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Method to Evaluate Remaining Prestress in Damaged Prestressed Bridge Girders

S. A. Civjan / J. O. Jirsa / R. L. Carrasquillo / D. W. Fowler

In assessing damage to a prestressed bridge girder, it is often necessary to determine the prestress remaining in the strands. A device was developed to estimate stress level in strands in damaged bridges. A lateral load is applied to a strand exposed by virtue of damage to the concrete and the resulting displacement is measured. A series of tests were performed to calibrate the devices available commercially or developed by other researchers. The special features of the device developed in the project are its simplicity, portability, and versatility.

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Method to Evaluate Remaining Prestress in Damaged Prestressed Bridge Girders

S. A. Civjan / J. O. Jirsa / R. L. Carrasquillo / D. W. Fowler

In assessing damage to a prestressed bridge girder, it is often necessary to determine the prestress remaining in the strands. A device was developed to estimate stress level in strands in damaged bridges. A lateral load is applied to a strand exposed by virtue of damage to the concrete and the resulting displacement is measured. A series of tests were performed to calibrate the devices available commercially or developed by other researchers. The special features of the device developed in the project are its simplicity, portability, and versatility.

Method to Evaluate Remaining Prestress in Damaged Prestressed Bridge Girders

S. A. Civjan / J. O. Jirsa / R. L. Carrasquillo / D. W. Fowler

In assessing damage to a prestressed bridge girder, it is often necessary to determine the prestress remaining in the strands. A device was developed to estimate stress level in strands in damaged bridges. A lateral load is applied to a strand exposed by virtue of damage to the concrete and the resulting displacement is measured. A series of tests were performed to calibrate the devices available commercially or developed by other researchers. The special features of the device developed in the project are its simplicity, portability, and versatility.

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Title:

Method to Evaluate Remaining Prestress in Damaged Prestressed Bridge Girders

Contributors:

S. A. Civjan (author) / J. O. Jirsa (author) / R. L. Carrasquillo (author) / D. W. Fowler (author)

Publication date:

1995

Size:

76 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Construction Equipment, Materials, & Supplies , Highway bridges , Girders , Test equipment , Measuring instruments , Concrete structures , Stresses , Prestressed concrete , Repair , Bridge decks , Calibration

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