This document provides an analysis of a truss bridge submitted by SK Abdul Kaium. It includes introductions to trusses and their structural assumptions. It describes different types of trusses like Pratt and Warren trusses. It discusses the motivation for using trusses, their common uses, structural members, loads, load combinations, and methods of analysis. The document analyzes the design of a specific truss structure using STAAD-Pro software and concludes that truss structures are useful, stable, economical, and meet client needs for bridges and other applications.

1. ANALYSIS OF TRUSS BRIDGE
SUBMITTED BY
SK ABDUL KAIUM
Roll no : CEN124005
GROUP : A
UNDER THE GUIDANCE OF
Professor Jafar Sadek Ali
Professor Raghib Adil and
M.Tech student Wasim Molla & Sahin Ahmed

2. CONTENTS
Introduction
Assumption
Different types of truss
Motivation
Uses of truss
Structural member
Loads and load combination
Analysis of truss
Conclusion
Reference

3. INTRODUCTION
A truss is composed of straight slender member
pinned/hinged/rivetted/welded together to form
a rigid structures.

4. ASSUMPTIONS
Members are perfectly straight.
Loads are applied at the joints.
Joints are pinned and frictionless.
Members are subjected to axial force only.
Tensile
Compressive

5. DIFFERENT TYPES OF TRUSS
Pratt truss
Howe truss
Warren Truss

6. MOTIVATION
Truss derive their strength from triangle.
Rectangle and square are not very strong
as compared to triangle.
The shape of a triangle allows all of the
weight applied to the side to be
redistributed down and away from the
centre .
Truss are cost effective.
It can be installed quickly.

7. USES OF TRUSS
 Truss bridge
 Railway platform
 Roof of factory shade
 Garage shed
 Transmission tower
 Crane truss
 Sport stadium truss

8. STRUCTURAL MEMBER
Solid Bar
Solid Rod
Hollow Tube
I-Section
Angle Section
TYPES OF CONNECTION
Pinned connection
Gusset plate connection

9. DESIGN
Perfect / stable /sufficient
Statically determinate (Perfect Truss)
satisfies m=2j – 3
Analysis of the design truss structure is
done by using staad-pro

10. LOADS ON TRUSS
1.Dead Load
2.Live Load
3.Wind Load
4.Weight of the roof
5.Reactions at the supports

11. DIFFERENT LOAD COMBINATIONS
1.5(DL+LL)
1.2(DL+LL)±0.6WL
1.2(DL+LL±WL)
1.5(DL±WL)
0.9DL±1.5WL
Preffered load combination for our
design
1.2 (DL +LL + WL)

12. METHOD OF ANALYSIS OF TRUSS
1.Method of joints
2.Method of section

13. CONCLUTION
With increasing demand of bridge , truss
structure has become fruitful both in stability
consideration as well as economy point of
view. Truss structure are considered to be
one of the most useful structure used in our
daily life . Overall truss bridge design meets
the current needs of a client as well as any
expansion plans without making major
modification to the existing facilities

14. REFERENCES
N.Subramanian, Design of steel structures, Oxford University
press, New Delhi, India.
N. Krishna Raju (1987), Reinforced concrete structures, 4th
edition, Khans publishers, Delhi, India, pp 189-196.
Ramachandran(2006), D.S.S, Rajinder kumar jain publications,
tenth edition, pp238-267
IS:SP.6.1.1964
IS: 800 – 2007 (third version) General Construction in Steel —
Code of Practice
IS: 875 (Part 3) – 1987 (second version) Code of Practice for
Design Loads (other than Earthquake) for buildings and
structures. Part 3: wind loads

15. Thank You