Concrete bridge decks with isotropic reinforcing : short term evaluation.

Brooks, Eric W.

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Concrete bridge decks with isotropic reinforcing : short term evaluation.

1998-09-01
By Brooks, Eric W.

[PDF-1.87 MB]

English

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Creators:

Brooks, Eric W.
Corporate Contributors:

Oregon. Dept. of Transportation. Research Unit ; United States. Federal Highway Administration

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

[+]

Bridge Decks Isotropy Reinforced Concrete Bridges
Publication/ Report Number:

OR-EF-99-06
Resource Type:

Tech Report
Geographical Coverage:

Oregon
Corporate Publisher:

Oregon. Dept. of Transportation. Research Unit
Abstract:

The Oregon Department of Transportation (ODOT) has used traditional truss bar layout for bridge deck reinforcement for many years. Studies by other states found the same performance using an isotropic deck grid steel reinforcement layout. The isotropic system uses less steel, which lowers the cost of the deck and reduces distress caused by rebar corrosion. Three bridges included in this study were built with isotropic reinforced decks. Within two years all the decks had some minor initial cracking. The deck on the Santiam Overflow No. 4 cracked soon after the forms were removed. This cracking could be related to the seismic activity in the area. The other two decks also cracked, but the cracks are very tight and do not appear to be through cracks. The short-term performance is as good as standard deck rebar layouts.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:4d471d13dc2bb6ef9c0eb66141105259bea0ee600408c96f3f4a5e75a27f442c
Download URL:

https://rosap.ntl.bts.gov/view/dot/22733/dot_22733_DS1.pdf
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Concrete bridge decks with isotropic reinforcing : short term evaluation.

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