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| 摘要: |
| 经Timoshenko梁方程推导出了以自振频率为变量的自由-自由梁横向振动弯曲弹性模量和剪切弹性模量的求解方程.通过对规格材动态振动和静态弯曲测试研究,发现用这种动态测试方法对规格材弹性性质进行预测效果较好,总回归方程相关系数在0.7以上,可以在实际中用于对足尺规格材的弹性性质进行动态评估. |
| 关键词: 横向振动 木结构建筑 规格材 弹性性质 |
| DOI： |
| 分类号:TU528 |
| 基金项目:引进国际先进农业科技计划(948计划) |
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| Evaluating Static Elastic Properties of Wood Structure Building Dimension Lumber Using Transverse Vibration |
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ZHOU Hai-bin REN Hai-qing YIN Ya-fang HU Lin-juan
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| Abstract: |
| Based on the Timoshenko equation the paper deduced frequency equations for calcula-(ting) bending and shear modulus.By the dynamical vibration and static bending test,it is found that the dynamical test method has a good estimation of the elastic properties of dimension lumber.The correlation coefficient of the regression equation from all data is above 0.7.The dyna-(mical) test method can be used in practical application for dynamical evaluation on elastic properties of full-size dimension lumber. |
| Key words: transverse vibration,wood structure building,dimension lumber,elastic property |
