Proposition of Estimation Method for Repairing the Roughness in Expansion Joints of Expressway Bridges

Abstract:

When a truck passes on the expansion joint of an expressway bridge, the tire spring vibration of the truck is generated by short wavelength road roughness. Moreover, environmental vibration problems, such as infrasound and ground vibration, occur as a result of the impact force of the tire spring vibration. Then, IRI_10 analysis using a quarter car model was carried out using short wavelength road roughness in the expansion joints of Japanese expressways. This study proposed the IRI_10 value '7 mm/m' and an estimation method for repairing short wavelength road roughness.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 1742-1747
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.1742
• Online since: December 2012
• Authors: Fukada Saiji, Matsumoto Takeya, Aiba Tadakazu, Okada Hiroyuki, Momiyama Yoshiyuki
• Keywords: Expansion Joint, IRI, Road Roughness, Wavelength

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