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格鲁班(Glubam)胶合竹材作为一种新型建筑材料,研究其耐火性能并与木材进行比较,对胶合竹材单板及杉木单板分别进行了恒温及ISO 834标准升温条件下的单面受火试验,测得了其炭化速率及不同受火条件下试件内部的温度-时间变化曲线。结果表明,胶合竹材的炭化速率低于杉木,其炭化规律与木材相似,即在受火初期炭化层厚度增加较快,炭化速率较大,随时间延长炭化速率逐渐降低,且受火温度越高,材料的炭化速率越大,同时试验测得在标准火灾条件下,胶合竹材受火20 min的平均炭化速率为0.64 mm/min。此外,通过温度场数据的分析比较发现,胶合竹材的传热速率明显低于杉木,其具有优于杉木的隔热性能,且能够满足相关规范对建筑构件隔热性能的要求。
As a new type of building material, Glubam glulam bamboo was studied for fire resistance and compared with wood. The single-sided fire test of glued bamboo veneer and Chinese fir veneer was carried out under constant temperature and ISO 834 standard temperature respectively , The carbonization rate and the temperature-time curve of the specimen under different fire conditions were measured. The results showed that the carbonization rate of glued bamboo was lower than that of Chinese fir, and its carbonization law was similar to that of wood, that is, the thickness of carbonized layer increased rapidly and the charring rate was higher at the initial stage of fire, the carbonization rate decreased gradually with the increase of time, , The greater the carbonization rate of the material, meanwhile, the average carbonization rate of the glued bamboo exposed to fire for 20 min under the standard fire conditions was 0.64 mm / min. In addition, through the analysis and comparison of temperature field data, the heat transfer rate of glued bamboo is obviously lower than that of Chinese fir, which has the better thermal insulation performance than Chinese fir, and can meet the requirements of the relevant norms on the insulation performance of building components.