WIND LOADS ON LOUVERED SIGNS

RESULTS OF A SERIES OF WIND TUNNEL TESTS OF BOTH STRAIGHT AND CURVED LOUVER SIGN MODELS ARE PRESENTED. A TOTAL OF 16 DIFFERENT MODELS WERE TESTED TO DETERMINE THE EFFECT OF LOUVER ANGLE, LOUVER WIDTH, SIGN HEIGHT TO WIDTH RATIO, AND SIGN MESSAGE ON THE WIND LOADS. DIMENSIONLESS FORCE AND MOMENT COEFFICIENTS ARE PRESENTED GRAPHICALLY, PROVIDING A CONCISE AND CONVENIENT SOURCE OF INFORMATION FOR DETERMINING WIND LOADS ON FULL-SCALE LOUVERED SIGNS. COMPARISONS ARE MADE BETWEEN THE WIND LOADS ON A CONVENTIONAL SIGN AND WIND LOADS ON LOUVERED SIGNS. FOR A GIVEN FRONTAL AREA, TESTS SHOW THAT WIND LOADS ON A LOUVERED SIGN ARE APPROXIMATELY 50 PERCENT LESS THAN THOSE ON A CONVENTIONAL SOLID BACKGROUND SIGN. GROSS ESTIMATES OF LOUVERED SIGN COSTS ARE GIVEN AND COMPARED WITH CONVENTIONAL SIGN COSTS. THE VISIBILITY ASPECT OF A LOUVERED SIGN IS BRIEFLY DISCUSSED. ACTUAL FIELD INSTALLATIONS OF LOUVERED SIGNS ARE SHOWN AND DISCUSSED. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1971/346/346-005.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309019575
• Supplemental Notes:
  • Sponsored by Committee on Traffic Safety Barriers and Sign, Signal and Lighting Supports and presented at the 50th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Ross Jr, Hayes E
• Conference:
  • 50th Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1971-1-18 to 1971-1-22
• Publication Date: 1971

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 47-57
• Monograph Title: Design of Sign Supports and Structures
• Serial:
  • Highway Research Record
  • Issue Number: 346
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aerodynamic force; Coefficients; Engineering moments; Force; Signs; Wind
• Uncontrolled Terms: Louvers; Wind load
• Old TRIS Terms: Moments
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00203581
• Record Type: Publication
• ISBN: 0309019575
• Files: TRIS, TRB
• Created Date: Sep 13 1971 12:00AM