This document provides information about the design of a composite deck bridge. It includes an abstract describing the key components of a composite deck bridge. The introduction defines different bridge types. The main body describes the structural components of a composite deck bridge, including the RC slab, steel girders, and shear connectors. It outlines the design procedure and provides literature references. The conclusion indicates that site data will be collected and a composite deck bridge will be analyzed and designed using MIDAS software.

1. Project Guide
Dr. MD Hussain
Head Of Dept. (CIVIL)
BATCH-18
• K.Dinesh Reddy(83)
• P.Eswar (A1)
• S.K.Riyaz (A9)
• V.Venkat Ramana Reddy(C0)
• B.Nirmal Kumar(118)
13/3/2015
GOKARAJU RANGARAJU INSTITUTE OF ENGINEERING
AND TECHNOLOGY
DEPARTMENT OF CIVIL ENGINEERING

2. 13/3/2015
Contents:
1) Abstract
2) Introduction
3) Composite Deck Bridge
a)The structural components of composite bridge
b)Advantages of composite deck bridge
4) Design Procedure
5) Literature Survey
6) References

3. 13/3/2015
Abstract:
The most common type of composite deck bridge
comprises of RC continuous slab supported by steel plate
girders . In a composite deck bridge ,the individual
materials are used efficiently since concrete is strong in
compression and steel in tension . This type of deck bridge
facilitates speedy erection of prefabricated steel girders
and considerably reduces the cost of form work . The
saving in overall depth of the beams leads to saving in the
lengths of approaches in the case embankments

4. 13/3/2015
Introduction :
What is a bridge?

5. 13/3/2015
Types of bridges: Based on Structure
Beam bridge Truss bridge Cantilever Bridges Arch bridge
Tied arch bridge Suspension bridges cable-stayed bridge

6. Composite Deck Bridge :
13/3/2015

7. 13/3/2015
The structural components of composite deck
bridge are:
• RC continuous slab
• Steel plate girders

8. 13/3/2015
Shear
Connectors
Flanges
Web

9. 13/3/2015

10. 13/3/2015

11. 13/3/2015
Advantages:
•High Effeciency
•Light Weight & Rapid Installation
•Zero Maintenance
•Highly resistant to earthquakes.
•As deck slabs are not thick and thus
easy to demolish and remove.

12. 13/3/2015
Types Of Loads Acting On Structure:
• Dead load
• Live load
• Impact load
• Wind load
• Earthquake load

13. 13/3/2015
a) Assumption of cross-sectional details of deck
b) Design of deck slab
c) Live load Bending Moment
d) Dead load Bending Moment
e) Design of section
1)Cross-section of deck

14. 13/3/2015
a) Dead load moments
b) Live load moments
c) Shear forces
d) Proportioning of trial section of web
plate
2.Design of steel plate girders
…continued in
next slide

15. 13/3/2015
e) Flange plates (top & bottom)
f) Check for maximum stresses
g)Connection between flange and web
h)Intermediate stiffeners
i)End bearing stiffeners
j) Connection of vertical stiffeners to web
…continued in
next slide
continuation …..

16. 13/3/2015
k)Connection between bearing stiffner & web
l)Design of shear connectors
m)Check for ultimate strength of plate girder
(i)Flexural strength
(ii)Shear strength
Continuation …..

17. 13/3/2015
Buckling and crushing of web

18. 13/3/2015
Diagonal stiffener

19. 13/3/2015
1) Journal of Bridge Engineering-2004 (vol-9)
Recommended procedures for Simplified Inelastic Design of Steel
I-Girder Bridges J. Bridge Eng, 9(3), 230–242
By:Barth.k , Hartnagel ,Donalt W White, Michael G Barker
This paper presents summary recommendations pertaining to new
AASHTO procedures for simplified inelastic design of steel I girder
bridges , effective plastic moment predictions based on the outcome
equations are combined with the recent design method

20. 13/3/2015
2) KSCE Journal of Civil Engineering-2001 (vol-5)
Design of Transverse Joints In Composite Bridges with Precast
Decks Issue 1, pp 17-27
By:Chang- Su Shim PhD, Kyu-Yong Choi ,Sung-Pil Chang
This paper investigated about the 2 types of connection for precast deck bridge
systems , shear connection & transverse joints between precast panels . It is
necessary to apply longitudinal prestress to prevent crack and water leakage to
transverse joints, assuming full prestressing is proposed. The long term
behaviour of composite beam with precast deck is investigated through
experiments for 430 days. From investigations loss of compressive stress at
joints is high and it should be a major factor in determining the magnitude of
initial prestress

21. 13/3/2015
FRP-Balsa Composite Sandwich Bridge Deck with Complex Core
Assembly
The aim of this work was to investigate to what extent the
performance of a glass fiber–reinforced polymer (GFRP) sandwich
slab-bridge with a uniform high-density balsa core could be
improved in terms of structural efficiency and weight. The FRP arch
reduced the force in the upper face sheet in the mid-span region and thus
prevented compression failure of the latter, which led to a higher ultimate
load

22. 13/3/2015
REFERENCES :
Data is collected from the following books
1. Design of steel structures part –I by V.Rama chadra
2. Design of steel structures by V.Krishnam Raju
3. Design of steel structures by S K Duggal
4. Code books
a) IS 800 : 2007
b) IRC 22 : 1986
c) IRC 6 : 2010
5. Journals are collected from http://www.ascelibrary.org and
also from http://www.sciencedirect.com

23. 11/3/2015
Now we will collect the required data from the site
and implement the above procedure for analysing
that structure and also trying to design the new
deck bridge by using the MIDAS Software……..