| 应力谱软件编制及其在数据分析中的应用 |
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| 引用本文： | 邵伯兴,郭俊.应力谱软件编制及其在数据分析中的应用[J].现代交通技术,2011,8(3):48-50. |
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| 作者姓名： | 邵伯兴 郭俊 |
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| 作者单位： | 1. 江苏润扬大桥发展有限责任公司,江苏镇江,212115
2. 江苏省交通科学研究院股长大桥梁健康检测与诊断技术交通行业重点实验室,江苏南京,211112 |
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| 摘 要： | 应力谱监测是桥梁结构安全监测系统中一个部分,在数据分析中有重要作用。在应力谱的编制中,作为主要部分的雨流计数法由于比较符合疲劳损伤规律,目前应用较广泛,但尚未在桥梁结构健康监测系统的在线数据分析工作中得到应用。为此,该文根据雨流法的原理和改进算法,编写了应变时程的雨流计数程序,并将润扬大桥结构安全监测系统输出的应变时程数据进行在线计算,得到了桥梁相关构件的应力谱,为系统数据分析工作提供了重要依据。新开发的软件作为润扬大桥结构安全监测系统的一部分,能够对系统在交通等随机荷载下实时采集的应变时程数据进行分析,并由获得的应力谱得到润扬大桥相关构件的应力状况。
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| 关 键 词： | 桥梁工程 应力谱 雨流计数法 健康监测 应变时程 |
Stress Spectrum Software and Its Application in Data Analyses |
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| Shao Boxing,Guo Jun.Stress Spectrum Software and Its Application in Data Analyses[J].Modern Transportation Technology,2011,8(3):48-50. |
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| Authors: | Shao Boxing Guo Jun |
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| Institution: | Shao Boxing~1,Guo Jun~2(1.Jiansu Runyang Bridge Development Co.,Ltd.,Zhengjiang 212115,Chian,2.Key Laboratory of Long-span Bridge Health Inspection & Detection Technology of Ministry of Transport,Jiangsu Transportation Research Institute,Nanjing 211112,China) |
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| Abstract: | Monitoring of stress spectrum of key components of bridges is one part of Structural Health Monitoring System(SHMS) of bridges and will be capable of taking effect in future data analyses.Since rain flow counting method fits well the law of fatigue damage,it is adopted widely.But it has not been applied to online data analyses in the SHMS extensively.The software of rain flow counting was programmed based on the principle of rail flow method.The stress spectrums of concerned components based on the strain-t... |
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| Keywords: | bridge engineering stress spectrum rain flow counting method health monitoring strain-time history |
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