Shear capacity of in service prestressed concrete bridge girders.

Barr, Paul J.; Halling, Marv; Petty, Dave; Osborn, Perry; Utah State University. Department of Civil and Environmental Engineering

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Shear capacity of in service prestressed concrete bridge girders.

2010-05-17
By Barr, Paul J. ; Halling, Marv ; Petty, Dave ; ...

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Creators:

Barr, Paul J. ; Halling, Marv ; Petty, Dave ; Osborn, Perry

Barr, Paul J. ; Halling, Marv ; Petty, Dave ; Osborn, Perry Less -
Corporate Creators:

Utah State University. Department of Civil and Environmental Engineering
Corporate Contributors:

Utah. Dept. of Transportation ; United States. Federal Highway Administration

Utah. Dept. of Transportation ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridges Concrete Beams--Testing Concrete Bridges--Testing Girders Girders--Testing Prestressed Concrete Prestressed Concrete Bridges Shear Strength
Publication/ Report Number:

UT-10.09
Resource Type:

Tech Report
Geographical Coverage:

Utah
Edition:

Final report; July 2007-July 2009.
Corporate Publisher:

Utah. Department of Transportation
Abstract:

The design of prestressed concrete bridge girders has changed significantly over the past several

decades. Specifically, the design procedure to calculate the shear capacity of bridge girders that

was used forty years ago is very different than those procedures that are recommended in the

current AASHTO LRFD Specifications. As a result, many bridge girders that were built forty

years ago do not meet current design standards, and in some cases warrant replacement due to

insufficient calculated shear capacity. However despite this insufficient calculated capacity, these

bridge girders have been found to function adequately in service with minimal signs of distress.

The objective of this research was to investigate the actual in service capacity of prestressed

concrete girders that have been in service over an extended period of time. The actual capacity

was compared with calculated values using the AASHTO LRFD Specifications.
Format:

PDF
Funding:

79215
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:415ebe5112091a7c2d34fb061942d6fe267790cd4a6ce07e6ecc7f31e7b4b16e
Download URL:

https://rosap.ntl.bts.gov/view/dot/18078/dot_18078_DS1.pdf
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Shear capacity of in service prestressed concrete bridge girders.

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