Health monitoring system for Dafosi cable-stayed bridge

2003 ◽  
Author(s):  
Yong Zhu ◽  
Yumei Fu ◽  
Weimin Chen ◽  
Shanglian Huang ◽  
Kim D. Bennett
Keyword(s):  
Monitoring System ◽  
Health Monitoring ◽  
Health Monitoring System ◽  
Cable Stayed Bridge

Intelligent Health Monitoring System for a Railway Cable-Stayed Bridge

2010 ◽  
Vol 148-149 ◽  
pp. 1390-1393
Author(s):  
De Shan Shan ◽  
Peng Yan ◽  
Zhen Hua Wang
Keyword(s):  
Information Processing ◽  
Monitoring System ◽  
Health Monitoring ◽  
Signal Transmission ◽  
Structural Safety ◽  
Signal Acquisition ◽  
Processing Technologies ◽  
Health Monitoring System ◽  
Cable Stayed Bridge ◽  
Long Span

Intelligent health monitoring system of the long-span railway cable-stayed bridge requires the comprehensive knowledge of instrumentation, analytical and information processing technologies with the knowledge and experiences in design, construction, operation and maintenance of railway cable-stayed bridge for long-term monitoring the performance throughout its lifecycle. It is necessary to perform sensor-based structural monitoring for identifying the bridge conditions in order to assure the structural safety and to evaluate the operational performance. The considerations for deploying a proper monitoring system are appropriate sensor instrumentation, robust signal acquisition, reliable signal processing, and intelligent signal and information processing. The experience on developing an autonomous monitoring system in the one certain railway cable-stayed bridge newly constructed is introduced in this paper. Sensor and hardware instrumentation, signal transmission, signal acquisition and analysis are schematically described mainly. Experience through this work will be worthwhile lessons for other similar efforts.

scholarly journals Overview of integrated health monitoring system installed on cable-stayed bridge and preliminary analysis of results

2021 ◽  
Vol 73 (06) ◽  
pp. 591-604
Keyword(s):  
Monitoring System ◽  
Data Storage ◽  
Health Monitoring ◽  
Yangtze River ◽  
Structural Damage ◽  
Monitoring Data ◽  
Extreme Condition ◽  
Health Monitoring System ◽  
Cable Stayed Bridge ◽  
Integrated Health

The Junshan Yangtze River Bridge, built in Wuhan, China in 2001, is a steel box girder cable-stayed bridge with a main span of 460m. Due to decades of service, the bridge suffered gradual degradation and some damage. Structural health monitoring has attracted worldwide attention due to its capacity of monitoring structural damage, assisting maintenance and management, and ensuring safe operation of bridges. To monitor the performance status of bridges and generate a timely safety alarm, an integrated health monitoring system has been designed and implemented on bridges. This paper provides a thorough account of the monitoring system used at the Junshan Yangtze River Bridge. It mainly focuses on the selection of monitoring variables and arrangement of sensor points, the data collection and transmission system, the data storage and management strategy, and the user interface system. All kinds of monitoring data collected under daily operation, such as vehicle load, deflection, displacement, and cable tension, are analysed. Monitoring data for an extreme condition, which involves two heavy trucks of 178 tons moving across the bridge, are also analysed. The results indicate that the monitoring system works well and that some local welded joints may experience fatigue damage.

Structural Health Monitoring System for The Queensferry Crossing

2018 ◽  
Author(s):  
Torben B. Bangsgaard ◽  
Henrik Gjelstrup ◽  
Andrew Scullion ◽  
Paul Faulkner
Keyword(s):  
Structural Health Monitoring ◽  
Monitoring System ◽  
Health Monitoring ◽  
Asset Management ◽  
Data Warehousing ◽  
Data Driven ◽  
Health Monitoring System ◽  
Structural Health ◽  
Cable Stayed Bridge ◽  
Structural Health Monitoring System

The Structural Health Monitoring System (SHMS) for the new Queensferry Crossing cable stayed bridge, Scotland include more than 1500 sensors combined to yield a world leading SHMS for data driven asset management making use of the latests technologies in data processesing and data warehousing.

A New Health Monitoring System for Cable-Stayed Bridges II: Applications

2011 ◽  
Vol 378-379 ◽  
pp. 328-331
Author(s):  
Ling Luo ◽  
Hong Luo ◽  
Bai Song Du
Keyword(s):  
Monitoring System ◽  
Health Monitoring ◽  
Reference Value ◽  
Companion Paper ◽  
Monitoring Systems ◽  
Health Monitoring System ◽  
Bridge Health Monitoring ◽  
Cable Stayed Bridge ◽  
Four Levels ◽  
Cable Stayed Bridges

In the companion paper, a new health monitoring system with five sub-systems is proposed for cable-stayed bridges. In this paper, for a health monitoring system of the cable-stayed bridge, it is classified four levels as excellent, good, fair, and poor base on the function of the system at the first time. The monitoring systems of the second Wujiang Bridge, a cable-stayed bridge with a low tower and a high tower, and the Shibangou Yangtze River Bridge, a cable-stayed bridge with regular double towers, are employed as two examples to narrate the determination of the monitoring parameters, monitoring contents and methods, the principles of the positions of measuring points, and evaluation of the system grade. The health monitoring system for the cable-stayed bridge sets up a good example for other types of bridges and has a reference value for the development of the bridge health monitoring systems.

Research on Temperature Field and Temperature Stress of Large Span Concrete Cable-Stayed Bridge Girder

2012 ◽  
Vol 178-181 ◽  
pp. 2075-2080 ◽  
Author(s):  
Peng Yan
Keyword(s):  
Temperature Field ◽  
Monitoring System ◽  
Temperature Stress ◽  
Health Monitoring ◽  
Measured Data ◽  
Health Monitoring System ◽  
Large Span ◽  
Cable Stayed Bridge ◽  
Bridge Girder ◽  
Temperature Action

Bridge structure is influenced by external temperature inevitably, and hyper static structure, especially cable-stayed bridge, has complicated stress response on the effect of temperature action, which greatly increases the difficulty of structure stress analysis. For the sake of research on the influence degree of temperature action to large span concrete cable-stayed bridge girder, take Luzhou Taian Yangtze River Bridge as an example, the temperature field and temperature stress of girder are analyzed using measured data from health monitoring system. The results of finite element simulation experiment demonstrate that, the influence of longitudinal temperature distribution must be considered in large span bridge design, and the measured data of bridge health monitoring system installed are accurate.

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