钢筋混凝土梁裂缝诊断的一种智能方法
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摘要
裂缝诊断研究是近年来土木工程结构中一个重要的研究课题。及时诊断出结构的裂缝位置和裂缝深度,采取必要的维护措施,可以避免由于裂缝的发展而导致结构破坏。采用结构动态响应统计特征作为损伤指标,建立BP神经网络对钢筋混凝土简支梁进行裂缝诊断研究,较好的验证了基于结构动态响应统计特征的结构损伤识别人工神经网络方法在裂缝诊断中的适用性。
The structural crack diagnosis has been an important research subject in the field of civil engineering.To avoid the further development of cracks and subsequent damage,the location and depth of cracks must be diagnosed in real-time and some necessary protecting measures should be adopted.The statistical property of structural dynamic response is employed as the damage index.The artificial neural network(ANN) method based on the damage index is proposed and implemented in the crack diagnosis of simple supported RC beam.The ANN method application is also extended to more fields.
The structural crack diagnosis has been an important research subject in the field of civil engineering.To avoid the further development of cracks and subsequent damage,the location and depth of cracks must be diagnosed in real-time and some necessary protecting measures should be adopted.The statistical property of structural dynamic response is employed as the damage index.The artificial neural network(ANN) method based on the damage index is proposed and implemented in the crack diagnosis of simple supported RC beam.The ANN method application is also extended to more fields.
引文
[1]刘玉明.钢筋混凝土梁的动力损伤诊断研究[D].长沙:湖南大学,1999.
[2]罗福午.建筑结构缺陷事故的分析及防治[M].北京:清华大学出版社,1992:256-258.
[3]Yao C C,Chang K C,Lee G C.Damage Diagnosis of Steel FramesUsing Vibrational Signature Analysis[J].J.Engrg.Mech,ASCE,1992,118(9):194-196.
[4]Matias E.Structural Integrity Evaluation of a Fixed Platform Using Vi-bration Criteria[J].Offshore Technology conference,1977:247-255.
[5]李忠献,刘永光.时域内梁式结构的两阶段裂缝诊断方法[J].天津大学学报,2007,35(4):381-386.
[6]刘永光.混凝土等效断裂韧度的计算模式与钢筋混凝土梁裂缝的诊断方法[D].天津:天津大学,
[7]王柏生,丁皓江.参数误差对用神经网络进行结构损伤识别的影响[J].土木工程学报,2000,33(1):50-55.
[8]杨晓明,刘海卿.基于结构动态响应统计特征的损伤指标研究[J].地震工程与工程振动,2009(2):21-23.
[9]Alex C.Scordelis.Past,Present and Future Developments.FiniteElement Analysis of Reinforced Concrete Structures[J].NewYork,1985:657-666.
[10]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:163-166,291-291.
[11]Hirosawa analysis M.Past Experimental Results on Reinforced Con-crete Shear Walls on Them Kenchiku kenkyu,Shiryo,Build Res.Inst[J].Ministry Construction,Tokyo,(in Japanese),1957,18(6):55-79.
[12]Saenz L P.Discussion of Equation for the Stress-Strain Curve ofConcrete Desayi and Krishman[J].Amer.Concr.Inst.,1964,9(61):1229-1235.
[2]罗福午.建筑结构缺陷事故的分析及防治[M].北京:清华大学出版社,1992:256-258.
[3]Yao C C,Chang K C,Lee G C.Damage Diagnosis of Steel FramesUsing Vibrational Signature Analysis[J].J.Engrg.Mech,ASCE,1992,118(9):194-196.
[4]Matias E.Structural Integrity Evaluation of a Fixed Platform Using Vi-bration Criteria[J].Offshore Technology conference,1977:247-255.
[5]李忠献,刘永光.时域内梁式结构的两阶段裂缝诊断方法[J].天津大学学报,2007,35(4):381-386.
[6]刘永光.混凝土等效断裂韧度的计算模式与钢筋混凝土梁裂缝的诊断方法[D].天津:天津大学,
[7]王柏生,丁皓江.参数误差对用神经网络进行结构损伤识别的影响[J].土木工程学报,2000,33(1):50-55.
[8]杨晓明,刘海卿.基于结构动态响应统计特征的损伤指标研究[J].地震工程与工程振动,2009(2):21-23.
[9]Alex C.Scordelis.Past,Present and Future Developments.FiniteElement Analysis of Reinforced Concrete Structures[J].NewYork,1985:657-666.
[10]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:163-166,291-291.
[11]Hirosawa analysis M.Past Experimental Results on Reinforced Con-crete Shear Walls on Them Kenchiku kenkyu,Shiryo,Build Res.Inst[J].Ministry Construction,Tokyo,(in Japanese),1957,18(6):55-79.
[12]Saenz L P.Discussion of Equation for the Stress-Strain Curve ofConcrete Desayi and Krishman[J].Amer.Concr.Inst.,1964,9(61):1229-1235.
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