3. PRESENTED TO: PRESENTED BY:
DR. MOHAMMAD ABDUL KADER
Professor
Department of Civil
Engineering, DUET
MR. MD. AL-AMIN SIKDER
Assistant Professor
Department of Civil
Engineering, DUET
Presented By- Group: 04
Md.Ibrahim Hossain -161096
Md. Raju Ahmed - 161097
Md. Mohon Hossen -161098
Md. Mahfuzer Rahman 161100
Md. Yusuf Ali - 161101
Md. Arafat Hossain Jibon 161102
Md. Ziaul Haque -161103
Md. Robiul Alam 161104
Dhaka University of Engineering & Technology, Gazipur
4. CONTENTS
• Definition
• Historical Background
• Basic components
• Types of Bridge
• Materials
• Types of loads on bridge
• Truck loading on bridge
• Design Procedure
• Reinforcement detailing
• Failure causes of bridge
• Bridge facts
5. Definition
• A structure built to span and provide passage
over a river, chasm, road, or any other physical
hurdle.
6. Historical Background
• The ancient world( 6000 years ago)
i. Ancient Romans were the greatest bridge builders
of ancient times.
ii. They built arch bridges and aqueducts some of
which still stand today.
iii. They also used cement which consisted of water,
lime, sand, and volcanic rock..
7. Historical Background
• The Middle Ages
The Iron Bridge, built in Coalbrookdale, England
in 1779, was one of the engineering marvels of
the time because it used cast iron for the first
time.
8. Historical Background
The Renaissance and after
i. Industrial Revolution in the 19th century brings truss
systems of wrought iron.
ii. Enters steel, with its higher tensile strength, which
replaces the iron and allows for much larger bridges.
Gustave Eiffel, with his fresh ideas, was one of the first to
use it.
iii. The first welded road bridge in the world was built by
welding pioneer Stefan Bryła in 1927.
10. Types of Bridge
Based on Type of Super Structure
• Arch bridge
• Girder bridge
• Truss bridge
• Suspension bridge
11. Types of Bridges based on Materials
• Timber bridge
• Masonry bridge
• Steel bridge
• R.C.C bridge
• Pre stressed concrete bridge
Conti….
12. Types of Bridges based on Span
• Culvert bridge
• Minor bridge
• Major bridge
• Long span bridge
Conti….
13. Types of Bridges based on Level of Crossing
• Over bridge
• Under bridge
Types of Bridges based on Utility
• Temporary bridge
• Permanent bridge
Conti….
14. Types of Bridges based on Function
• Foot bridge
• Highway bridge
• Rail way bridge
• Aqueduct bridge
• Road cum railway bridge
Conti….
15. According to length of bridge
• Culvert bridge(less than 6 m)
• Minor bridge(less than 6 m-60m)
• Major bridge(more than 60 m)
• Long span bridge(more than 120 m)
Conti….
16. Types of Bridges based on Position of Floor
• Deck bridge
• Through bridge
• Semi-through bridge
According to degree of redundancy
• Statically determined bridge
• Statically indetermined bridge
Types of Bridges based on Inter Span Relation
• Simple bridge
• Continuous bridge
• Cantilever bridge
Conti….
17. SOME DIFFERENT KIND OF PICTURE IN BRIDGE
HARDINGE BRIDGE, ISHWARDI
PABNA-1915
Alcántara bridge Alcántara, spain 104-106ce
HARDINGE BRIDGE,PAKSEY-1912
SHAH AMANAT BRIDGE,CHITTAGONG-
2010
24. Design procedure of a Slab Bridge
1. Dead load calculation
2. Live load calculation
3. Bending moment and shear calculation
4. Truck load and lane calculation
5. Moment and shear calculation due to truck and lane load
6. Factored moment shear calculation
7. Section and reinforcement calculation
8. Cracking moment calculation
9. Distributed and temperature and shrinkage reinforcement calculation
25. Design procedure of a Slab Bridge
Two methods:
1. IMPERICAL METHOD
2. TRADITIONAL METHOD
Procedure of IMPERICAL METHOD:
• The ratio of effective length to design depth does not exceed 18.0 and is not less
than 6.0.
• Core depth of the slab is not less than 4.0 in.
• The effective length does not exceed 13.5 ft.
• The minimum depth of the slab is not less than 7.0 in
• The specified 28-day strength of the deck concrete is not less than 4.0 ksi.
• Reinforcement requirements:
1. Minimum 0.18 sq. in./ft of steel for each top layer with a maximum allowable
spacing of 18 in.
2. Minimum of 0.27 sq. in./ft in each bottom layer
26. Procedure of Traditional method
1. Dead load calculation
2. Live load calculation
3. Bending moment and shear calculation
4. Truck load and lane calculation
5. Moment and shear calculation due to truck and lane load
6. Factored moment shear calculation
7. Section and reinforcement calculation
8. Cracking moment calculation
9. Distributed and temperature and shrinkage reinforcement
calculation
32. Bridge facts
DO you know what is the name of the longest bridge in the world?
The Danyang–Kunshan Grand Bridge is a 164.8-kilometre long viaduct
on the Beijing–Shanghai High-Speed Railway
DO you know what is the name of the shortest bridge in the world?
“El Marco” between Portugal and Spain. With a length of 3.2
meters (10.4 feet), it’s the shortest international bridge in the
world
DO you know what is the name of the longest bridge in BANGLADESH?
BHOLA BRIDGE with a length of 10km (proposed).
33. CONCLUSION
Bridges should be designed for specified limit
states to achieve the objectives of constructability,
safety and serviceability, with due to regard to
issues of inspectability,economy and aesthetics.
