Forensic testing of a double tee bridge.

Barr, Paul J.; Halling, Marv W.; Pettigrew, Christopher S.; Utah State University

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Forensic testing of a double tee bridge.

2014-12-01
By Barr, Paul J. ; Halling, Marv W. ; Pettigrew, Christopher S.

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Creators:

Barr, Paul J. ; Halling, Marv W. ; Pettigrew, Christopher S.

Barr, Paul J. ; Halling, Marv W. ; Pettigrew, Christopher S. Less -
Corporate Creators:

Utah State University
Corporate Contributors:

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

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

[+]

Bearing Capacity Bending Stress Finite Element Method Girders Lightweight Concrete Precast Concrete Prestressed Concrete
Publication/ Report Number:

CAIT-UTC-044
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Rutgers University. Center for Advanced Infrastructure & Transportation
Abstract:

This report describes an investigation to quantify the behavior of precast, prestressed concrete double-tee bridge

girders made with lightweight concrete. As part of the investigation, three bridge girders were salvaged from a

decommissioned bridge in Coalville, Utah. Each girder was subjected to a cracking test to determine the residual

prestress force after approximately forty-eight years of service life. Once the prestress losses were quantiﬁed, a

ﬂexural capacity test was performed on each girder, as well as shear capacity tests performed at various distances

from the support. The measured losses and capacities were compared to estimated values calculated according

to procedures in the AASHTO LRFD Speciﬁcations. It was concluded that the AASHTO LRFD procedures for

calculating prestress losses were accurate and the calculated shear capacities were conservative. However, the

calculated ﬂexural capacities were not conservative, which is believed to be a result of deck deterioration. In

addition to the physical tests, a nonlinear ﬁnite-element analysis (FEA) was conducted using ANSYS that was

found to replicate the experimental behavior, failure mechanism, and magnitude.
Format:

PDF
Funding:

DTRT12-G-UTC16
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:2648eedeea8b179fca3d7d9c1bd7962106212773a9484c1058659b4230adfcd1
Download URL:

https://rosap.ntl.bts.gov/view/dot/28582/dot_28582_DS1.pdf
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Forensic testing of a double tee bridge.

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