Repair of Skewed Steel Bridges Damaged by Distortion-Induced Fatigue

Bennett, Caroline; Yu, Danqing; Matamoros, Adolfo; Chen, Yaqing; Rolfe, Stan

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Repair of Skewed Steel Bridges Damaged by Distortion-Induced Fatigue

2014-12-01
By Bennett, Caroline ; Yu, Danqing ; Matamoros, Adolfo

File Language:

English

Details

Creators:

Bennett, Caroline ; Yu, Danqing ; Matamoros, Adolfo ; Chen, Yaqing ; Rolfe, Stan
Corporate Creators:

Mid-America Transportation Center ; University of Nebraska--Lincoln ; University of Kansas
Corporate Contributors:

United States. Department of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:
Publication/ Report Number:

25-1121-0003-246
Resource Type:

Tech Report
Geographical Coverage:

United States;Nebraska
Edition:

Final Report
Corporate Publisher:

University of Nebraska--Lincoln ; Mid-America Transportation Center
Abstract:

This study was aimed at assessing the performance of the newly-developed angles-with-plate retrofit for repairing distortion-induced fatigue in skewed girder-to-crossframe connections. Two physical tests were performed on skewed girder-crossframe assemblies, in which distortion-induced fatigue cracks were generated. One specimen was skewed 20- deg., and the other was skewed 40-deg. The angles-with-plate retrofit was applied in both set-ups, and the crack propagation rates were compared before and after retrofitting. It was found that the angles-with-plate retrofit was very effective in significantly reducing crack propagation in both of the skewed specimens. A series of computer simulations were performed in which the specimens were modeled in the uncracked, cracked, and retrofitted configurations. The computer simulation results agreed well with the experimental findings, showing that the retrofit successfully reduced stress demands in the connection details.
Format:

PDF
Funding:

34772
Download URL:

https://rosap.ntl.bts.gov/view/dot/36642/dot_36642_DS1.pdf
File Type:

[PDF - 7.45 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha-512:5cbb4a9932b85cc55f4a89000f9323f50486549030be65324f2378cf8fb9972231cd605daddafae0ac0d9b61d6b03c1b88e338a3b1913b4b3af5fc6a495563e6

File Language:

English

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