| 摘要: |
| 为比较不同树种抗火性能力强弱, 研究通过锥形量热仪测定北京地区 6 种常见乔、 灌木树种
(杨树 Populus przewalskii、 油松 Pinus tabulaeformis、 侧柏 Platycladus orientalis、 国槐 Styphnolobium japonicum、 沙地柏 Juniperus sabina、 紫丁香 Syringa oblata) 在冬春防火季 (3 月) 的燃烧性, 利用 Excel
2007、 SPSS 18. 0 和 Origin 2018 等软件, 结合熵权法对影响树种燃烧性的理化性质指标进行分析, 并对各
树种燃烧性进行综合评价。 结果表明, (1) 树种燃烧相关性由强到弱的指标依次为生烟速率、 CO2 生成
速率、 质量损失速率、 热释放速率、 有效燃烧热、 O2 消耗速率、 CO 生成速率; (2) 与燃烧特性强相关
的因素有生烟速率、 CO2 生成速率、 质量损失速率, 在树种选择时优先考虑这 3 个影响因素; (3) 北京
地区 6 种常见乔、 灌木树种的燃烧性由强到弱依次为沙地柏、 油松、 杨树、 国槐、 侧柏、 紫丁香。 在防火
树种筛选中可优先选择紫丁香、 侧柏, 燃烧性较强的树种为沙地柏和油松。 |
| 关键词: 熵权法 锥形量热 燃烧性 防火树种 |
| DOI： |
| 分类号: |
| 基金项目:中国消防救援学院科研项目 (XFKYB202413)。 |
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| Combustibility of Six Tree and Shrubs Species in Beijing Based on Cone Calorimetry Analysis |
|
duqiuyang, bai ye, cheng xin
|
|
China Fire And Rescue Institute
|
| Abstract: |
| To evaluate the fire resistance of different tree species, the flammability of six common tree and
shrub species ( Populus przewalskii, Pinus tabulaeformis, Platycladus orientalis, Styphnolobium japonicum,
Juniperus sabina, and Syringa oblata) during the winter-spring fire-season (March) in Beijing was determined
by cone calorimeter. Using Excel 2007, SPSS 18. 0, Origin 2018 and other software, combined with the entropy weight method, the physical and chemical properties affecting the flammability of tree species were analyzed, and the flammability of each tree species was comprehensively evaluated. The results showed that: (1)
The indexes of tree species combustion correlation from strong to weak were smoke production rate, CO2 production rate, mass loss rate, heat release rate, effective heat of combustion, O2
consumption rate, and CO
production rate. (2) Smoke production rate, CO2 production rate, and mass loss rate were strongly related to
the combustion characteristics, and these three factors should be given priority in tree species selection. (3)
The flammability of six common tree and shrub species in Beijing from strong to weak was J. sabina, P. tabulaeformis, P. przewalskii, S. japonicum, P. orientalis, and S. oblata. In the screening of fire-resistant
tree species, S. oblata and P. orientalis can be preferentially selected, and the tree species with strong flammability are J. sabina and P. tabulaeformis. |
| Key words: entropy eightmethod cone calorimetry flammability fireproof tree species |
