Abstract
In this paper, the correlation between fire fighting time and fire loss (burned area of urban building) based on fire statistical data in Jiangxi Province (China) from 2000 to 2010 was studied. The results showed the probability distribution of fire fighting time met lognormal distribution. In the probability density function, the expectation of the distribution represents the average level of fire fighting time. We found the average fighting time of warehouse and workshop fires were higher than the average level of whole building fires. In addition, the probability distribution of the burned area in each fire fighting time interval also followed power function, which was valid in the case of the fire fighting time within 4 hours. Furthermore, the absolute value of the exponent of the function is positively correlated with the small-scale fires and negatively with the large-scale fires. The value decreased with the increase of the fire fighting time, indicating that the fire control ability became poor with longer fire fighting time. Also, the fire control ability in residential waned fastest as the fighting time increased, and the ability in warehouse waned slowest. en fire fighting time and fire loss in urban building based on statistical data
Highlights
As the economics develops fast, the number of urban buildings increases as well
Studying the total statistical data in Jiangxi Province, we found that the number of fires with burned area less than 2,000 m2 accounts for 99.8%
The expectation of lognormal distribution represented the average level of fire fighting time
Summary
As the economics develops fast, the number of urban buildings increases as well This inevitably caused more fires than in the past, which brought severe casualty and property loss Sardqvist and Holmstedt (2000) studied the statistical data of 307 fires in non-residential buildings of London between 1994 and 1997. They found that fire fighting time increased almost linearly with burned area. Based on the previous study, we inferred that there should be similar relationship between fire fighting time and burned area. The correlation between burned area and fire fighting time was investigated by using the fire statistical data in Jiangxi Province of China from 2000 to 2010. The effects of different building types on the correlation are further analyzed
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