Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges
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Financial Summary |
|
| Suggested Contribution: | |
| Commitment Start Year: | 2004 |
| Commitment End Year: | 2007 |
| 100% SP&R Approval: | Pending Approval |
| Commitments Required: | $500,000.00 |
| Commitments Received: | $310,000.00 |
| Estimated Duration Month: | 36 |
| Waiver Requested: | No |
Contact Information |
|
| Lead Study Contact(s): | Nathan Newell |
| nathan.newell@dot.ca.gov | |
Commitments by Organizations
| 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 |
Study Description
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
Documents Attached
| Title | File/Link | Document Category | Document Type | Privacy | Document Date | Download |
|---|---|---|---|---|---|---|
| Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges | http://www.dot.ca.gov/research/ | TPF Study Documentation | Solicitation | Public | 2011-09-25 |
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 |
|
| Suggested Contribution: | |
| 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 |
Study Description
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
| Title | Type | Private |
|---|---|---|
| Guidelines for Evaluation of Remaining Fatigue Life of Existing Steel Bridges | TPF Study Documentation | N |
