摘要
为探究木质板材火灾危险性综合评价,选用6种常用木质板材(杉木板、松木板、榆木板、密度板、胶合板、刨花板),采用锥形量热仪与火蔓延试验平台测试6种板材的燃烧行为。将测得的燃烧反应特性参数分为燃烧特性、生烟特性、一般烟气毒性与火焰蔓延特性4种指标因素,以构建木质板材火灾危险性综合评价指标体系,并提出一种基于博弈法组合赋权的改进灰色关联法,与火灾增长速率指数评价法进行对比,发现火灾增长速率指数评价法主要反映热释放速率快速增长阶段的热危险性,而改进灰色关联法在评价各指标因素上更全面。结果表明:组合赋权的改进灰色关联法能有效评价各指标因素对木质板材火灾危险性的影响,最终得到6种木质板材火灾危险性由小到大为:榆木板(0.674 8)>松木板(0.663 4)>刨花板(0.655 6)>杉木板(0.650 5)>密度板(0.637 7)>胶合板(0.633 0)。组合赋权的改进灰色关联法在评价材料火灾危险性时可以更科学、更全面地反映整个受火过程中的火灾危险性大小,是一种评价结果可信度高的思路。
In order to investigate the comprehensive evaluation of fire hazard of wood-panels,six commonly-used wood-panels(fir,pine,elm,density,plywood,particle board)were selected,and the combustion behaviors of the six panels were tested by using a cone calorimeter and a fire spreading experimental platform.The measured combustion reaction parameters were divided into four index factors,namely,combustion characteristics,smoke characteristics and general smoke toxicity,and flame spread characteristics,in order to construct a comprehensive evaluation index system for the fire hazard of wood-panels,and an improved grey correlation method based on the combination of the game method and assignment was proposed.And compared with the fire growth rate,it was found that the fire growth rate mainly reflects the thermal hazard in the rapid growth stage,while the improved gray correlation method tends to be more comprehensive in evaluating the factors of each indicator.The results show that the improved gray correlation method can effectively evaluate the influence of each index factor on the fire danger of wood-based panels,and the fire danger of six wood-based panels from the smallest to the largest is as follows:elm wood panel(0.6748)>pine wood panel(0.6634)>particle board(0.6556)>fir wood panel(0.6505)>density board(0.6377)>plywood(0.6330).The improved gray correlation method with combination assignment can be more scientific and comprehensive to reflect the size of fire danger in the whole fire process when evaluating the fire danger of materials,and it is a way for evaluating the results with high credibility.
作者
于志金
宋佳妮
徐澜
李茜
YU Zhijin;SONG Jiani;XU Lan;LI Qian(College of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)
出处
《西安科技大学学报》
CAS
北大核心
2024年第1期34-42,共9页
Journal of Xi’an University of Science and Technology
基金
国家自然科学基金项目(52274227)
陕西省自然科学基础研究计划项目(2022JQ-408)。
关键词
熵权法
CRITIC法
博弈论
灰色关联度
木质板材
燃烧特性
entropy weight method
CRITIC method
game theory
grey correlation degree
wood-panel
combustion characteristics
