis result indicates that when fire time is 120 min and air current speed is 3 m·s^-1, the temperature near fire source is about 100℃ higher than that at other air current speeds, the influence of air current speed on fire source temperature is nonlinear. Thedistribution depth of high temperature layer (higher than 500℃) on facing-fire side is only 7 cm, the outer facing-fire side concrete of hollow thin-walled pier strips easily under vertical load. Temperature on facing-fluid side is much higher than temperature on lateral-fluid side, temperature on far side of fire does not change. The distribution domains of different temperatures can be changed with the variation of air current speed in steady low fluid field, and the high temperature area on facing-fire side can be enlarged.
- bridge engineering,
- concrete hollow thin-walled pier,
- flame fluid,
- time-dependent variation distribution of fire temperature

FullText(HTML)

References(28)

References

[1]	GARLOCK M, PAYA-ZAFORTEZA I, KODUR V, et al. Fire hazard in bridges: review, assessment and repair strategies[J]. Engineering Structures, 2012, 35 (1): 89-98.
[2]	KODUR V, DWAIKAT M. A numerical model for predicting the fire resistance of reinforced concrete beams[J]. Cement and Concrete Composites, 2008, 30 (5): 431-443. doi: 10.1016/j.cemconcomp.2007.08.012
[3]	NUBISSIE A, NGAMIE N A, WOAFO P. Dynamical behavior of a wooden beam under mechanical loading and fire[J]. Materials and Design, 2011, 32 (3): 1331-1336. doi: 10.1016/j.matdes.2010.09.020
[4]	SHAHID I, HARICHANDRAN R S. Capacity reduction and fire load factors for LRFD of steel columns exposed to fire[J]. Fire Safety Journal, 2011, 46 (5): 234-242. doi: 10.1016/j.firesaf.2011.02.005
[5]	CAPUA D D, MARI A R. Nonlinear analysis of reinforced concrete cross-sections exposed to fire[J]. Fire Safety Journal, 2007, 42 (2): 139-149. doi: 10.1016/j.firesaf.2006.08.009
[6]	WU Ke, HUANG Zhi-yi, XU Xing. Research on thermal effect of asphalt pavement combustion in long tunnel fires[J]. China Journal of Highway and Transport, 2009, 22 (2): 77-81. (in Chinese). doi: 10.3321/j.issn:1001-7372.2009.02.014
[7]	OUYANG Zhi-wei. Research on fire resistance performance of full-scale prestressed concrete beams and slabs[D]. Harbin: Harbin Institute of Technology, 2009. (in Chinese).
[8]	JIANG Shou-chao, LI Guo-qiang, ZHOU Hong-yu, et al. Experimental study of behavior of steel-concrete composite slabs subjected to fire[J]. Journal of Building Structures, 2004, 25 (3): 45-51. (in Chinese). doi: 10.3321/j.issn:1000-6869.2004.03.007
[9]	LU Zhou-dao, YU Ke-quan. Determination of residual fracture toughness and softening traction-separation law of post-fire concrete[J]. Journal of Tongji University: Natural Science, 2012, 40 (9): 1306-1311. (in Chinese). doi: 10.3969/j.issn.0253-374x.2012.09.005
[10]	ZHOU Yong-chao, HU Sheng-neng, SONG Lei, et al. Effect analysis of steel-concrete composite beam caused by sudden change of temperature[J]. Journal of Traffic and Transportation Engineering, 2013, 13 (1): 20-26. (in Chinese). doi: 10.3969/j.issn.1671-1637.2013.01.004
[11]	ZHONG Zhan-rong, ZHOU Jian-jun, ZOU Yang-hui, et al. Study on the model of wildland fire spread[J]. Fire Safety Science, 2001, 10 (2): 83-87. (in Chinese). doi: 10.3969/j.issn.1004-5309.2001.02.006
[12]	WANG Zhi-chun, SONG Li-li, HE Qiu-sheng, et al. Model analysis of curve fitting of wind speed and its height[J]. Journal of Tropical Meteorology, 2007, 23 (6): 90-92. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-RDQX200706025.htm
[13]	WEI Dong, LIANG Qiang. Theoretical study on fire radiation attenuation with water curtains[J]. China Safety Science Journal, 2008, 18 (10): 75-81. (in Chinese). doi: 10.3969/j.issn.1003-3033.2008.10.013
