Pouring of the deck slab of a skew bridge
Pouring of the deck slab of a skew bridge
(OP)
I have to pour the deck slab of a skew bridge soon. After reading a bit of the literature out there on the subject, I’m getting a little nervous about the proper sequence of concrete pour to follow (i.e. perpendicular, parallel to skew, or staggered perpendicular pour).
I have a 260’ single-span 50’ wide bridge on 5 girders 10’deep, and a similar one with the same span, but 37’ wide on 4 girders; both with a skew of 39°. The slab to pour is 9" thick.
The steel installed was a hybrid of no-load fit and steel load fit, and we’re having to live with permanent girder top flange lateral displacements of ½” under steel load, and anticipated concrete pour displacements of ¾” , for a permanent total dead load lateral displacement of 1.5”
I'd appreciate the suggestions of someone who has a lot of experience pouring the decks of skew bridges.
I'm in Montreal, Canada.
I have a 260’ single-span 50’ wide bridge on 5 girders 10’deep, and a similar one with the same span, but 37’ wide on 4 girders; both with a skew of 39°. The slab to pour is 9" thick.
The steel installed was a hybrid of no-load fit and steel load fit, and we’re having to live with permanent girder top flange lateral displacements of ½” under steel load, and anticipated concrete pour displacements of ¾” , for a permanent total dead load lateral displacement of 1.5”
I'd appreciate the suggestions of someone who has a lot of experience pouring the decks of skew bridges.
I'm in Montreal, Canada.






RE: Pouring of the deck slab of a skew bridge
Best of luck! I'll be curious to hear what the others suggest here.
RE: Pouring of the deck slab of a skew bridge
RE: Pouring of the deck slab of a skew bridge
RE: Pouring of the deck slab of a skew bridge
RE: Pouring of the deck slab of a skew bridge
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RE: Pouring of the deck slab of a skew bridge
RE: Pouring of the deck slab of a skew bridge
IMHO, the most important single engineering concern is that on any one placement, ALL of the beams are equally loaded. That would define all placements, regardless of their position, as parallelograms.
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RE: Pouring of the deck slab of a skew bridge