期刊论文

Research on the mechanical properties of reconsolidated bamboo column under long term axial compression

中文

四川建筑科学研究

1008-1933

2019

45

5

27-31

10.19794/j.cnki.1008-1933.2019.0027

国家自然科学基金（51308556）；

本校为第一机构

重组竹是一种将竹材重新组织并加以强化成型的生物质材料。本文进行了重组竹柱的长期受压试验研究,长期受压试验在室内环境中进行,利用徐变仪对试件进行了长期加载,观测时间为240 d,积累了试件变形、轴压比及与时间相关的第一手数据,为深入分析重组竹柱的蠕变性能提供了依据,采用Burgers模型对试验结果进行了非线性拟合并确定了蠕变随时间变化的函数。结果表明,重组竹柱具有良好的力学性能,轴压比不大于0.5时,柱变形随时间的增长基本保持稳定,采用Burgers模型能够较好地模拟重组竹柱的蠕变规律。

Reconsolidated bamboo is a kind of biological materials that reorganizes and strengthens bamboo materials.This article has discussed the long term compression test of the reconsolidated bamboo column.The long term compression test is conducted in the indoor environment,using the creep apparatus to load the specimen for a long time,the time used to observe the test phenomenon is 240 days,then we have acquired the first hand date such as the specimen deformation and axial compression ratio and others correlated with time.For more deep analysis of the creep properties of reconsolidated bamboo,the...