REDUCTION OF WIND FORCES ON HIGH-SIDED VEHICLES ON MOTORWAY BRIDGES USING BARRIERS OF UNIFORM DENSITY

Wind-tunnel model tests were made at the request of the transport and Road Research Laboratory, department of the environment, to assess the possible mitigating effects of barriers on the overturning moments exerted by the wind on high-sided vehicles using motorway bridges. Most of the tests were done on porous barriers, at the outer edges of the bridge deck and consisting of horizontal rails with equal vertical spacing; some tests with part of the bridge structure itself forming a non-porous central barrier were included. Preliminary studies were made to confirm that the results of the tests at the scale chosen could be extrapolated to full-scale with reasonable confidence. Similar studies demonstrated that the effects of oblique winds could not, however, be reproduced simply by yawing the model. (A) /TRRL/

• Corporate Authors:

  National Physical Laboratory, England

  Department of Industry, Queens Road
  Teddington, Middlesex,   England 
• Authors:
  • Whitbread, R E
  • Cowdrey, C P
• Publication Date: 0

Language

• English

Media Info

• Features: Figures; References; Tables;

Subject/Index Terms

• TRT Terms: Barriers (Roads); Freeways; Guardrails; Heavy vehicles; Height; Highway bridges; Mathematical models; Overturning; Porosity; Tests; Vehicles; Wind; Wind pressure; Wind resistant design; Wind tunnels; Windbreaks
• Uncontrolled Terms: Barriers; Models
• ITRD Terms: 1057: Air transport network; 6489: Height; 1078: Lock (waterway); 6205: Model (not math); 2752: Motorway; 1637: Overturning (veh); 5938: Porosity; 1686: Safety fence; 6255: Test; 2554: Wind; 2564: Wind barrier
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00142149
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: MAR-SCI-R-149 Monograph
• Files: ITRD, TRIS
• Created Date: Jul 19 1977 12:00AM