Special Issue "Vortex-induced vibration of long-span bridges"

Submission Deadline: 01 October 2020 (closed)
Guest Editors
Xin Zhiqiang, Associate Professor, Department of Engineering Mechanics, Hohai University.
Email: xinzhiqiang@hhu.edu.cn, zqxinhhu@qq.com

Appointment:
2015- present, Associate Professor, Department of Engineering Mechanics, Hohai University.
2012-2014,Postdoctoral Research Scholar, Department of Engineering Mechanics, Hohai University.
Education:
PhD., Hydraulic and Fluvial Dynamics, College of Water Conservancy and hydropower Engineering, Hohai University, 2012;
B.S., Water Conservancy and hydropower Engineering, College of Water Conservancy and hydropower Engineering, Hohai University, 2006.
Research Interests:
Computational fluid dynamics, turbulence and vortex dynamics, flow and structure interaction, ocean Engineering Mechanics.
NSFC Fundings:
1.PI, NSFC, Hydrodynamics and control of self-propelled movement of the three dimensional flexible bionic fish in ground effect, (# 11872174) 2019.1-2022.12.
2.PI, NSFC, Hydrodynamics and control of self-propelled movement of the three dimensional moving wave wall based on ray swimming, (#11302071) 2014.1-2016.12.
3.PI, Fundamental Research Funds for the Central Universities, Control of vortex induced vibration of flexible risers in the complex ocean environment, (#2015B01814) 2015.3-2017.3.

Summary

Many long span bridges are built all over the world in order to meet the needs of transportation development. The increase in span makes the bridge more flexible and more sensitive to wind. Although the divergence flutter has been avoided by raising the critical wind speed of the flutter at design stage, it is difficult to avoid the occurrence of self-excited vortex-induced vibration. In addition, the increase of span reduces the natural frequency of the bridge structure, thus increasing the occurrence frequency of vortex-induced vibration at low wind speed. In recent years, vortex-induced vibrations have been observed many times on many long-span bridges. Vortex induced vibration is a large amplitude vibration phenomenon caused by the vortexes periodically shedding from the structure surface. Although the self-limited characteristics of vortex induced vibration do not directly lead to the structural dynamic instability, large-amplitude vortex-induced vibrations threaten driving safety and cause fatigue damage to bridge structures, which has an impact on the applicability and durability of the structure ( In extreme cases, it may result in damage or fracture of the main members of the structure, and even induce local or overall collapse of the structure). Therefore, it is of great significance to study the vortex-induced vibration of long-span bridges.

The proposed aim of this Special Issue is to present current state-of-the-art research in the field of vortex induced vibration of the long-span bridge including the field measurement, wind tunnel experiment and numerical simulation. We welcome original research articles that focus on the numerical simulation of fluid and structure interaction, the prediction and control of VIV of the prototype bridge, the structural health monitoring and damage identification and analysis of the long-span bridge. The studies of innovative equipment and techniques, high-precision reduced-order modeling and artificial intelligence methods as well as novel active and passive-control devices are encouraged. Note that review articles which describe the current state of the art are also welcome.

 

Potential topics include but are not limited to the following:

• Modelling of fluid and structure interaction of VIV

• Prediction of vortex-induced vibration of the prototype bridge

• Passive and active controls of vortex induced vibration

• Structural health monitoring, damage identification and analysis of the long-span bridge (big data and artificial intelligence methods)

• New observation equipment and experiment technology


Keywords
• Prediction of vortex-induced vibration of the prototype bridge
• Passive and active controls of vortex induced vibration
• Structural health monitoring, damage identification and analysis
• Big data and artificial intelligence methods
• New observation equipment and experiment technology

Published Papers
  • Health Monitoring-Based Assessment of Reinforcement with Prestressed Steel Strand for Cable-Stayed Bridge
  • Abstract This paper presents the method of reinforcing main girder of reinforced concrete cable-stayed bridge with prestressed steel strands. To verify the effectiveness of external prestressed strand reinforcement method. Static load tests and health monitoring-based assessment were carried out before and after reinforcement. Field load test shows that the deflection and stress values of the main girder are reduced by 10%~20% after reinforcement, and the flexural strength and stiffness of the strengthened beam are improved. The deflection and strain data of health monitoring of the specified section are collected. The deflection of the second span is 4 mm~10 mm, the strain… More
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