无腹筋混凝土受剪梁声发射灰色理论预测模型

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发布时间：2020-01-06 00:00:00

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无腹筋混凝土受剪梁声发射灰色理论预测模型

Grey Theory Prediction Model of Acoustic Emission of Concrete Beam Without Abdominal Reinforcement

2021年第5期

声发射；灰色模型；修正系数；损伤预测；混凝土梁

Acoustic emission; Grey model; Correction coefficient; Damage prediction; Concrete beam

2021年第5期

10.19761/j.1000-4637.2021.05.065.06

国家自然科学基金项目（51668060、51668061）。

李向阳，秦拥军，吕旭滨

新疆大学建筑工程学院，新疆乌鲁木齐 830047

李向阳，秦拥军，吕旭滨

李向阳,秦拥军,吕旭滨.无腹筋混凝土受剪梁声发射灰色理论预测模型[J].混凝土与水泥制品,2021(5):65-70.

LI X Y,QIN Y J,LYU X B.Grey Theory Prediction Model of Acoustic Emission of Concrete Beam Without Abdominal Reinforcement[J].CHINA CONCRETE AND CEMENT PRODUCTES,2021(5):65-70.

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摘要：建立了无腹筋混凝土梁受剪破坏中声发射现象的声发射灰色预测模型，并采用修正方法对模型进行了修正。结果表明：采用两次修正、调整系数a和一次修正三种方法引入修正系数对GM（1，1）模型的预测精度有较大提高，对声发射（AE）累计事件数的数值预测效果有较好的拟合性，AE累计事件数变化趋势的预测结果与试验结果之间的差异较小，可以实现对无腹筋混凝土梁受剪破坏的判别与预测。 Abstract: The grey theory prediction model of acoustic emission in shear failure of concrete beams without abdominal reinforcement was established, and the model was modified by the modified method. The results show that the prediction accuracy of GM (1,1) model is greatly improved by using the three methods of two corrections, adjustment coefficient a and one correction to introduce correction coefficients, and the acoustic emission(AE) accumulative total number of the numerical prediction results have good fitting, and the difference between the predicted results and experimental results of AE accumulative events change trend is low, which can realize the discrimination and prediction of the shear failure of concrete beams without abdominal reinforcement.

英文名 : Grey Theory Prediction Model of Acoustic Emission of Concrete Beam Without Abdominal Reinforcement

刊期 : 2021年第5期

关键词 : 声发射；灰色模型；修正系数；损伤预测；混凝土梁

Key words : Acoustic emission; Grey model; Correction coefficient; Damage prediction; Concrete beam

刊期 : 2021年第5期

DOI : 10.19761/j.1000-4637.2021.05.065.06

文章编号 :

基金项目 : 国家自然科学基金项目（51668060、51668061）。

作者 : 李向阳，秦拥军，吕旭滨

单位 : 新疆大学建筑工程学院，新疆乌鲁木齐 830047

李向阳，秦拥军，吕旭滨

李向阳,秦拥军,吕旭滨.无腹筋混凝土受剪梁声发射灰色理论预测模型[J].混凝土与水泥制品,2021(5):65-70.

LI X Y,QIN Y J,LYU X B.Grey Theory Prediction Model of Acoustic Emission of Concrete Beam Without Abdominal Reinforcement[J].CHINA CONCRETE AND CEMENT PRODUCTES,2021(5):65-70.

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引用本文

Abstract: The grey theory prediction model of acoustic emission in shear failure of concrete beams without abdominal reinforcement was established, and the model was modified by the modified method. The results show that the prediction accuracy of GM (1,1) model is greatly improved by using the three methods of two corrections, adjustment coefficient a and one correction to introduce correction coefficients, and the acoustic emission(AE) accumulative total number of the numerical prediction results have good fitting, and the difference between the predicted results and experimental results of AE accumulative events change trend is low, which can realize the discrimination and prediction of the shear failure of concrete beams without abdominal reinforcement.

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无腹筋混凝土受剪梁声发射灰色理论预测模型

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