Laboratory testing and finite element modeling of precast bridge deck panel transverse connections.

Porter, Scott; Julander, J. Logan; Halling, Marvin W.; Barr, Paul; Boyle, Hugh; Utah State University. Department of Civil and Environmental Engineering

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Laboratory testing and finite element modeling of precast bridge deck panel transverse connections.

2010-08-06
By Porter, Scott ; Julander, J. Logan ; Halling, Marvin W. ; ...

[PDF-2.70 MB]

English

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Creators:

Porter, Scott ; Julander, J. Logan ; Halling, Marvin W. ; Barr, Paul ; Boyle, Hugh

Porter, Scott ; Julander, J. Logan ; Halling, Marvin W. ; Barr, Paul ; Boyle, Hugh Less -
Corporate Creators:

Utah State University. Department of Civil and Environmental Engineering
Subject/TRT Terms:

[+]

Bridges Bridges--Floors--Joints--Mathematical Models Bridges--Floors--Joints--Testing Floors Joints (Engineering) Precast Concrete Precast Concrete Construction--Utah
Publication/ Report Number:

UT-10.14
Resource Type:

Tech Report
Geographical Coverage:

Utah
Edition:

Final; 2008-2009.
Corporate Publisher:

Utah. Dept. of Transportation. Research Division
Abstract:

Precast bridge deck panels are increasingly used to reduce construction times and associated traffic delays as part of many DOT’s push for accelerated bridge construction. They allow a bridge deck to be built or replaced in days instead of months. Despite the obvious benefits, the connections between panels have had a history of service failure problems.

To evaluate service and ultimate capacities of existing and proposed connections, full scale shear and flexural tests were performed at Utah State University on several types of precast bridge deck connections. These tests focused on the determination of ultimate and cracking strengths of five connections. These five connections were a welded connection anchored using nelson studs, a welded connection with embedded rebar used to anchor the plates, a conventionally post tensioned connection, and two variations of a newly proposed post tensioned curved bolt connection.

The welded rebar connection was shown to be significantly stronger than the welded stud connection. It failed at 2.7 times the moment failing the welded stud connection cracked at 2.1 times the load cracking the welded stud connection. The curved bolt connections were also shown to be a good alternative to conventional post tensioning. The longer connections had slightly higher flexural capacities than the post tensioned connections and cracked at 0.75 times the moment cracking the post tensioned specimens.

Finite element analysis models were used to verify the results. These models were made using Ansys. The finite element results closely matched the laboratory results.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

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urn:sha256:bedc762ca5b3193fad83ecec0193147a36cd426900c78076e30558b81200eadb
Download URL:

https://rosap.ntl.bts.gov/view/dot/18404/dot_18404_DS1.pdf
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Laboratory testing and finite element modeling of precast bridge deck panel transverse connections.

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