Field Test and Analysis on Impact Factor Spectrum for a Continuous Bridge under Random Traffic Flow

Wan Shui Han; Tao Wang; Su Jing Yuan

doi:10.4028/www.scientific.net/AMR.250-253.1226

Paper Titles

The Study of the Railway Tunnel on the Area of Wall Rock Pre-Injection
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Construction Techniques of Deep Diaphragm Wall in the Yellow River-Crossing Project in South-to-North Water Transfer
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Quality Monitoring for Waterproof and Drainage of Loess Road Tunnel
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Large Deflection of Cantilever Beam with Uniformly Distributed Load Using Homotopy Analysis Method
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Field Test and Analysis on Impact Factor Spectrum for a Continuous Bridge under Random Traffic Flow
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Large Deflection of Tip Loaded Beam with Differential Transformation Method
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Study on Geomorphologic Spatial Information Mining and Application
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Study on Simulation and Stability Analysis of Subway Station Excavation from the Vertical Construction Well
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Structural Damage Detection Using Curvature Mode Difference Curve
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 250-253Field Test and Analysis on Impact Factor Spectrum...

Field Test and Analysis on Impact Factor Spectrum for a Continuous Bridge under Random Traffic Flow

Abstract:

Field test and analysis were carried out for dynamic responses on a continuous bridge under open traffic. The inspection, testing and analysis for the tested bridge mainly consist of the measurement of pavement roughness and analysis on power spectral density, the testing and analysis on natural vibration characteristics, the observation of traffic loads under open traffic and the corresponding measurements of dynamic displacement and acceleration on bridge. To determine impact factors in terms of measured dynamic displacement responses, low pass Butterworth filter is used for filtering the dynamic part of measured dynamic displacement and the static extreme values are reserved. Finally, the relationship between impact factors and vehicle weight, vehicle speed is studied. It was found that impact factor tends to decrease with increasing vehicle weight, and integrally speaking, the impact factor increases gradually as the vehicle speed is increased within a wide range.