基于博弈–改进可拓理论对木结构建筑群火灾危险性评价

Fire Hazard Assessment of Timber Structure Building Groups Based on Game Theory and Improved Extension Theory

摘要: 为了科学合理的评价木结构建筑群火灾危险等级，基于WSR理论从人员因素、消防安全管理、建筑群防火性能、消防安全设施和火灾危险源五个方面构建木结构建筑群火灾危险性评价指标体系。应用G1法计算指标的主观权重，应用改进熵权法计算指标的客观权重，引入博弈论的理论思想计算各指标的组合权重，并应用非对称贴进度对可拓理论进行改进，采用改进后的方法对木结构建筑群火灾危险性进行评价。结果表明：应用博弈论对G1法和改进熵权法计算的权重进行拟合的方法，具有一定的科学性。结合非对称贴进度改进可拓理论，能够进一步明确其火灾等级的安全贴进度，使得计算结果更加精确。综合评价得出该木结构建筑群火灾危险等级为III级偏向于II级符合当地实际情况，证明该方法适用于木结构建筑群火灾危险性评价。

Abstract: In order to scientifically and reasonably evaluate the fire hazard level of the wood structure build-ing group, based on the WSR theory, the fire risk evaluation index system of wood structure build-ings is constructed from five aspects: personnel factors, fire safety management, building fire per-formance, fire safety facilities and fire hazard sources. The G1 method was used to calculate the subjective weight of the index, and the improved entropy weight method was used to calculate the objective weight of the index. The combined weight of each index was calculated by introducing the theoretical thought of game theory, and the extension theory was improved by using asymmetric paste schedule, and the improved method was used to evaluate the fire risk of wooden structure buildings. The results show that the method of fitting the weights calculated by the G1 method and the improved entropy weight method by applying game theory is scientific. Combining with the im-provement of the extension theory of the asymmetric post progress, it can further clarify the safety post progress of its fire level and make the calculation result more accurate. The comprehensive evaluation shows that the fire hazard level of the wood structure building group is III, and the devi-ation to level II conforms to the local actual situation, which proves that the method is suitable for the fire risk assessment of wood structure building groups.