期刊论文

Experimental andnumericalsimulation on flexural capacity of bamboolog composite beam

中文

中南林业科技大学学报

1673-923X

2020

40

4

120-126

10.14067/j.cnki.1673-923x.2020.04.016

2014DFA53120:国家国际科技合作专项基金 :现代木结构工程材制造 HELFMTS1703:应用技术湖南省工程实验室项目

本校为其他机构

【目的】竹、木结构使用越来越广泛,传统竹、木结构跨度、结构尺寸和承载力受到材料特性多因素影响,大多以钢木、木混等组合居多,竹木组合结构很少,对竹木组合结构受力特性研究甚少。揭示竹木组合梁结构受力特性与承载力计算关系。【方法】以原木为骨架,利用环氧树脂胶合剂连接竹集成材一种竹-原木组合梁试验模型,采用结构尺寸和特性一致的3根原木梁和3根竹-原木组合梁,进行了三分点加载受弯对比试验,分析两种结构梁的破坏形态、极限承载力、抗弯刚度和应变变化规律。【结果】1)原木梁和竹-原木组合梁均发生脆性破坏,两种原材料天然缺陷对受弯承载力有较大影响。2)跨中截面沿高度应变仍基本符合...

【Objective】Bamboo and wood structures are more and more widely used.The traditional bamboo,wood structure span,structural size and bearing capacity are affected by many factors of material characteristics.Most of them are steel,wood and other combinations,bamboo and wood composite structures are very few,and the research on the mechanical characteristics of bamboo and wood composite structures is very few.In order to reveal the relationship between the stress characteristics and bearing capacity of bamboo and wood composite beam structures,th...