presentation on modern swing bridges as minor project

1. NRI INSTITUTE OF RESEARCH
& TECHNOLOGY (NIRT)
MINOR PROJECT PRESENTATION
ON
“MODERN SWING BRIDGES ”
GUIDED BY-
PROF. KRITI RAIKWAR
(CIVIL DEPARTMENT)

2. o Introduction
o History
o Construction
o Types of Bridges
o Swing bridge
o Advantages
o Disadvantages
o Example of Swing Bridges
o Uses
CONTENTS

3. JAIMEET SINGH
SIDDHARTHA PATEL
VAIBHAV PATEL
SUMIT KUMAR
ASHU RAJ
ADITYA RAJ
GAURAV SHUKLA
PREPARED BY-

4. A bridge is a structure built to span physical obstacles without closing
the way underneath such as a body of water, valley, or road, for the
purpose of providing passage over the obstacle. There are many
different designs that each serve a particular purpose and apply to
different situations
BRIDGE

5.  Primitive Peoples :
― Logs
― Slabs of Rocks
― Intertwined Vines or Ropes
 Roman Empire-First Great Bridge Builders :
― Timber Truss Bridges
― Masonry Arch Bridges
 Europeans :
― Followed HRE Until Iron and Steel Use
 Nineteenth Century :
― Modern Long Bridges
― Moveable Bridges
HISTORY

6. Wadi Rum Rock Bridge

7. ROPE
BRIDGE

8. LOG BRIDGE
Members of a Denver and
Salt Lake Railroad
Company (D&SL) survey
crew pose on a log
bridge over the Colorado
River in Gore Canyon
(Grand County),
Colorado.

9.  Must carry own weight and weight of traffic
 Must withstand force of high winds
 Must consider effects of contraction and/or
 Expansion due to temperature changes
Most Common Materials
 Wood — Temporary
 Steel — For long, strong spans
 Reinforced concrete — Attractive designs but difficult to work with on
large bridges
 Prestressed concrete — Stronger than reinforced, cheaper than steel
CONSTRUCTION

11. Arch
 One or more arches
 Masonry, reinforced concrete or steel
 Roadway on top of arches or suspended by
cables
 Spans can be longer than beam or truss
FIXED

12. Truss
 Beam bridge strengthen by trusses (structural spats joined to form triangles
with tie rods)
 Lighter than ordinary beam sections of equal length
 Useful for longer bridges
FIXED

13. TRUSS BRIDGE
HOWRAH BRIDGE

14. Beam or Girder
 Two parallel beams with flooring supported by piers.
 Span can be supported by trestle.
 Used for highway , over/underpasses or small stream crossings.
 Example - Covered Bridge
FIXED

15. Suspension
 Roadway hangs from vertical cables supported by overhead
cables strung between two or more towers
 Longest spans
 Costly
 Difficult to design
 Highly susceptible to winds and swaying
 Cables can be up to three feet in diameter
FIXED

16. Cantilever
 Double-ended brackets Supporting a center span
 Shore end of each cantilever firmly anchored
 center supported by Pier
FIXED

17.  Cable-Stayed
 Suspended by cables that run directly down to roadway from central
towers
 Less costly than suspension
 Quickly constructible
 Spans must be limited in length
FIXED

18.  Swing
 Central span turned 90 degrees on pivot pier placed in middle of waterway
 Double swing possible
MOVABLE

19. SWING BRIDGE

21.  Basically a swing bridge having more capabilities.
 Can be used as railway bridges n road bridge
 Also used to give passage to ships (high rise ships)
 Angle btw bridges are 45
 For passage of ships is 90
MODERN SWING BRIDGE

22.  Right now INDIA is a developing country
 We need better infrastructure
 Pretty sure , it will add a star in Indian infrastructure
 Economical as it is 3 in 1 swing Bridge
 Waterways transport river
WHY THIS ?

23.  Making it more economical
 WORKIN MODEL
 3 in 1
 Ease to water transport
 Can boost MAKE IN INDIA program
OUR MOTIVE

24. DRAWING OF PROPOSED MODEL

25.  As this type requires no counterweights, the complete
weight is significantly reduced as compared to other moveable bridges.
Where sufficient channel is available to have individual traffic directions
on each side, the likelihood of vessel-to-vessel collisions is reduced.
 Economical than other as it is a combination of two.
 Time saving
 A star added to our bridge technology.
ADVANTAGES

26. INDIA
 Garden Reach Road Swing Bridge for Calcutta Port, Kolkata
 Poira - Corjuem Bridge, for GSIDC, Corjuem , Goa
OTHER COUNTRIES
Argentina, Australia, America, Canada, Egypt, US ,UK , Ireland, Germany,
Italy and many other countries.
EXAMPLES

27. THE LARGEST DOUBLE SWING-SPAN BRIDGE IN THE UNITED
STATES IS THE 3,250 FEET (990 M) LONG, 450 FEET (140 M)
NAVIGABLE SPAN, 60 FEET (18 M) CLEARANCE GEORGE P.
COLEMAN MEMORIAL BRIDGE

28.  Can be Used in our river Bridges as we are developing country…we need
water trans port.
 US has more than 50 swing bridges as they use water transport equally as
others.
 We have only 2 bridges in india.
 Used for railway as well as roadways bridges at the same time, also gives
passage to ships.
USES