Quantitative Method for Assessing the Level of Deterioration of round Wood Guardrail Posts

This paper presents results of a study that developed a procedure for measuring the amount of deterioration damage of round wood guardrail posts. The guardrail posts used in the study were extracted from damaged guardrail installations in Ohio. A resistograph device was used to measure the resistanc...

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Bibliographic Details
Published in:Transportation research record 2015-01, Vol.2521 (1), p.86-95
Main Authors: Plaxico, Chuck, Ray, Malcolm H., Ray, Archie, Johnson, T. Olaf
Format: Article
Language:English
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Summary:This paper presents results of a study that developed a procedure for measuring the amount of deterioration damage of round wood guardrail posts. The guardrail posts used in the study were extracted from damaged guardrail installations in Ohio. A resistograph device was used to measure the resistance of a 1 16 in. drilling needle passing through the cross section of the guardrail posts. The deterioration damage levels of the posts ranged from severe to essentially undamaged. A data processing procedure was developed to convert the resistograph data into a quantitative damage score. Physical impact tests were then performed to correlate the damage score to the dynamic strength properties of the posts.
ISSN:0361-1981
2169-4052
DOI:10.3141/2521-09