Development of a Retrofit, Low-Deflection, Temporary Concrete Barrier System

Bielenberg, Robert W.; Faller, Ronald K.; Quinn, Tyson E.; Sicking, Dean L.; Reid, John D.; Midwest Roadside Safety Facility; University of Nebraska--Lincoln; Midwest States Regional Pooled Fund Program

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Development of a Retrofit, Low-Deflection, Temporary Concrete Barrier System

2014-03-31
By Bielenberg, Robert W. ; Faller, Ronald K. ; Quinn, Tyson E. ; ...

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English

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Creators:

Bielenberg, Robert W. ; Faller, Ronald K. ; Quinn, Tyson E. ; Sicking, Dean L. ; Reid, John D.

Bielenberg, Robert W. ; Faller, Ronald K. ; Quinn, Tyson E. ; Sicking, Dean L. ; Reid, John D. Less -
Corporate Creators:

Midwest Roadside Safety Facility ; University of Nebraska--Lincoln ; Midwest States Regional Pooled Fund Program

Midwest Roadside Safety Facility ; University of Nebraska--Lincoln ; Midwest States Regional Pooled Fund Program Less -
Corporate Contributors:

Wisconsin. Dept. of Transportation. Bureau of Project Development ; Nebraska. Dept. of Roads

Wisconsin. Dept. of Transportation. Bureau of Project Development ; Nebraska. Dept. of Roads Less -
Subject/TRT Terms:

[+]

Acceptance Tests Compliance Test Crash Tests Deflection Highway Safety Impact Tests Portland Cement Concrete Roadside Appurtenances Temporary Barriers Temporary Concrete Barrier
Publication/ Report Number:

TRP-03-295-14
Resource Type:

Tech Report
Geographical Coverage:

United States ; Wisconsin ; Nebraska

United States ; Wisconsin ; Nebraska Less -
Edition:

Final Report
Corporate Publisher:

Midwest Roadside Safety Facility ; University of Nebraska--Lincoln

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

The objective of this research effort was to develop a stiffening mechanism for use in reducing the deflection of temporary concrete barrier (TCB) installations without requiring anchorage of the barrier segments to the road surface. The joint- stiffening mechanism was developed for use with the Midwest Pooled Fund States’ 12.5-ft (3.8-m) long, F-shape, temporary concrete barrier. The research effort included development and analysis of mechanisms for limiting deflections through engineering analysis and LS-DYNA computer simulation. Following analysis of the candidate designs, an initial prototype design was full-scale crash tested. Following the first full-scale crash test, the low-deflection TCB system was modified to further reduce deflections and full-scale crash tested a second time. The final version of the low-deflection TCB system was capable of reducing dynamic barrier deflections almost 50% over free-standing TCB installations while still safely redirecting errant vehicles. LS-DYNA simulations of a pickup truck striking the low-deflection TCB system at the 85th percentile impact severity were conducted to estimate the deflection of the barrier. The predicted deflection was then used to set placement criteria for non-critical installation
Format:

PDF
Funding:

TPF-5(193) Suppl. #15
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:9c37c8348a27deb53d5abf4e2e4fa7fd382cd1059f991ebc7f8927f83bd06a31
Download URL:

https://rosap.ntl.bts.gov/view/dot/39714/dot_39714_DS1.pdf
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Development of a Retrofit, Low-Deflection, Temporary Concrete Barrier System

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