Development of a Guide for Prioritization of Railway Bridges for Repair and Replacement

Rakoczy, Anna M.; Nowak, Andrzej S.; University of Nebraska--Lincoln. Dept. of Civil Engineering

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Development of a Guide for Prioritization of Railway Bridges for Repair and Replacement

2013-09-01
By Rakoczy, Anna M. ; Nowak, Andrzej S.

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Details:

Creators:

Rakoczy, Anna M. ; Nowak, Andrzej S.

Rakoczy, Anna M. ; Nowak, Andrzej S. Less -
Corporate Creators:

University of Nebraska--Lincoln. Dept. of Civil Engineering
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Bolted Connections Bridges And Other Structures Decision Making Evaluation And Assessment FEM Analysis Finite Element Method I61: Equipment And Maintenance Methods Maintenance Maintenance And Preservation Railroad Bridges Railroads Railway Bridge Rehabilitation (Maintenance) Research Hub Structural Analysis Structural Connection
Publication/ Report Number:

MATC-UNL: #052 ; 25-1121-0003-052

MATC-UNL: #052 ; 25-1121-0003-052 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01506251
Edition:

Final Report
Corporate Publisher:

Mid-America Transportation Center
Abstract:

The objective of this study was to develop evaluation bases for the repair, rehabilitation, and replacement of existing railway bridges. Considering the importance of bridges to the railway network, the research involved the review and analysis of major factors that influence structural performance, e.g., degree of corrosion, loss of material (section loss, holes), fatigue problems, and loose connections. In particular, the research focused on connections, and their importance relative to the evaluation of bridge performance. The relationship between various conditions and the ability to perform the required function (i.e., carry a freight train) was established in the form of maximum capacity. Sensitivity analysis was performed to establish the relationship between load and resistance factors. Results were presented in the form of graphs and tables. The outcomes of this study served as a basis for the development of a decision-making spread sheet. This report provides research documentation and offers a tool for bridge owners for the prioritization of structures for repair/rehabilitation or replacement. The study involved the nonlinear finite element method (FEM) analysis of stringer-tofloorbeam connections, the development of the resistance capacity of typical bridge connections, and the calculation of reduced capacity based on deterioration and Tech Report conditions. The findings and final conclusions of this research could serve as a basis for the development of more accurate provisions for the evaluation of railway bridges.
Format:

PDF
Funding:

MATC TRB RiP No. 28686
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

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urn:sha256:9d56c05205be4833ef76d59a630fe656db9b4eb68a53f7a49e76f307e2f1c6c6
Download URL:

https://rosap.ntl.bts.gov/view/dot/26910/dot_26910_DS1.pdf
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Development of a Guide for Prioritization of Railway Bridges for Repair and Replacement

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