DEVELOPMENT AND TEST OF LOW IMPACT RESISTANCE STRUCTURES. VOLUME I. STRUCTURAL AND DYNAMIC ASPECTS

A breakaway pole has been designed and developed and tested to satisfy the requirements for a frangible light support structure. This pole consists of four tapered sections and one straight section assembled to form a unitary structure approximately 20 feet high. The basic structure is shown by analysis to satisfy the requirements for survival in a 75 mph wind with 1/2 inch of radial ice, and a 100 mph wind with no radial ice, with factors of safety of 4.3 and 3.2 respectively. Deflection under a 45 mph wind is 0.6 of the allowable value. Tests of the joints in the pole were performed to optimize the pole performance. (Modified author abstract)

  • Supplemental Notes:
    • See also Volume 2, AD-781 859.
  • Corporate Authors:

    ASE, Incorporated

    5090 Central Highway
    Pennsauken, NJ  USA  08109
  • Authors:
    • Harralson, R W
    • Laible, C W
    • Lazarin, J
  • Publication Date: 1974-2

Media Info

  • Pagination: 164 p.

Filing Info

  • Accession Number: 00057967
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Phase 1 Final Rpt.
  • Contract Numbers: DOT-FA72WA-3043
  • Files: NTIS
  • Created Date: Nov 20 1974 12:00AM