Full Depth Precast Bridge Deck
Full Depth Precast Bridge Deck
(OP)
I am currently designing a steel structure with a full dpeth precast deck. It will be the first one in our area.
Does anyone know of a state that has standard drawigns for such an item? If so, could you please post a link.
Also, any good articles that I about the topic?
Thanks
Does anyone know of a state that has standard drawigns for such an item? If so, could you please post a link.
Also, any good articles that I about the topic?
Thanks





RE: Full Depth Precast Bridge Deck
In the late 90's, The Fort Miller Company in Schuylerville NY (518-695-5000)fabricated full-depth, precast, post-tensioned panels for a NYSDOT project. They might be able to help you.
RE: Full Depth Precast Bridge Deck
RE: Full Depth Precast Bridge Deck
The only recently published arcticle is by Dr. Tadros in September/October 2004 PCI Journal. There're many issues and restraints for this type of construction, you will have to research. Contact me at yakov@yakpol.net for more information.
RE: Full Depth Precast Bridge Deck
RE: Full Depth Precast Bridge Deck
Precast deck may become more economical for tall bridges over the water, when access from underneath is limited, and panels placed consequently starting from abutments into the span. Also on-site construction time for precast is shorter.
Compare costs:
CIP deck $500 to $700 per cubic yard
Precast deck $25 to $30 per square foot (9" thick yields to $900 to $1080 per cubuc yard) + installation (high strength grout, post-tensioning...)
But if the client wants it we deliver!
RE: Full Depth Precast Bridge Deck
RE: Full Depth Precast Bridge Deck
I will be guru on precast decks when we'll build one, so far it's just words. I did design transverse post-tensioning decks of box-girder. The overhang was about 15 feet, so no way to have just reinforced. When you need to minimize bottom slab of box-girder (horizontal clearances of substructure and weight efficiency) the overhangs and angle of inclined webs grow up. Also, reducing number of cells in the box the distance between the webs becomes large and requires post-tensioning.