MANAGING DAMAGING DYNAMIC EFFECTS IN SHORT-SPAN BRIDGES

Recent field research has revealed that the dynamic effects in some short-span bridges can be substantially larger than the dynamic load allowance (DLA) prescribed in the Austroads Bridge Design Code whereas in other cases they can be quite small. When the dynamic effects are large, concerns regarding unacceptable stress levels, fatigue and reduced life of bridges arise. This paper presents the findings of a research project aimed at: (a) determining why some bridges are dynamically active and others are not, and (b) developing strategies for maintaining the dynamic response of short-span bridges within acceptable limits. The findings of this investigation are presented in the form of recommendations aimed at managing the dynamic effects in short-span bridges and thus contributing to the long term load carrying capacity of bridges and the productivity of the transport system. (a) For the covering entry of this conference, please see IRRD abstract no. 895164.

• Record URL:
  http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0855884959
• Corporate Authors:

  Austroads

  Suite 2, Level 9, 287 Elizabeth Street
  Sydney, New South Wales  Australia  2000
• Authors:
  • MOLDOVEANU, S
  • Heywood, R J
• Conference:
  • AUSTROADS BRIDGE CONFERENCE, 1997, SYDNEY, NEW SOUTH WALES, AUSTRALIA, VOL 2
• Publication Date: 1997

Language

• English

Media Info

• Features: References;
• Pagination: p. 75-92

Subject/Index Terms

• TRT Terms: Bridges; Concrete; Conferences; Damping (Physics); Field tests; Metal bridges; Steel bridges; Suspension systems; Trucks; Vehicles
• Uncontrolled Terms: Longitudinal profile
• ITRD Terms: 3455: Bridge; 4755: Concrete; 8525: Conference; 5559: Damping; 6226: In situ; 2825: Longitudinal profile; 1236: Lorry; 3465: Metal bridge; 1329: Suspension (veh); 1255: Vehicle
• Subject Areas: Bridges and other structures; Motor Carriers; Vehicles and Equipment;

Filing Info

• Accession Number: 00754060
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0-85588-495-9
• Files: ITRD, ATRI
• Created Date: Oct 27 1998 12:00AM