01114232

Component

http://www.trb.org/Publications/Blurbs/160401.aspx

Scour and other natural hazards have the potential to undermine the structural stability of highway bridges and the piers that support them. This has led to bridge collapse in the past, and significant efforts have been undertaken to address the potential danger of scour and other hazards to pier stability. To effectively manage these assets, reliable systems for measuring and reporting structural conditions are required. However, there remains a lack of reliable, cost-effective, long-term monitoring devices capable of determining the structural stability of bridge piers. This paper will present the results of efforts to utilize an array of low-cost tilt sensors, deployed on both the pier and the superstructure of the bridge, to monitor long-term structural behavior. The sensors are deployed in an array so that multiple sensor outputs can be integrated to increase signal to noise ratios, eliminate erroneous readings, and provide systematic sensor redundancy. Additionally, using increased numbers of sensors allow for the application of more-advanced signal processing schemes including correlation algorithms developed to measure and better understand structural behavior. The application of such monitoring devices and how they integrate with overall bridge management strategies will be discussed.

01114213

IBSMC08-041

English

pp 238-248

2008-10

Transportation Research Circular

Tenth International Conference on Bridge and Structure Management

Web

Figures (4) ; Photos (6) ; References (4)

Asset management; Bridge piers; Highway bridges; Monitoring; Scour; Sensors

Bridge management; Structural behavior; Structural stability

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

TRIS, TRB

Oct 31 2008 9:05AM

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