| 一种土的阻尼比近似计算方法 |
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| 引用本文： | 陈 伟,孔令伟,朱建群. 一种土的阻尼比近似计算方法[J]. 岩土力学, 2007, 28(Z1): 789-791 |
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| 作者姓名： | 陈 伟 孔令伟 朱建群 |
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| 作者单位： | 中国科学院武汉岩土力学研究所，武汉 430071 |
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| 基金项目： | 湖北省青年杰出人才基金项目(No. 2006ABB012)；中国科学院武汉岩土力学研究所重点实验室开放课题项目(No. Q000306) |
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| 摘 要： | 提出了一种用多边形逼近滞回曲线计算土的阻尼比的方法，该方法可直接利用试验数据进行计算，算法可重复利用，使得阻尼比的计算工作得以简化。将其与传统的椭圆拟合方法计算结果进行了对比，由于实测的滞回圈不是标准的椭圆，两者的计算结果存在一定的差异。
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| 关 键 词： | 阻尼比 滞回圈 |
A simple method to approximately determine the damping ratio of soils |
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| CHEN Wei,KONG Ling-wei,ZHU Jian-qun. A simple method to approximately determine the damping ratio of soils[J]. Rock and Soil Mechanics, 2007, 28(Z1): 789-791 |
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| Authors: | CHEN Wei KONG Ling-wei ZHU Jian-qun |
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| Affiliation: | Institule of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071 China |
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| Abstract: | By replacing the dynamic stress-strain hysteresis loop with polygon, a simple method of determining the damping ratio of soils approximately is proposed. The method can use test results directly, and by using this method, the process of detemining damping ratio will be simplified. Then the results determined by this method and the traditional ellipse pseudo method are compared, differences are found between them because the actual hysteresis loop recorded in dynamic triaxial tests are not standard ellipse. |
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| Keywords: | damping ratio dynamic stress-strain hysteresis loop |
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