期刊文献+

考虑温湿度影响的桥梁结构模态频率分析 被引量:5

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摘要 文中以天津永和大桥为例,主要研究了温度和湿度效应对于模态频率影响,并选择非线性主成分分析(Nonlinear Principal Component Analysis,NLPCA)作为模态频率预处理的方法,以将温湿度对模态参数的影响和其他因素的影响区别开来,经过NLPCA处理的数据隐含了模态频率与温湿度的关系,而后应用神经网络(Artificial Neural Network,ANN)来构造温湿度与环境因素之间的关系模型。
出处 《天津建设科技》 2008年第3期51-55,共5页 Tianjin Construction Science and Technology
基金 国家杰出青年科学基金(50525823) 国家自然科学基金重点项目(50238040 50538020) 国家自然科学基金重大国际合作项目(50278029)
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参考文献6

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同被引文献36

  • 1于辉,崔莉莉.基于温度影响的简支梁桥损伤识别的研究[J].公路交通科技(应用技术版),2013,9(11):172-173. 被引量:1
  • 2樊可清,倪一清,高赞明.大跨度桥梁模态频率识别中的温度影响研究[J].中国公路学报,2006,19(2):67-73. 被引量:35
  • 3李爱群,丁幼亮,费庆国,缪长青.润扬大桥斜拉桥模态频率识别的环境变异性[J].东南大学学报(自然科学版),2007,37(2):245-250. 被引量:17
  • 4Zhao J,John T D.Dynamic monitoring of steel girder highway bridge[J].Journal of Bridge Engineering,2002,7(6):350-356.
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  • 7Ni Y Q, Hua X G, Fan K Q, et al. Correlating Modal Properties with Temperature Using Long-term Monitoring Data and Support Vector Machine Technique[J]. Engineering Structures, 2005(27): 1762-1773.
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  • 10Bart Peeters, Guido De Roeck. One-year Monitoring of the Z24-Bridge: Environmental Effects Versus Damage Events [J]. Earthquake Engineering and Structural Dynamics, 2001(30): 149-171.

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