KO Noryo

写真a

Affiliation Department etc.

Title

Assistant Professor

Graduating School

  • 2008.09
    -
    2012.06

    Jilin University, China   College of Construction Engineering   Civil Engineering   Graduated

Graduate School

  • 2012.09
    -
    2017.06

    Tongji University, China  Graduate School of Engineering  Civil EngineeringDoctor's Course  Completed

Degree

  • Tongji University, China -  Doctor's Degree in Engineering

  • Jilin University, China -  Bachelor's Degree in Engineering

External Career

  • 2017.09
    -
    2018.08

    University of British Columbia, Canada   School of Engineering   Researcher  

Academic Society Affiliations

  •  
     
     

    American Society of Civil Engineers (ASCE)

  • 2018.03
    -
    Now

    Japan Society of Civil Engineers

Field of expertise (Grants-in-aid for Scientific Research classification)

  • Civil and environmental engineering

 

Papers

  • D Jia, J Mao, Q Guo, Z Yang, N Xiang. A flexure-capacity design method and seismic fragility assessment of FRP/steel double-reinforced bridge piers

    D Jia, J Mao et al.

    Structure and Infrastructure Engineering ( Taylor & Francis Online )    2019.12  [Refereed]

    Research paper (scientific journal)   Single Author

  • Xiang, N. Chen, X., Alam, M.S. Probabilistic seismic fragility and loss analysis of concrete bridge piers with superelastic shape memory alloy-steel coupled reinforcing bars. Engineering Structures.

    Xu Chen, M. Shahria Alam

    Engineering Structures ( Elsevier )    2019.12  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Xiang, N., Li, J. Utilizing yielding steel dampers to mitigate transverse seismic irregularity of a multi-span continuous bridge with unequal height piers. Engineering Structures.

    Jianzhong Li

    Engineering Structures ( Elsevier )    2019.12  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Xiang, N., Alam, M. S., & Li, J. (2019). Yielding Steel Dampers as Restraining Devices to Control Seismic Sliding of Laminated Rubber Bearings for Highway Bridges: Analytical and Experimental Study. Journal of Bridge Engineering, 24(11), 04019103.

    Jianzhong Li

    Journal of Bridge Engineering   24   2019.09  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    Abstract: The performance of concrete shear keys as restraining devices for laminated rubber bearing–supported highway bridges was
    examined in past earthquakes such as the 1999 Chi-Chi and the 2008 Wenchuan earthquakes, where the widely observed shear key failure and
    bearing sliding significantly increased the risk of span unseating. To avoid such scenarios, economical yielding steel dampers are proposed to
    replace conventional shear keys as restraining devices on bridges. If designed properly, the steel dampers are expected to control bearing
    displacement within limit without imposing much additional demand on the substructure. The primary objective of this study was to develop a
    simplified procedure for designing the yielding steel dampers to control sliding displacement of the laminated rubber bearings to a specified
    value for the considered earthquake hazard. By treating the global bridge system as a serial-parallel combination of different components, the
    correlations of various parameters were investigated. On that basis, a simple formulation was developed, followed by a series of nonlinear time
    history analyses and a shake table test as verifications. The outcome of this study highlights the cost-effectiveness of using yielding steel
    dampers and laminated rubber bearings as an earthquake-resistant system for highway bridges compared with other popular isolation systems.
    The proposed design procedure was also verified to be quite efficient in properly designing the yielding steel dampers for a satisfactory bridge
    seismic performance

  • Mao, J., Jia, D., Yang, Z., & Xiang, N*. Seismic Performance of Concrete Bridge Piers Reinforced with Hybrid Shape Memory Alloy (SMA) and Steel Bars. Journal of Earthquake and Tsunami.

    Jize Mao, Daoguang Jia et al.

    Journal of Earthquake and Tsunami ( World Scientific Publishing Co Pte Ltd )    2019.08  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Xiang, N., Yang, H., & Li, J. (2019). Performance of an isolated simply supported bridge crossing fault rupture: shake table test. Earthquakes and Structures, 16(6), 665-677.

    Huaiyu Yang; Jianzhong Li

    Earthquakes and Structures ( Techno Press )  16 ( 6 ) 665 - 677   2019.06  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    This study utilizes large-scale shake table test to investigate the seismic performance of an isolated bridge with lead rubber bearings crossing an active fault. Two transverse restraining systems with and without shear keys are tested by applying spatially varying ground motions. It is shown that the near-fault span exhibits larger bearing displacement than the crossing-fault span. Bridge piers away from the fault rupture are more vulnerable than those adjacent to the fault rupture by attracting more seismic demand. It is also verified that the shear keys are effective in restraining the bearing displacement on the near-fault span, particularly under the large permanent ground displacement.

  • Xiang, N., Goto, Y., Obata, M., & Alam, M. S. (2019). Passive seismic unseating prevention strategies implemented in highway bridges: A state-of-the-art review. Engineering Structures, 194, 77-93.

    M. Shahria Alam

    Engineering Structures ( Elsevier )  194 ( 1 ) 77 - 93   2019.05

    Research paper (scientific journal)   Single Author

  • Xiang, N., & Alam, M. S. (2019). Displacement-based seismic design of bridge bents retrofitted with various bracing devices and their seismic fragility assessment under near-fault and far-field ground motions. Soil Dynamics and Earthquake Engineering, 119, 75-90.

    M. Shahria Alam

    Soil Dynamics and Earthquake Engineering     2019.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Guo, W., Li, J., & Xiang, N. (2018). Seismic Performance of the Buckling-Restrained Brace Central Buckle for Long-Span Suspension Bridges. Journal of Earthquake and Tsunami, 12(05), 1850015.

    Wei Guo, Jianzhong Li

    Journal of Earthquake and Tsunami     2018.11  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Xiang, N., Alam, M. S., & Li, J. (2018). Shake table studies of a highway bridge model by allowing the sliding of laminated-rubber bearings with and without restraining devices. Engineering Structures, 171, 583-601.

    Jianzhong Li, M. Shahria Alam

    Engineering Structures     2018.09  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

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