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Title: PENDULUM TESTS OF BREAKAWAY WOOD SIGN SUPPORTS USING CRUSHABLE BUMPERS
Accession Number: 00196619
Record Type: Component
Availability: Find a library where document is available Abstract: Ten pendulum impact tests of breakaway wood sign supports were conducted to evaluate safety performance. Two sizes of timber supports were tested per AASHTO impact conditions, i.e., 1020 kg (2250 lb) mass and 32 km/h (20 mph). Two crushable pendulum nose designs were also used to evaluate relative performance. The findings indicate that both support sizes can be modified by drilled holes to effect structures that safely break away with a pendulum mass momentum change of less than 3.36 kM's (750 lb's). The findings also indicate that the crushable nose design has an imporant effect on the breakaway performance. Sequential photographs illustrate that the fracture mechanism is similar for the ten tests. /Author/
Supplemental Notes: Publication of this paper sponsored by Committee on Safety Appurtenances. 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.
Monograph Title: Monograph Accession #: 01411518
Report/Paper Numbers: HS-026 748
Authors: Kimball, C EMichie, J DPagination: pp 33-38
Publication Date: 1978
Serial: Conference:
57th Annual Meeting of the Transportation Research Board
Location:
Washington District of Columbia, United States ISBN: 0309028248
Media Type: Digital/other
Features: Figures
(5)
; Photos; References
(9)
; Tables
(3)
TRT Terms: Old TRIS Terms: Subject Areas: Design; Highways; Safety and Human Factors
Files: TRIS, TRB
Created Date: Aug 28 1979 12:00AM
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