Complete Guide to Bridge Foundations and Substructures
Component part of bridge
Foundation
Substructure
superstructure
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Component part of bridge
•
Foundation : the lowest artificially built part of
abutments, piers & other similar structure having
direct contact with the subsoil & supporting the
bridge supersture
•
Substructure: The lower part of bridge in the
form of abutment, piers, wing wall etc. along with
their foundation
•
Superstructure: the upper part of bridge
consisting of beam, girders, arches, suspension
cables etc carrying communication route
Different terms
•
Clear span
•
Effective span
•
Economical span
•
Water way
•
Natural Water way
•
Artificial Water way
•
Linear Water way
•
Afflux
•
Scour
•
Highest flood level (H.F.L.)
•
Free board
•
Lowest water level (L.W.L)
•
Ordinary flood level (O.F.L.)
FOUNDATION
CARRYING TOTAL WEIGHT
•
Function
1.
To take load & transfer to subsoil
2.
To provide level base
3.
To prevent tilt& over turning
4.
To avoid unequal settlement
5.
To prevent sinking
6.
To provide stability
Types of bridge foundation
•
Spread foundation
•
Raft foundation
•
Grillage foundation
•
Inverted arch foundation
•
Pile foundation
•
Well foundation
•
Caisson foundation
Spread foundation
Raft foundation
Grillage foundation
Inverted arch foundation
Pile foundation
Well foundation
Caisson foundation
Piers
•
The intermediate supports
Function
•
To take & transfer the load
•
To divide the length of bridge
Types of piers
•
Solid piers
a)solid masonary piers
b) solid R.C.C piers
•
Open piers
a) Abutment piers
b) cellular piers
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Explore the various components of bridge construction such as foundations, substructures, and superstructures. Learn about the different types of bridge foundations including spread, raft, grillage, inverted arch, pile, well, and caisson foundations. Discover the functions of bridge foundations in carrying total weight and ensuring stability. Gain knowledge about common bridge construction terms and their significance in bridge engineering.
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Presentation Transcript
Component part of bridge Foundation Substructure superstructure Visit for more Learning Resources Visit for more Learning Resources
Component part of bridge Foundation : the lowest artificially built part of abutments, piers & other similar structure having direct contact with the subsoil & supporting the bridge supersture Substructure: The lower part of bridge in the form of abutment, piers, wing wall etc. along with their foundation Superstructure: the upper part of bridge consisting of beam, girders, arches, suspension cables etc carrying communication route
Different terms Clear span Effective span Economical span Water way Natural Water way Artificial Water way Linear Water way Afflux Scour Highest flood level (H.F.L.) Free board Lowest water level (L.W.L) Ordinary flood level (O.F.L.)
FOUNDATION CARRYING TOTAL WEIGHT Function 1. To take load & transfer to subsoil 2. To provide level base 3. To prevent tilt& over turning 4. To avoid unequal settlement 5. To prevent sinking 6. To provide stability
Types of bridge foundation Spread foundation Raft foundation Grillage foundation Inverted arch foundation Pile foundation Well foundation Caisson foundation
Piers The intermediate supports Function To take & transfer the load To divide the length of bridge
Types of piers Solid piers a)solid masonary piers b) solid R.C.C piers Open piers a) Abutment piers b) cellular piers For more detail contact us For more detail contact us
