Designing Concrete Bridge Decks

Quiz Question

1.A cast-in-place concrete deck is a thin concrete slab, either using normal reinforcement or prestressing steel, usually between _____ inches, with reinforcing steel interspersed transversely and longitudinally throughout the slab.
3-5
7-12
12-15
15-20
2. A large cost of bridge maintenance is in maintaining the ________________ .
Slabs
Concrete
Riding Surface
None of the above
3.Concrete decks are designed for:
Strength
Service
extreme limit states
All of the above
4.Designing for the maximum negative flexure reinforcement is ________ to designing for the maximum positive moment reinforcement.
Similar
Not similar
5. To improve crack control in the concrete deck, the reinforcement has to be well distributed over the area of.
Maximum stress
Minimum stress
Maximum tension
Minimum tension
6.The top slab reinforcement is for shrinkage and temperature changes near the __________ of the exposed concrete slab.
Bottom
Surface
7. As stands for :
area of tension reinforcement
depth of equivalent rectangular stress block
width of the compression fact of the member
None of the above
8.To facilitate better lateral load distribution, Caltrans’ Reinforced Concrete Technical Committee recommends that the bottom deck reinforcement be placed _____________ the center half of the deck span.
On top of
Within
Under
None of the above
9. Concrete cracking is controlled by the spacing of ___________________.
flexure reinforcement
slabs
decks
none of the above
10. Deck openings are _____________.
discouraged
encouraged