| 基于相关性的无损检测混凝土强度组合算法 |
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| 引用本文： | 王龙国,周启国,张亦飞,朱建海,康建华. 基于相关性的无损检测混凝土强度组合算法[J]. 混凝土, 2008, 0(8) |
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| 作者姓名： | 王龙国 周启国 张亦飞 朱建海 康建华 |
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| 作者单位： | 宁波市交通工程质量监督站,浙江,宁波,315040;国家海洋局,第二海洋研究所,浙江,杭州,310012 |
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| 基金项目： | 浙江省交通厅科技基金，宁波市交通科技计划项目 |
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| 摘 要： | 根据组合预测的思想,将无损检测中回弹法和超声法的换算强度进行加权组合,按组合计算值与实测值序列的夹角余弦值最大作为优化准则得到组合的权重系数,构建了一种新的无损检测混凝土强度换算值计算方法.实例计算结果表明:组合计算方法的各项拟合误差指标均优于回弹法和超声法,为改善混凝土强度无损检测精度提供了一种新途径.
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| 关 键 词： | 混凝土抗压强度 无损检测 回弹法 超声法 相关性 夹角余弦 遗传算法 |
Combined forecasting of compression strength of concrete based on correlation coefficient of included angle cosine |
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| WANG Long-guo,ZHOU Qi-guo,ZHANG Yi-fei,ZHU Jian-hai,Kang Jian-hua. Combined forecasting of compression strength of concrete based on correlation coefficient of included angle cosine[J]. Concrete, 2008, 0(8) |
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| Authors: | WANG Long-guo ZHOU Qi-guo ZHANG Yi-fei ZHU Jian-hai Kang Jian-hua |
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| Affiliation: | WANG Long-guo 1,ZHOU Qi-guo 1,ZHANG Yi-fei 2,ZHU Jian-hai 1,Kang Jian-hua 2(1.Ningbo Municipal Transportation Engineering Quality Supervising Bureau,Ningbo 315040,China,2.The Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China) |
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| Abstract: | Based on the thoughts of combined forecasting,a kind of combined forecasting for computing conversion value for compression strength of concrete at detecting region by ultrasonic method and rebound method respectively was introduced.In the model,the correlation coefficient of included angle cosine to maximum was taken as the optimization rule.Results of a practical example show that the predicting ability of the combined forecasting model,in view of six error indexes,is better than those of selected single ... |
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| Keywords: | compression strength of concrete nondestructive test rebound method ultrasonic method correlativity included angle cosine genetic algorithms(GA) |
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