| 简支梁桥冲击系数统计分析研究 |
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| 引用本文： | 陈春东,唐光武.简支梁桥冲击系数统计分析研究[J].公路交通技术,2014(1):84-87. |
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| 作者姓名： | 陈春东 唐光武 |
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| 作者单位： | [1]重庆交通大学,重庆400074 [2]招商局重庆交通科研设计院有限公司,重庆400067 |
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| 摘 要： | 列举部分国家规范对冲击系数的计算方法，并对大量简支梁桥实测冲击系数样本进行统计分析，得出结论：JTGD60—2004《公路桥涵设计通用规范》中冲击系数取值的安全储备略显不足。对样本数据进行回归分析，得到桥梁实测基频一冲击系数的回归方程，并基于此来研究冲击系数计算的改进方法。
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| 关 键 词： | 简支梁桥 冲击系数 统计分析 回归方程 |
Statistical Analysis and Study of Impact Coefficients of Simply Supported Beam Bridges |
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| CHEN Chundong,TANG Guangwu.Statistical Analysis and Study of Impact Coefficients of Simply Supported Beam Bridges[J].Technology of Highway and Transport,2014(1):84-87. |
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| Authors: | CHEN Chundong TANG Guangwu |
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| Institution: | CHEN Chundong, TANG Guangwu |
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| Abstract: | This paper lists calculation methods for impact coefficients in part of national specifications and carries out statistical analysis for samples of the measured impact coefficients of plenty of simply supported beam bridges. A conclusion is drawn that safety margin of impact coefficient values in JTG D60-2004 “General Specifications for Design of Highway Bridges and Culverts” is slightly insufficient. The paper conducts regression analysis for sample data to obtain the regression equation of the measured base frequency-impact coefficients of bridges and studies improvement methods for calculation of impact coefficients accordingly. |
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| Keywords: | simply supported beam bridge impact coefficient statistical analysis regression equation |
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