This document discusses different types of movable bridges. It defines a movable bridge as one that moves to allow passage, usually for boats or barges. It then describes and provides examples of various types of movable bridges, including draw bridges, bascule bridges, folding bridges, curling bridges, vertical-lift bridges, table bridges, retractable bridges, submersible bridges, tilt bridges, swing bridges, transporter bridges, and jet bridges. It concludes with a brief discussion of advantages and disadvantages of movable bridges.

1. By…..
G.SHIVAKRISHNA

2.  What is a bridge?
 What is movable bridge?
 Types of movable bridges?
 Advantages?
 Disadvantages?

3. A bridge is a structure built to span physical obstacles such as a body of
water, valley, or road, for the purpose of providing passage over the obstacle.
What Is a Bridge?

4. A moveable bridge, or movable bridge is a bridge that moves to allow passage
(usually) for boats or barges.
What is Moveable bridge?

5. A drawbridge or draw-bridge is a type of movable bridge typically associated
with the entrance of a castle surrounded by a moat
Draw Bridge

6. A bascule bridge (commonly referred to as a drawbridge) is a moveable
bridge with a counterweight that continuously balances as pan, or "leaf,"
throughout its upward swing to provide clearance for boat traffic
Bascule Bridge

7. It is a three-segment bascule bridge that folds in the shape of the letter N.
Folding bridge

8. The bridge consists of eight triangular sections hinged at the walkway level and
connected above by two-part links that can be collapsed towards the deck
by hydraulic cylinders, which are concealed in vertical posts in the bridge parapets.
Curling bridge

9. A vertical-lift bridge or lift bridge is a type of movable bridge in which
a span rises vertically while remaining parallel with the deck.
Vertical lifting bridges

10. A table bridge is a moveable bridge in which the deck moves along the vertical
axis. Hydraulic pillars under the bridge raise the bridge deck to allow barge
traffic to pass beneath it
Table Bridges

11. A retractable bridge is a type of movable bridge in which the deck can be rolled
or slid backwards to open a gap while crossing traffic, usually a ship on a
waterway. This type is sometimes referred to as a thrust bridge.
Retractable bridge

12. A submersible bridge is a type of movable bridge that lowers the bridge deck
below the water level to permit waterborne traffic to use the waterway.
submersible bridge

13. A tilt bridge is a type of moveable bridge which rotates about fixed endpoints
rather than lifting or bending, as with a drawbridge
Tilt bridge

14. A swing bridge is a movable bridge that has as its primary structural support a
vertical locating pin and support ring, usually at or near to its center of gravity,
swing bridge

15. A transporter bridge (also ferry bridge or aerial transfer bridge) is a type
of movable bridge that carries a segment of roadway across a river.
The gondola is slung from a tall span by wires or a metal frame
Transporter bridge

16. A jet bridge extends from an airport terminal gate to an airplane, allowing
passengers to board and disembark without going outside.[
Jet bridge

17. Advantages
An advantage of making bridges moveable Is
the lower cost, due to the absence of high
piers and long approaches
Disadvantages
The principal disadvantage is that the traffic
on the bridge must be halted when it is
opened for passages.

18. Wikipedia & Youtube