某历史街区建筑火灾持续时间计算

The calculating of building fire duration on a historic district

建筑火灾持续时间与建筑的火灾荷载、通风条件有关,是评价建筑物火灾损失和整体安全性的重要参数。结合昆明某历史街区古建筑群,对建筑物的火灾荷载、通风条件进行了统计分析,在此基础上计算了建筑火灾持续时间的分布规律,进一步结合街区内建筑的耐火特性,分析了极端情况下火灾引起街区古建筑倒塌的概率。

The building＇s fire duration is related to the fire load and the ventilation conditions of the building. It is an important parameter for evaluating the loss and the overall safety of the building in the fire. This paper analyzes the fire load and the ventilation conditions of the certain ancient buildings in a historic district in Kunming, and works out the distribution of the fire duration of the buildings. As well, based on the refractory quality of the buildings in the block, the paper discusses the collapse probability of the ancient buildings, which caused by the fire in the extreme conditions.