关键词: 高层建筑, 火灾, 安全评价, Shapley, 证据理论

Abstract:

In view of the difficulty of choosing a suitable method to determine the fire safety level caused by the uncertainty, ambiguity and nonlinear relationship of the fire safety evaluation index of high-rise buildings, a high-rise building fire safety evaluation method based on Shapley- D- S is proposed. First, build an evaluation index system from six dimensions of fire protection capability, electrical equipment, automatic alarm system, automatic fire extinguishing system, evacuation capability, and management capability; then introduce Shapley value to solve the non- linear relationship between indexes through nonadditive measures, and obtain index weights; the evidence theory is used to eliminate the uncertainty and ambiguity of the evaluation process, and the fire safety level of high-rise buildings is obtained through the likelihood function and the evidence fusion algorithm. The evaluation method was applied to the fire safety evaluation of a block of high- rise buildings in Zhengzhou, and the results showed that the fire level of the community was within a relatively safe range. Three important indicators of electrical equipment, automatic fire extinguishing systems and evacuation capability should be paid attention to. 

Key words: high-rise building, fire, safety evaluation, Shapley, evidence theory