Improved models of cable-to-post attachments for high-tension cable barriers.

Stolle, Cody S.; Reid, John D.; Bielenberg, Robert W.; Midwest Roadside Safety Facility

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Improved models of cable-to-post attachments for high-tension cable barriers.

2012-05-01
By Stolle, Cody S. ; Reid, John D. ; Bielenberg, Robert W.

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English

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Creators:

Stolle, Cody S. ; Reid, John D. ; Bielenberg, Robert W.

Stolle, Cody S. ; Reid, John D. ; Bielenberg, Robert W. Less -
Corporate Creators:

Midwest Roadside Safety Facility
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Cables Impact Tests Median Barriers Median Strips Resistance Tests Roads--Guard Fences--Testing Roadside Structures Simulation Traffic Accidents--Research Traffic Crashes
Publication/ Report Number:

TRP-03-267-1212
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final report.
Corporate Publisher:

Nebraska Transportation Center
Abstract:

Computer simulation models were developed to analyze and evaluate a new cable-to-post attachment for high-tension cable

barriers. The models replicated the performance of a keyway bolt currently used in the design of a high-tension cable

median barrier being developed at the Midwest Roadside Safety Facility. Component tests of the keyway bolts were

simulated and compared to the component test results. Accurate friction, fracture strain, and stress-strain material properties

were determined for a solid element model of the keyway bolt by applying actual load curve measured from the test to a

simulated pull cable. By simulating the material properties of the solid element keyway bolt in bending, torsion, and tension

of a rod, load curves were developed for a simplified beam element model of the keyway bolt as well.

When material properties were finalized, the solid and beam element models of the keyway bolt were inserted in bogie test

models and simulated again. By analyzing the bogie testing results, it was determined that due to the very small size of the

keyway bolt and potential contact difficulties, solid element models of the keyway bolt may be impractical for full-scale

simulation purposes. However, the beam element models were determined to be advantageous and had a very small

computational cost in comparison.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:d66109802ada46f0ed4776484a0cbdbe2665b04da95c42dde08bf85350107994
Download URL:

https://rosap.ntl.bts.gov/view/dot/25448/dot_25448_DS1.pdf
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Improved models of cable-to-post attachments for high-tension cable barriers.

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