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ADVANCED FINITE ELEMENT MODEL OF TSING MA BRIDGE FOR STRUCTURAL HEALTH MONITORING.

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Title: ADVANCED FINITE ELEMENT MODEL OF TSING MA BRIDGE FOR STRUCTURAL HEALTH MONITORING.
Authors: DUAN, Y. F.1,2 ceyfduan@zju.edu.cn, XU, Y. L.1 ceylxu@polyu.edu.hk, FEI, Q. G.1, WONG, K. Y.3, CHAN, K. W. Y.3, NI, Y. Q.4, NG, C. L.4
Source: International Journal of Structural Stability & Dynamics. Apr2011, Vol. 11 Issue 2, p313-344. 32p. 16 Diagrams, 2 Charts, 5 Graphs.
Subjects: Suspension bridge design & construction, Structural health monitoring, Structural stability, Strains & stresses (Mechanics), Boundary value problems, Finite element method, Vibration tests, Modal analysis
Abstract: The Tsing Ma Bridge is a cable suspension bridge carrying both highway and railway. A bridge health monitoring system called wind and structural health monitoring system (WASHMS) has been installed in the Tsing Ma Bridge and operated since 1997 to monitor the structural performance and its associated loads and environments. However, there exists a possibility that the worst structural conditions may not be directly monitored due to the limited number of sensors and the complexity of structure and loading conditions. Therefore, it is an essential task to establish structural performance relationships between the critical locations/components of the bridge and those instrumented by the WASHMS. Meanwhile, to develop and validate practical and effective structural damage detection techniques and safety evaluation strategies, the conventional modeling for cable-supported bridges by approximating the bridge deck as continuous beams or grids is not applicable for simulation of real damage scenarios. To fulfil these tasks, a detailed full three-dimensional (3D) finite element model of the Tsing Ma Bridge is currently established for direct computation of the stress/strain states for all important bridge components. This paper presents the details of establishing this full 3D finite element model and its calibration. The major structural components are modeled in detail and the connections and boundary conditions are modeled properly, which results in about half million elements for the complete bridge model. The calibration of vibration modes and stresses/strains due to passing trains is carried out, and a good agreement is found between the computed and measured results. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: ADVANCED FINITE ELEMENT MODEL OF TSING MA BRIDGE FOR STRUCTURAL HEALTH MONITORING.
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  Data: <searchLink fieldCode="AR" term="%22DUAN%2C+Y%2E+F%2E%22">DUAN, Y. F.</searchLink><relatesTo>1,2</relatesTo><i> ceyfduan@zju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22XU%2C+Y%2E+L%2E%22">XU, Y. L.</searchLink><relatesTo>1</relatesTo><i> ceylxu@polyu.edu.hk</i><br /><searchLink fieldCode="AR" term="%22FEI%2C+Q%2E+G%2E%22">FEI, Q. G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22WONG%2C+K%2E+Y%2E%22">WONG, K. Y.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22CHAN%2C+K%2E+W%2E+Y%2E%22">CHAN, K. W. Y.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22NI%2C+Y%2E+Q%2E%22">NI, Y. Q.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22NG%2C+C%2E+L%2E%22">NG, C. L.</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Structural+Stability+%26+Dynamics%22">International Journal of Structural Stability & Dynamics</searchLink>. Apr2011, Vol. 11 Issue 2, p313-344. 32p. 16 Diagrams, 2 Charts, 5 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Suspension+bridge+design+%26+construction%22">Suspension bridge design & construction</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+health+monitoring%22">Structural health monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+stability%22">Structural stability</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+value+problems%22">Boundary value problems</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Vibration+tests%22">Vibration tests</searchLink><br /><searchLink fieldCode="DE" term="%22Modal+analysis%22">Modal analysis</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The Tsing Ma Bridge is a cable suspension bridge carrying both highway and railway. A bridge health monitoring system called wind and structural health monitoring system (WASHMS) has been installed in the Tsing Ma Bridge and operated since 1997 to monitor the structural performance and its associated loads and environments. However, there exists a possibility that the worst structural conditions may not be directly monitored due to the limited number of sensors and the complexity of structure and loading conditions. Therefore, it is an essential task to establish structural performance relationships between the critical locations/components of the bridge and those instrumented by the WASHMS. Meanwhile, to develop and validate practical and effective structural damage detection techniques and safety evaluation strategies, the conventional modeling for cable-supported bridges by approximating the bridge deck as continuous beams or grids is not applicable for simulation of real damage scenarios. To fulfil these tasks, a detailed full three-dimensional (3D) finite element model of the Tsing Ma Bridge is currently established for direct computation of the stress/strain states for all important bridge components. This paper presents the details of establishing this full 3D finite element model and its calibration. The major structural components are modeled in detail and the connections and boundary conditions are modeled properly, which results in about half million elements for the complete bridge model. The calibration of vibration modes and stresses/strains due to passing trains is carried out, and a good agreement is found between the computed and measured results. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1142/S0219455411004117
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        Text: English
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        PageCount: 32
        StartPage: 313
    Subjects:
      – SubjectFull: Suspension bridge design & construction
        Type: general
      – SubjectFull: Structural health monitoring
        Type: general
      – SubjectFull: Structural stability
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
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      – SubjectFull: Boundary value problems
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      – SubjectFull: Finite element method
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      – SubjectFull: Vibration tests
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      – SubjectFull: Modal analysis
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      – TitleFull: ADVANCED FINITE ELEMENT MODEL OF TSING MA BRIDGE FOR STRUCTURAL HEALTH MONITORING.
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              Text: Apr2011
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