Development of a Low-Cost, Energy-Absorbing Bridge Rail

Thiele, Jeffrey C.; Sicking, Dean L.; Bielenberg, Robert W.; Reid, John D.; Faller, Ronald K.; Lechtenberg, Karla A.; Rosenbaugh, Scott K.; Midwest Roadside Safety Facility

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Development of a Low-Cost, Energy-Absorbing Bridge Rail

2010-08-11
By Thiele, Jeffrey C. ; Sicking, Dean L. ; Bielenberg, Robert W. ; ...

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English

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Creators:

Thiele, Jeffrey C. ; Sicking, Dean L. ; Bielenberg, Robert W. ; Reid, John D. ; Faller, Ronald K. ; ... More +

Thiele, Jeffrey C. ; Sicking, Dean L. ; Bielenberg, Robert W. ; Reid, John D. ; Faller, Ronald K. ; Lechtenberg, Karla A. ; Rosenbaugh, Scott K. Less -
Corporate Creators:

Midwest Roadside Safety Facility
Corporate Contributors:

Midwest States Regional Pooled Fund Program ; Nebraska. Department of Roads

Midwest States Regional Pooled Fund Program ; Nebraska. Department of Roads Less -
Subject/TRT Terms:

[+]

Approach Lanes Approach Transition Bridge Rail Bridge Railings Bridges And Other Structures Compliance Test Crash Test Energy Absorbing Materials Guardrails Highway Bridges Highway Safety I85: Safety Devices Used In Transport Infrastructure Impact Tests Longitudinal Barrier MASH Posts Reaction Rails Roadside Appurtenances Safety And Human Factors
Publication/ Report Number:

TRP-03-226-10
Resource Type:

Tech Report
Geographical Coverage:

United States ; Nebraska

United States ; Nebraska Less -
TRIS Online Accession Number:

1207863
Edition:

Final Report
Corporate Publisher:

Midwest Roadside Safety Facility ; University of Nebraska--Lincoln

Midwest Roadside Safety Facility ; University of Nebraska--Lincoln Less -
Abstract:

A new, low-cost bridge rail was designed to be compatible with the Midwest Guardrail System (MGS) such that an approach transition would not be required between the two barriers. It was desired that the system minimize bridge deck and rail costs. Several concepts for an energy-absorbing bridge post were developed and tested. These concepts included strong-post systems designed with plastic hinges and weak-post systems designed to bend near the attachment to the bridge deck. The final post concept incorporated S3x5.7 (S76x8.5) steel sections which were designed to bend at their bases. Each post was housed in a socket placed at the vertical edge of the deck and anchored to the deck with one through-deck bolt. A W-beam section was used as the rail element and was attached to the posts with a bolt that was designed to break during an impact event. Two full-scale crash tests were performed according to the Test Level 3 impact conditions provided in the Manual for Assessing Safety Hardware (MASH), in which the system successfully met all safety performance criteria. The dynamic deflection of the new bridge rail and BARRIER VII modeling demonstrated that the new bridge rail would not require a transition when used with the MGS.
Format:

PDF
Funding:

SPR-3(017) and TPF-5(193)
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6b15608b6b33bc1669b4b6715ee3cc57c25d80e4d3161c1044b3c429518dd8c0
Download URL:

https://rosap.ntl.bts.gov/view/dot/39290/dot_39290_DS1.pdf
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Development of a Low-Cost, Energy-Absorbing Bridge Rail

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