西北林学院学报2017，Vol.32Issue(4)：240-243,287,5.DOI:10.3969/j.issn.1001-7461.2017.04.40
重组竹高温处理后的性能研究
Performance of Glued Laminated Bamboo after High Temperature Treatment
摘要
Abstract
In order to understand the characteristics of the bamboo timber after high temperature treatment,the bamboo samples were exposed to high temperature from 100℃ to 300℃ for 2 hours,after cooled to room temperature,the mass loss rate,crack width,compressive strength and failure mode were analyzed.The test results showed that the mass loss rate of the glued laminated bamboo gradually increased with the increase of temperature.At 250℃,the samples appeared partial carbonization and the mass loss rate increased to 18.6％ at 300℃.Below 200℃,less cracks occurred,the maximum crack width was only 0.18mm.From 250℃to 300℃,the number of cracks increased and the maximum crack width was 0.52 mm at 300℃.The compressive strength of glued laminated bamboo decreased from 100℃ to 300℃.The compressive strength was 62.58 MPa at 300℃,but the minimum ultimate bearing capacity was only 508.46 kN.The results indicated that glued laminated bamboo had a great compressive strength after high temperature treatment,and it would not significantly reduce the safety performance of the building.关键词
重组竹/高温处理/性能Key words
glued laminated bamboo/high temperature treatment/performance分类
农业科技引用本文复制引用
肖忠平,俞君宝,束必清,张苏俊..重组竹高温处理后的性能研究[J].西北林学院学报,2017,32(4):240-243,287,5.基金项目
2016年江苏省建筑产业现代化专项引导基金示范基地项目(设计研发类):竹木结构建筑产业化研发 （设计研发类）
2014年江苏省“青蓝工程”资助项目. （）
