Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges

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General Information
Solicitation Number: 876
Status: Solicitation withdrawn
Date Posted: May 27, 2004
Last Updated: Apr 28, 2005
Solicitation Expires: May 27, 2005
Partners: CA, IN
Lead Organization: California Department of Transportation
Financial Summary
Commitment Start Year: 2004
Commitment End Year: 2007
100% SP&R Approval: Pending Approval
Commitments Required: $500,000.00
Commitments Received: $310,000.00
Contact Information
Lead Study Contact(s): Nathan Newell
nathan.newell@dot.ca.gov
Organization Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
California Department of Transportation 2004 $80,000.00 Saad El-Azazy Osama Elhamshary Osama_Elhamshary@dot.ca.gov
California Department of Transportation 2005 $80,000.00 Saad El-Azazy Osama Elhamshary Osama_Elhamshary@dot.ca.gov
California Department of Transportation 2006 $90,000.00 Saad El-Azazy Osama Elhamshary Osama_Elhamshary@dot.ca.gov
Indiana Department of Transportation 2005 $20,000.00 Tommy Nantung 765-463-1521 ext 248 tnantung@indot.in.gov
Indiana Department of Transportation 2006 $20,000.00 Tommy Nantung 765-463-1521 ext 248 tnantung@indot.in.gov
Indiana Department of Transportation 2007 $20,000.00 Tommy Nantung 765-463-1521 ext 248 tnantung@indot.in.gov

Background

In the US highway bridge system of 600,000 bridges, about 37% bridges are steel bridges. Including state and county bridges in California, there are about 3000 steel highway bridges. Most of these have been in service for more than 50 years and are close to or have surpassed their expected fatigue life. The proper evaluation of these structures to determine their remaining life is of great importance to the maintenance engineers. To this date, however, Caltrans does not have any approved guidelines to perform the evaluation of steel bridges with or without cracks in California.

There is an urgent need to develop guidelines for the proper evaluation of aging steel bridges to determine their remaining fatigue life. Savings of billions of dollars could be achieved by avoiding unnecessary replacement or by increasing the service life of some of aging steel bridges by retrofitting. Bridge Maintenance and Structure Design throughout the U.S. will benefit from this research.

In recent years, more information on variable-amplitude, fatigue behavior, high-cycles, long-life behavior, actual traffic loading, inspection and assessment of material properties and structural conditions, have been developed worldwide that provide a foundation upon which to build this research. Those new developments together with extensive information accumulated in Caltrans and U.S. make the development of the guidelines possible with the assistance of this research.

Objectives

The objective of the proposed research is to develop guidelines for the evaluation of remaining life of existing steel highway bridges. The guidelines shall provide practical procedures and examples to assess remaining life of steel bridges for purposes of inspection, maintenance and replacement to ensure public safety, mobility and reliability of U.S. aging steel bridges.

Scope of Work

The proposed research will have three major phases: (1) Literature search worldwide; (2) Field and lab investigation; and (3) guidelines and examples development.

Principal Investigator; graduate student; and lab testing.

This project will also include FHWA participation.

Comments

We anticipate a total contribution of $60,000 per State or Partner spread over three years at $20,000 per year.

Documents Attached
Title File/Link Type Privacy Download
Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges http://www.dot.ca.gov/research/ Solicitation Public

Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges

General Information
Solicitation Number: 876
Status: Solicitation withdrawn
Date Posted: May 27, 2004
Last Updated: Apr 28, 2005
Solicitation Expires: May 27, 2005
Partners: CA, IN
Lead Organization: California Department of Transportation
Financial Summary
Commitment Start Year: 2004
Commitment End Year: 2007
100% SP&R Approval: Pending Approval
Commitments Required: $500,000.00
Commitments Received: $310,000.00
Contact Information
Lead Study Contact(s): Nathan Newell
nathan.newell@dot.ca.gov
Commitments by Organizations
Agency Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
California Department of Transportation 2004 $80,000.00 Saad El-Azazy Osama Elhamshary Osama_Elhamshary@dot.ca.gov
California Department of Transportation 2005 $80,000.00 Saad El-Azazy Osama Elhamshary Osama_Elhamshary@dot.ca.gov
California Department of Transportation 2006 $90,000.00 Saad El-Azazy Osama Elhamshary Osama_Elhamshary@dot.ca.gov
Indiana Department of Transportation 2005 $20,000.00 Tommy Nantung 765-463-1521 ext 248 tnantung@indot.in.gov
Indiana Department of Transportation 2006 $20,000.00 Tommy Nantung 765-463-1521 ext 248 tnantung@indot.in.gov
Indiana Department of Transportation 2007 $20,000.00 Tommy Nantung 765-463-1521 ext 248 tnantung@indot.in.gov

Background

In the US highway bridge system of 600,000 bridges, about 37% bridges are steel bridges. Including state and county bridges in California, there are about 3000 steel highway bridges. Most of these have been in service for more than 50 years and are close to or have surpassed their expected fatigue life. The proper evaluation of these structures to determine their remaining life is of great importance to the maintenance engineers. To this date, however, Caltrans does not have any approved guidelines to perform the evaluation of steel bridges with or without cracks in California.

There is an urgent need to develop guidelines for the proper evaluation of aging steel bridges to determine their remaining fatigue life. Savings of billions of dollars could be achieved by avoiding unnecessary replacement or by increasing the service life of some of aging steel bridges by retrofitting. Bridge Maintenance and Structure Design throughout the U.S. will benefit from this research.

In recent years, more information on variable-amplitude, fatigue behavior, high-cycles, long-life behavior, actual traffic loading, inspection and assessment of material properties and structural conditions, have been developed worldwide that provide a foundation upon which to build this research. Those new developments together with extensive information accumulated in Caltrans and U.S. make the development of the guidelines possible with the assistance of this research.

Objectives

The objective of the proposed research is to develop guidelines for the evaluation of remaining life of existing steel highway bridges. The guidelines shall provide practical procedures and examples to assess remaining life of steel bridges for purposes of inspection, maintenance and replacement to ensure public safety, mobility and reliability of U.S. aging steel bridges.

Scope of Work

The proposed research will have three major phases: (1) Literature search worldwide; (2) Field and lab investigation; and (3) guidelines and examples development.

Principal Investigator; graduate student; and lab testing.

This project will also include FHWA participation.

Comments

We anticipate a total contribution of $60,000 per State or Partner spread over three years at $20,000 per year.

Title Type Private
Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges Solicitation N

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