瓮丁村典型民居的火灾影响范围分析

Analysis of the range of fire impact on the typical residential buildings in the village of Wengding

为研究翁丁村木草结构杆栏式建筑火灾蔓延的风险性和发生火灾时单一建筑的热辐射影响范围,结合FDS火灾动力学模拟手段分析了典型单体建筑的火灾过程。针对翁丁村木草结构民居建筑群单体建筑间距为3~6 m,分别按3种方法估算该建筑群单体建筑应具有的安全距离。结果表明,由于翁丁村木草结构建筑规模比较小,各种计算方法得到的安全距离均不超过12 m,但由于其建筑火灾发展过程的特殊性,不同的计算方法得到的计算结果还存在差异性。

In order to study the fire spreading hazard of wooden grass bar type structure building and the influence range of thermal radiation of one building during the fire in Wengding village,the fire process of single typical building was simulated by FDS.Against the fact that the distance between the wooden grass bar type structure building in Wengding is 3~6 m,the due safe distance was preliminarily estimated by different methods.Results showed that,as the building scale is small,the safety distance gotten by different methods is no more than 12 m.because of the specific characteristics of building fire developing,different method has different result.