Repetitive Load Test on Composite Precast Concrete Decked Bridges

Osegueda, R. A.; Noel, J. S.

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Repetitive Load Test on Composite Precast Concrete Decked Bridges

1986-04-01
By Osegueda, R. A. ; Noel, J. S.

File Language:

English

Details

Creators:

Osegueda, R. A. ; Noel, J. S.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Bridge Decks Composite Construction Dynamic Structural Analysis Dynamic Tests Epoxides Fatigue (Mechanics) Mortar Precast Concrete Stud Connectors
Publication/ Report Number:

FHWA/TX-86/+324-3
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Interim: September 1981 - April 1986
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

Bridge deck replacement using precast concrete panels minimizes replacement time as well as traffic interference. An experimental study consisting of a repetitive load test on a 1/3 scale model of a 60-ft I-beam composite bridge with precast concrete panels connected with epoxy mortar and shear stud connectors is described here. Two million load cycles of an equivalent HS20-44 AASHTO design truck were: applied to the model while deflections, flexural strains and slip displacements were continuously instrumented to determine changes in the flexural properties of the bridge or deteriorations at the interface connections. The results were analyzed and revealed no significant changes in the flexural properties after the two million cycles were applied. There was also no evidence of any epoxy mortar bond failure at the interface even though the amount of bond area was minimized. The epoxy mortar bond, although it is not considered for design, prolongs the fatigue life of the mechanical shear stud connectors. It is concluded that this type of construction yields a fatigue-resistant interface connection.
Format:

PDF
Funding:

2-5-82-324
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:c997f6d175ab17dadec06bcb7bb31d00c8ac1314438592d78b007f432fa6bf3df397a05d04c0f8fa4f01a62e9297cd87154886ce529f36931b115aec87baebc7
Download URL:

https://rosap.ntl.bts.gov/view/dot/85842/dot_85842_DS1.pdf
File Type:

[PDF - 2.91 MB ]

File Language:

English

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