The effects on a bridge superstructure of dynamic loads generated by long wavelength roughness in road surfaces

The effects of dynamic loads on bridges generated by axle loads from trucks are well known. The influence of the roughness of the approaches to the bridges has a significant effect on the development of the dynamic loads that is not well appreciated. If Long Wavelength Roughness (LWR) is present in the road surface it can excite suspension systems, yet its presence cannot be detected using current road roughness assessment techniques. An examination of the impact of the repeated dynamic loads on a reinforced concrete bridge as the result of LWR shows additional deflection and excitation close to the resonant frequency of the bridge.

• Authors:
  • McManus, K J
  • Lu, G
  • Ruan, D
• Conference:
  • International Road Federation World Meeting, 14th, 2001, Paris, France
• Publication Date: 2001

Language

• English

Media Info

• Pagination: 12p
• Monograph Title: IRF Paris 2001

Subject/Index Terms

• TRT Terms: Axle loads; Bearing capacity; Bridge superstructures; Deflection; Heavy vehicles; Roughness; Surface course (Pavements); Trucks; Trucks by number of axles
• Uncontrolled Terms: Bridge-vehicle interaction
• ATRI Terms: Axle configuration; Axle load; Bridge loads; Bridge superstructure; Deflection; Heavy vehicle; Load damage relationship; Road surface properties; Roughness; Truck; Vehicle bridge interaction
• Subject Areas: Bridges and other structures; Motor Carriers;

Filing Info

• Accession Number: 01392159
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 23 2012 6:53AM