Chapter
May 14, 2014
Damage Localization Method Using Vertical Support Reaction Data for Real-World Continuous Bridge
Publication: Sustainable Development of Critical Infrastructure
Abstract
Damage localization of real-world continuous bridges with original random uncertainty is studied in this paper. By employing influence line analysis, an index termed as "Difference Index of Influence Line for Vertical Support Reaction (DIILSR)" has been presented. A damage localization method based on DIILSR has been established. A significant attraction of this method is that a comparatively small quantity of measurements is required because the number of bridge bearings is usually small. Damage position can be detected by comparing two DIILSR graphs before and after damage. If the slopes of two attachment lines between one point (x2=x' + m) and its two adjacent points change, it can be known that damage occurs within the region [x', x' + m] or [l - x' - m, l - x']. The effectiveness of the proposed method is demonstrated by a numerical simulation performed on a bridge with multiple damages.
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© 2014 American Society of Civil Engineers.
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Published online: May 14, 2014
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ASCE Technical Topics:
- Bridge engineering
- Bridges
- Bridges (by type)
- Comparative studies
- Continuous bridges
- Continuum mechanics
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Methodology (by type)
- Models (by type)
- Motion (dynamics)
- Numerical methods
- Numerical models
- Research methods (by type)
- Slopes
- Solid mechanics
- Span bridges
- Structural engineering
- Uncertainty principles
Authors
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School of Civil Engineering, Shandong Jianzhu University, Fengming Road, Jinan, Shandong Province, 250101, China. E-mail: [email protected]
Department of Civil Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China. E-mail: [email protected]
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