[14]	SHI Long, ZHANG Rui-fang, XIE Qi-yuan, et al. Effect analysis of fire location on fire growth in large space[J]. China Engineering Science, 2008, 10 (11): 37-42. (in Chinese). doi: 10.3969/j.issn.1009-1742.2008.11.007
[15]	LIU Wen-yan, HUANG Ding-ye, HUA Yi-jie. Probe into test method of heat convection coefficient of concrete[J]. Sichuan Building Science, 2004, 30 (4): 87-89. (in Chinese). doi: 10.3969/j.issn.1008-1933.2004.04.033
[16]	XU Zhi-sheng, WU Zhen-ying, HE Jia. Study on pool fire model applying to the safety assessment[J]. Journal of Catastrophology, 2007, 22 (4): 25-28. (in Chinese). doi: 10.3969/j.issn.1000-811X.2007.04.006
[17]	ZHANG Gang, HE Shuan-hai, SONG Yi-fan, et al. Safety evaluation for reinforcement concrete girders exposed to fire[J]. Journal of Safety and Environment, 2008, 7 (3): 153-157. (in Chinese). doi: 10.3969/j.issn.1009-6094.2008.03.037
[18]	ZHANG Gang, HE Shuan-hai, SONG Yi-fan, et al. Nonlinear computation method for simply supported beam of reinforcement concrete exposed to fire[J]. Journal of Xi'an University of Architecture and Technology: Natural Science Edition, 2008, 40 (3): 317-322. (in Chinese). doi: 10.3969/j.issn.1006-7930.2008.03.005
[19]	ZHANG Gang, HE Shuan-hai, GUO Qi, et al. High temperature deformation of reinforcement concrete beam bridges exposed to fire[J]. Journal of Chang'an University: Natural Science Edition, 2009, 29 (1): 54-58. (in Chinese). doi: 10.3321/j.issn:1671-8879.2009.01.012
[20]	ZHANG Gang, HE Shuan-hai, WANG Cui-juan. Deformation analysis of pre-stressed concrete multi-cell thin-wall variable width box girders bridge exposed to co-action fire and load[J]. Journal of Chang'an University: Natural Science Edition, 2011, 31 (2): 42-46. (in Chinese). doi: 10.3969/j.issn.1671-8879.2011.02.010
[21]	ZHANG Gang. Deformation analysis of concrete thin-wall box girders for width and difference exposed to fire[J]. Journal of PLA University of Science and Technology: Natural Science Edition, 2011, 12 (2): 165-171. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JFJL201102012.htm
[22]	ZHANG Gang, WANG Cui-juan, HE Shuan-hai, et al. Fireresistant performance of multi-beam concrete T-shape girder bridge exposed to deck fire[J]. Journal of Chang'an University: Natural Science Edition, 2013, 33 (5): 52-56. (in Chinese). doi: 10.3969/j.issn.1671-8879.2013.05.010
[23]	LUO Sang, SU Kai, QIAN Zhen-dong, et al. Research on key time and temperature nodes of epoxy asphalt concrete pavement on minpu bridge[J]. Road Machinery and Construction Mechanization, 2010, 27 (8): 66-68. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZLJX201008033.htm
[24]	ZHENG Wen-zhong, YAN Kai, WANG Ying. Progress of research on fire resistance of prestressed concrete structures[J]. Journal of Building Structures, 2011, 32 (12): 52-61. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JZJB201112007.htm
[25]	ZHANG Gang, HE Shuan-hai, SONG Yi-fan. Updating coupling method of hydration heat temperature damage for concrete box girder[J]. Journal of Traffic and Transportation Engineering, 2008, 8 (1): 54-60. (in Chinese). http://transport.chd.edu.cn/article/id/200801012
[26]	LI Guo-qiang, WU Bo, JIANG Shou-chao. State-of-the-art and suggestions of research on fire-resistance of structures[J]. Progress in Steel Building Structures, 2010, 12 (5): 13-18. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JZJZ201005004.htm
[27]	XIONG Yan, QU Wen-jun, ZHANG Xiang. Analysis of conductivity mechanism of realkalization repair on fire damaged concrete[J]. Journal of Architecture and Civil Engineering, 2013, 30 (1): 55-59. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XBJG201301010.htm
[28]	ZHANG Jian-rong, LIU Zhao-qiu. A study on the convective heat transfer coefficient of concrete in wind tunnel experiment[J]. China Engineering Journal, 2006, 39 (9): 39-43. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TMGC200609005.htm