1. POWERPOINT PRESENTATION
BRIDGE ENGINEERING

2. Introduction To Bridge Engineering

3. DEFINITION
A bridge is structure that allows people or vehicles to cross an obstacle such as river or canal or railway….

4. COMPONETS
Deck
Abutment
Piers
Bearing

5. Components Of Bridge

6. Definition of Components of bridge
Deck
A bridge with an upper horizontal beam that carries roadway.

7. Abutment
It supports the ends of the bridge and transfer the loads from the superstructure into the ground.

8. PIERS The main supports for a bridge upon which the bridge rests are
called piers.

9. Bearing
A bridge bearing is a component of a bridge which typically provides a resting surface between bridge piers and the bridge deck.

10. CLASSIFICATION OF BRIDGES
According to type of superstructure
Slab bridge
Beam bridge
Truss bridge
Arch bridge
Cable suspended bridge

11. Slab bridge

12. Beam Bridge

13. Truss bridge

14. ARCH BRIDGE

15. CABLE SUSPENSION BRIDGE

16. (According to Material)
TYPES OF BRIDGE
(According to Material)
Timber bridge
Concrete bridge
Stone bridge
R c c bridge
Steel bridge
P c c bridge
Composite bridge

17. TIMBER BRIDGE

18. Concrete Bridge

19. Stone bridge

20. R.C.C. Bridge

21. Steel Bridge

22. Composite bridge

23. IMPORTANCE OF BRIDGES Improvement of environment for emergency care.
Improvement of convenience of public transportation.
Ease of traffic jam and reduction of railroad crossing.

24. Improvement of environment for emergency

25. Improvement of convenience of public transportation

26. Ease a traffic jam and reduction of a railroad crossing

27. Investigation
For
Bridge

28. GENERAL DATA COLLECTION
location of bridge site.
Transportation of bridge site.
Nature of crossing and affordability.
Availability of local material.
Traffic volume.
Availability of local bridge builders.
Temporary crossing.
Local participation.

29. DATA DRAWING

30. Important Definition Linear water way. Economical span.
Design discharge.
Scour depth.
Vertical clearance above HFL.

31. LINEAR WATER WAY
A river or canal ,or other body of water serving as a route or way of travel.

32. Economic span Economic span depend upon the cost of : Substructure
Superstructure

33. Scour Depth
The depth which is produced due to scouring action of water
Depth of scour below the high flood level
Scour depth has important in determination depth of foundation
Mean scour depth(d)=9.2m
Max .scour depth for piers=2d =18.4m

34. VERTICAL CLEARANCE
Minimum vertical clearance of 5m should be ensure over the full width of roadway.
The vertical clearance should be measured with regard to the highest point of carriageway.
Allowance for any future raising of pavement is also be made.

35. SELECTION OF
BRIDGE TYPE

36. POINTS FOR SELECTION OF BRIDGE TYPE
Geometric condition of the site(road alignment, design flood and highest water mark)
Traffic capacity.
Structural stability.
Foundation conditions and strength of a abutment.
Available material.
Knowledge and equipment of the contractor.
Clearance requirement above and below the road way.
General requirements with respect to location ,financing and community values.

37. Traffic Projection