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Course Learning Objectives:
The objective of this course is to:
• Familiarize Students with different types of Connections and relevant IS codes
• Equip student with concepts of design of flexural members
• Understand Design Concepts of tension and compression members in trusses
• Familiarize students with different types of Columns and column bases and their
• Familiarize students with Plate girder and Gantry Girder and their Design
Course Outcomes:
At the end of this course the student will be able to
• Work with relevant IS codes
• Carryout analysis and design of flexural members and detailing
• Design compression members of different types with connection detailing
• Design Plate Girder and Gantry Girder with connection detailing
• Produce the drawings pertaining to different components of steel structures
UNIT – I Connections: Introduction: (a) Riveted connections – Definition, rivet
strength and capacity- Codal Provisions, (b) Welded connections: Introduction,
Advantages and disadvantages of welding- Strength of welds-Butt and fillet welds:
Permissible stresses – IS Code requirements. Design of fillet weld subjected to moment
acting in the plane and at right angles to the plane of the joints.
All units i.e. from unit II to unit-VI to be taught in Limit State Design and in Welded
connections only.
UNIT – II Beams: Allowable stresses, design requirements as per IS Code-Design of
simple and compound beams-Curtailment of flange plates, Beam to beam connection,
check for deflection, shear, buckling, check for bearing, laterally unsupported beams.
UNIT –III Tension Members and compression members: General Design of members
subjected to direct tension and bending –effective length of columns. Slenderness ratio –
permissible stresses. Design of compression members, struts etc.
Roof Trusses: Different types of trusses – Design loads – Load combinations as per IS
Code recommendations, structural details –Design of simple roof trusses involving the
design of purlins, members and joints – tubular trusses.
UNIT – IV Design of Columns: Built up compression members – Design of lacings and
battens. Design Principles of Eccentrically loaded columns, Splicing of columns.
4 0 0 3
UNIT – V Design of Column Foundations: Design of slab base and gusseted base.
Column bases subjected moment.
UNIT – VI Design of Plate Girder: Design consideration – I S Code recommendations
Design of plate girder-Welded – Curtailment of flange plates, stiffeners – splicing and
Design of Gantry Girder: impact factors – longitudinal forces, Design of Gantry girders.
NOTE: Welding connections should be used in Units II – VI.
The students should prepare the following plates.
Plate 1 Detailing of simple beams
Plate 2 Detailing of Compound beams including curtailment of flange plates.
Plate 3 Detailing of Column including lacing and battens.
Plate 4 Detailing of Column bases – slab base and gusseted base
Plate 5 Detailing of steel roof trusses including joint details.
Plate 6 Detailing of Plate girder including curtailment, splicing and stiffeners.
The end examination paper should consist of Part A and Part B. part A consist of two
questions in Design and Drawing out of which one question is to be answered. Part B
should consist of five questions and design out of which three are to be answered.
Weightage for Part – A is 40% and Part- B is 60%.
1. Steel Structures Design and Practice, N. Subramanian, Oxford University Press.
2. Design of steel structures, S. K. Duggal, Tata Mc Graw Hill, New Delhi
3. Design of Steel Structures S. S. Bhavikatti, I. K International Publishing House Pvt.
1. Structural Design in Steel, Sarwar Alam Raz, New Age International Publishers,
New Delhi
2. Design of Steel Structures, M. Raghupathi, Tata Mc. Graw-Hill
3. Structural Design and Drawing, N. Krishna Raju; University Press,
IS Codes:
1) Indian Standard Code for General Construction in Steel, 3rd revision, Indian Standards
Institution, New Delhi,2008.
2) IS – 875, Code of practice for design loads (other than earth quake) for buildings and
structures (Part-1-Part 5),Bureau of Indian standards.
3) Steel Tables.
These codes and steel tables are permitted to use in the examinations.