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采用欧洲规范确定房屋的火灾荷载后,使用木垛火作为火源,对一足尺竹结构轻型框架房屋进行火灾模拟试验,研究了此类型房屋的火灾安全性能。历时1h的火灾作用后,墙体骨柱在9.5mm厚普通石膏板的保护下,平均炭化深度仅为截面尺寸的1/3,而楼盖格栅在19mm厚防火石膏板的保护下几乎没有火灾损伤,房屋最终保持了良好的结构整体性,表明此类竹结构房屋耐火时间可以达到1.0h以上,具有良好的火灾安全性能;墙体和楼板内外表面的热电偶数据显示迎火面墙体最高温度达到686℃的情况下,背火面温度维持在一个较低的温度水平(最高温度仅为46～84℃),表明采用石膏板和岩棉的房屋墙体和楼板具有良好的保温隔热性能;在试验研究的基础上,对竹结构轻型框架房屋的构造措施提出了设计建议。
After the fire load of the house was determined by the European Code, the wood fire was used as the fire source to simulate the fire of a full-size bamboo frame light-weight frame house. The fire safety performance of this type of house was studied. After a 1-hour fire, the average depth of carbonization was only 1/3 of the cross-sectional area under the protection of ordinary gypsum board with a thickness of 9.5 mm. However, the floor grille had almost no protection under the 19-mm-thick fire gypsum board Fire damage, the house eventually maintained a good structural integrity, indicating that such bamboo structure fire-resistant time can reach 1.0h above, with good fire safety performance; wall and floor inside and outside the surface of the thermocouple data show the fire wall The maximum temperature of 686 ℃, the backfire surface temperature maintained at a lower temperature level (the maximum temperature is only 46 ~ 84 ℃), indicating that the use of gypsum board and rock wool wall and floor of the house has a good thermal insulation On the basis of the experimental research, the design suggestions for the structural measures of the light-weight bamboo frame house are put forward.