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Dynamic Characterization of a Stress Ribbon and Butterfly Arch Pedestrian Bridge Using Wireless Measurements

  • Leqia HeEmail author
  • Zhiyong Zhang
  • Giuseppe Carlo Marano
  • Bruno Briseghella
  • Junqing Xue
  • Zhengbin Ni
Conference paper
Part of the Structural Integrity book series (STIN, volume 11)

Abstract

For their aesthetic values, both arches and stress-ribbon decks are widely used in design of pedestrian bridges. The combination of the two systems provides the solution of a self-anchored structure. In the current paper, the dynamic characteristics of a short-span stress ribbon and butterfly arch bridge are investigated by means of operational modal analysis. Ambient vibration of the bridge is recorded by using several highly-synchronous three-axial wireless accelerometers deployed on the bridge deck. Modal parameters, including natural frequencies, mode shapes and damping ratios are extracted from the measurements. By comparing the experimental modal results to their numerical counterparts obtained from a preliminary finite element model, interesting results are found both related to the flexibility of the whole system and the stiffness contribution of the non-structural elements. The findings also serve as the basis of the serviceability assessment of the pedestrian bridge.

Keywords

Stress-ribbon Butterfly arch Pedestrian bridge Operational modal analysis 

Notes

Acknowledgement

Prof. Guido De Roeck is acknowledged for his guidance during the first author’s post-doctoral research period at KU Leuven and Dr. Edwin Reynders for his instruction with the identification software MACEC. The financial supports from the Fuzhou municipal city under the research project “2017-G-67” and the Fuzhou University under the research project “XRC-1675” are also acknowledged.

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Leqia He
    • 1
    Email author
  • Zhiyong Zhang
    • 1
  • Giuseppe Carlo Marano
    • 1
  • Bruno Briseghella
    • 1
  • Junqing Xue
    • 1
  • Zhengbin Ni
    • 2
  1. 1.Sustainable and Innovative Bridge Engineering Research Center, College of Civil EngineeringFuzhou UniversityFuzhouPeople’s Republic of China
  2. 2.Fujian Communications Planning and Design InstituteFuzhouPeople’s Republic of China

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