| 张博,贾敏,吴兵,张恒嘉.基于稳健估计的混凝土抗压强度测试分析[J].唐山学院学报,2019,32(3):40-43 |
| 基于稳健估计的混凝土抗压强度测试分析 |
| Test Analysis of Concrete Compressive Strength Based on Robust Estimation |
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| DOI：10.16160/j.cnki.tsxyxb.2019.03.010 |
| 中文关键词: 混凝土 抗压强度 稳健估计 最小二乘法 |
| 英文关键词: concrete compressive strength robust estimation least squares |
| 基金项目: |
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| 摘要点击次数: 7035 |
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| 中文摘要: |
| 应用基于稳健估计和基于最小二乘法的三次多项式曲线模型，分析混凝土在养护28 d期间抗压强度的变化规律，相比传统最小二乘法，稳健估计能够减小数据误差对拟合曲线的影响，从而达到与实际测量相吻合的效果，较准确地预测出混凝土在不同养护时期的抗压强度值。 |
| 英文摘要: |
| Based on robust estimation and cubic polynomial curve model with least squares,the variation pattern is analyzed for concrete compressive strength during the 28 d curing period. Compared with traditional least squares method,robust estimation can reduce the influence of data error on the fitted curve so that it accords with the actual measurement. This can accurately predict the compressive strength of the concrete during different curing periods. |
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