Perforated Tension Fuse Plate for Breakaway Roadside Signs

Hirsch, T. J.; Fairbanks, William L.; Arnold, Althea G.

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Perforated Tension Fuse Plate for Breakaway Roadside Signs

1984-10-01
By Hirsch, T. J. ; Fairbanks, William L. ; Arnold, Althea G.

File Language:

English

Details

Creators:

Hirsch, T. J. ; Fairbanks, William L. ; Arnold, Althea G.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA/TX-85/43+343-3F
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Final Report: September 1982 - October 1984
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

One of the objectives of this research study was to improve the design details of breakaway roadside signs in order to reduce their maintenance cost. During the past few years district maintenance engineers have reported large numbers of breakaway signs flopping or falling over in windstorms or just after a long period of service. In most cases the bolted, slotted friction fuse plate became loose and gave way. The friction fuse plate was modified to make it a perforated tension fuse plate. The new tension fuse plate does not rely on bolt pretension and friction to resist wind loads. The critical section of the fuse plate is perforated with four drilled holes to weaken it to break in tension when an errant vehicle impacts the sign. Laboratory static tests were conducted to develop the design, and a full-scale vehicle crash test was conducted to verify it.
Format:

PDF
Funding:

2-18-83-343
Download URL:

https://rosap.ntl.bts.gov/view/dot/85178/dot_85178_DS1.pdf
File Type:

[PDF - 3.34 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:b1d83aa82d680e4e172d2373d1205aef0b85dd8cca916c5359a6c56cbb220f1403633c03e1c255dd2e152f98dfb24e664c5391b9702f4f5cb2077220a501f3db

File Language:

English

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