Fatigue failure and cracking in high mast poles.

Goyal, Raka; Dhonde, Hemant B.; Dawood, Mina; University of Houston. Department of Civil and Environmental Engineering

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Fatigue failure and cracking in high mast poles.

2012-03-01
By Goyal, Raka ; Dhonde, Hemant B. ; Dawood, Mina

[PDF-2.71 MB]

English

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Details:

Alternative Title:

Project title: Fatigue failure and cracking in high mast poles
Creators:

Goyal, Raka ; Dhonde, Hemant B. ; Dawood, Mina

Goyal, Raka ; Dhonde, Hemant B. ; Dawood, Mina Less -
Corporate Creators:

University of Houston. Department of Civil and Environmental Engineering
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Cracking Fatigue Cracking Lighting Columns Pavement Cracking Roads--Lighting--Supports--Cracking--Texas Roads--Lighting--Supports--Fatigue--Texas Street Lighting
Publication/ Report Number:

FHWA/TX-12/0-6650-1 ; 0-6650-1

FHWA/TX-12/0-6650-1 ; 0-6650-1 Less -
Resource Type:

Tech Report
Geographical Coverage:

Texas
Edition:

Technical report; Sept. 2010¿Aug. 2011.
Corporate Publisher:

University of Houston. Dept. of Civil and Environmental Engineering
Abstract:

This report presents the findings of a comprehensive research project to investigate the fatigue

cracking and failure of galvanized high mast illumination poles (HMIP). Ultrasonic inspection of

poles throughout the state has revealed the presence of weld toe cracks at the shaft-to-base-plate

connections of some galvanized poles that the Texas Department of Transportation (TxDOT)

owns.

However, the effect of these galvanization-induced cracks on the fatigue life of the poles has not

been clearly defined. The first phase of this research involved extensive review of published and

unpublished data, to identify key factors that contribute to galvanization-induced cracking. Best

fabrication practices to minimize such cracking are recommended. In the second phase, a

comprehensive reliability analysis of several TxDOT pole configurations was conducted for

different regions in Texas to predict the fatigue lives of the cracked poles. Critical pole

configurations and locations are identified to facilitate cost-effective decisions related to

inspection, repair, and replacement of poles.
Format:

PDF
Funding:

0-6650
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:8e8db11a33b8ef1b47d7d8819cf5ab0429ba8c3d75d8e0b4da9ba74d428315a5
Download URL:

https://rosap.ntl.bts.gov/view/dot/24201/dot_24201_DS1.pdf
File Type:

No Additional Files

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Fatigue failure and cracking in high mast poles.

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