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Sleeper beams and approach slabs are structural elements used in bridge construction to:

Sleeper Beam
1. *Distribute loads*: Sleeper beams distribute loads from the bridge deck to the abutments or piers.
2. *Provide support*: Sleeper beams provide support for the bridge deck and help to maintain its stability.
3. *Reduce settlement*: Sleeper beams can help to reduce settlement and movement of the bridge deck.

Approach Slab
1. *Transition zone*: Approach slabs serve as a transition zone between the bridge deck and the approach road.
2. *Reduce settlement*: Approach slabs can help to reduce settlement and movement of the bridge deck and approach road.
3. *Improve ride quality*: Approach slabs can improve the ride quality of the bridge by providing a smooth transition between the bridge deck and the approach road.

Benefits
1. *Improved stability*: Sleeper beams and approach slabs help to improve the stability of the bridge deck and surrounding structure.
2. *Reduced maintenance*: By distributing loads and providing support, sleeper beams and approach slabs can help to reduce maintenance requirements.
3. *Increased safety*: Sleeper beams and approach slabs can help to increase safety by preventing movement or shifting of the bridge deck.

Applications
1. *Bridge construction*: Sleeper beams and approach slabs are commonly used in bridge construction to provide support and stability for the bridge deck.
2. *Highway construction*: Sleeper beams and approach slabs may be used in highway construction to provide a smooth transition between the highway and bridge deck.
Sleeeper beam
Approach slab work
Pqc work
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