MECHANICAL DAMPING SYSTEM FOR MAST ARM TRAFFIC SIGNAL STRUCTURES

Failures of mast arm traffic signal structures have resulted from wind-induced vibrations. This paper describes the development and testing of several different damping devices for cantilevered mast arm structures. Prototype damping devices were tested on a 11.3 m mast arm constructed in the Structures Laboratory at the University of Florida. Successful devices were then field tested on several different lengths of mast arms (11.0 m to 21.4 m) to determine the effectiveness over the full range of installations. The selected device has the potential to limit the magnitude and duration of vibrations resulting in an increase in the design life of these structures.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784404216
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Cook, R A
  • Bloomquist, D
  • Kalajian, M A
• Conference:
  • 1999 New Orleans Structures Congress
  • Location: New Orleans, Louisiana
  • Date: 1999-4-18 to 1999-4-21
• Publication Date: 1999

Language

• English

Media Info

• Features: Figures;
• Pagination: p. 1099-02

Subject/Index Terms

• TRT Terms: Cantilevers; Damping (Engineering); Failure; Mechanical engineering; Structures; Support poles; Traffic signals; Vibration; Wind
• Uncontrolled Terms: Mast arm
• Subject Areas: Bridges and other structures; Design; Highways; Operations and Traffic Management; I24: Design of Bridges and Retaining Walls; I73: Traffic Control;

Filing Info

• Accession Number: 00778404
• Record Type: Publication
• ISBN: 0784404216
• Files: TRIS
• Created Date: Nov 15 1999 12:00AM