EFFECTS OF VEHICLE BRAKING ON THE DYNAMIC LOADING OF BRIDGES

An experimental and analytical study of the effect of vehicle braking on dynamic loading of single span highway bridges has been completed. Static and dynamic tests were conducted to measure the tyre and suspension characteristics of a light two- axle truck which was later used as the load unit for dynamic tests on a bridge. The dynamic properties of the truck were determined from a numerical simulation of these vehicle dynamic tests. Bridge dynamic bending strains and vehicle acceleration and response were measured for bridge test runs with the vehicle travelling at constant speed and with the vehicle undergoing braking. Corresponding computer simulations were made, based on the measured system properties, and the results compared. (Author/TRRL)

• Corporate Authors:

  University of New South Wales

  Gate 9, High Street
  Kensington, New South Wales  Australia  2052
• Authors:
  • Mulcahy, N L
  • Pulmano, V A
  • Traill-nash, R W
• Publication Date: 1980-3

Media Info

• Features: Figures; References; Tables;
• Pagination: 87 p.

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Bending; Bending stress; Braking; Bridges; Deformation; Delivery vehicles; Digital computers; Dynamic loads; Dynamic tests; Dynamics; Highway bridges; Light trucks; Repeated loads; Simulation; Speed; Stresses; Suspension systems; Tests; Tires; Traffic loads; Trucks; Vehicle dynamics; Vehicles
• ITRD Terms: 5405: Acceleration; 1874: Braking; 3455: Bridge; 5595: Deformation; 8673: Digital computer; 5473: Dynamics; 1236: Lorry; 5588: Repetitive loading; 9103: Simulation; 5408: Speed; 1329: Suspension (veh); 6255: Test; 1381: Tyre; 1255: Vehicle
• Subject Areas: Bridges and other structures; Design; Freight Transportation; Highways; Motor Carriers; Vehicles and Equipment; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00324654
• Record Type: Publication
• Source Agency: ARRB
• Report/Paper Numbers: UNICIV Rpt. R-191 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Sep 16 1981 12:00AM