| 预应力混凝土斜拉桥自适应施工控制分析 |
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| 引用本文： | 赵文武,辛克贵.预应力混凝土斜拉桥自适应施工控制分析[J].工程力学,2006,23(2):78-83. |
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| 作者姓名： | 赵文武 辛克贵 |
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| 作者单位： | 清华大学土木工程系,教育部结构与振动重点实验室,北京,100084 |
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| 摘 要： | 在预应力混凝土斜拉桥的施工过程中对主梁线形与结构内力的控制非常重要。提出一种自适应施工控制分析方法。其中用改进刚性支承连续梁方法分析合理成桥状态,用正装迭代法分析合理施工状态,用基于最小二乘法的参数复核识别算法进行参数估计,用带残差修正的灰色预测模型进行参数预测。通过算例分析表明,提出的施工控制分析方法可行且结果合理。
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| 关 键 词： | 预应力混凝土斜拉桥 施工控制 最小二乘法 改进刚性支承连续梁法 参数复核识别算法 灰色预测模型 |
| 文章编号： | 1000-4750（2006）02-0078-06 |
| 收稿时间： | 2004-01-19 |
| 修稿时间： | 2004-01-192004-06-26 |
SELF-ADAPTIVE CONSTRUCTION CONTROL ANALYSIS OF PRE-STRESSED CONCRETE CABLE-STAYED BRIDGES |
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| ZHAO Wen-wu,XIN Ke-gui.SELF-ADAPTIVE CONSTRUCTION CONTROL ANALYSIS OF PRE-STRESSED CONCRETE CABLE-STAYED BRIDGES[J].Engineering Mechanics,2006,23(2):78-83. |
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| Authors: | ZHAO Wen-wu XIN Ke-gui |
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| Affiliation: | Department of Civil Engineering, Tsinghua University, Key Laboratory of Structural Engineering and Vibration of Education Ministy, Beijing 100084, China |
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| Abstract: | The control of girder geometry and internal forces is very important in the construction of pre-stressed concrete cable-stayed bridges. A self-adaptive construction control analysis method is proposed. The ameliorated continuous rigid-support beam method is proposed to analyze rational completed state. The forward-iteration method is utilized to analyze the rational construction state. The parameter check-identification method based on the least squares method is proposed for parameter identification. The grey forecast model with error correction is used to forecast parameters. The analysis result of a symmetric cable-stayed bridge shows that the self-adaptive construction control analysis method is feasible and reasonable. |
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| Keywords: | pre-stressed concrete cable-stayed bridge construction control least squares method ameliorated continuous rigid-support beam method parameter check-identification method grey forecast model |
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