DESIGN OF STRUCTURES
CE 661
Lectures : 4 Year : III
Tutorial : 2 Part : II
Practical : 0
Course Objective:
This course is
aimed at teaching students the concept of design of structures and computational
analysis for the design and management of agricultural projects. It gives a
practical approach to the various facts of the subject and emphasizes the
application of steel, timber and concrete structures to solve engineering
problems in the agricultural engineering field.
Part-A: Design of Steel and Timber Structures
1.
Introduction: [2
hours]
1.1. Types of loads on
steel structures
1.2. Use of steel and
timber in structures
1.3. Stress-strain
behaviour and allowable stress in structural steel
1.4. Codes of practice for
design of steel structures
2.
Design Criteria for
Steel Structures [3
hours]
2.1. Method of design
2.2. Design based on
allowable stress
2.3. Principle of limit
states design
2.4. Floor and truss
system
3.
Design of Riveted
and Welded Connections [4
hours]
3.1. Types and failure
of riveted joints
3.2. Rivet value and
efficiency
3.3. Types and stresses
in welded joints
3.4. Design of riveted
joint under axial forces
3.5. Design of riveted
joint under eccentric forces
3.6. Design of welded
joints and axial forces
3.7. Design of welded
joints under eccentric forces
4.
Design of Tension
Members [2
hours]
4.1. Types of tension
members
4.2. Net sectional area
4.3. Design of angles,
tee and tubular sections
5.
Design of
Compression Members [4
hours]
5.1. End conditions and
effective length
5.2. Radius of gyration
and slenderness ratio
5.3. Design of compressive
members under axial loads
5.4. Design of bases for
axially loaded columns
6.
Design of Beams [4
hours]
6.1. Beams subjected to
bending and axial forces
6.2. Bending and axial
stress
6.3. Shear Stresses
6.4. Deflection limits
6.5. Design of laterally
supported beams
6.6. Design of bearing
plates
7.
Design of Build-Up
Compression Members [3
hours]
7.1. Types of build-up
beams
7.2. Design of cover
plates
7.3. Check for stresses
8.
Design of Roof
Trusses [4
hours]
8.1. Angular and tubular
sections
8.2. Loads on roof
trusses
8.3. Forces and
deflections in trusses
8.4. Graphical method of
finding forces in roof truss members
8.5. Design of purlins
8.6. Design of bearing
and anchorage
8.7. Design of wind
bracings
9.
Design of Timber
Structures [4
hours]
9.1. Types and
properties of timber
9.2. Allowable stresses
in timber
9.3. Use of Timber in
construction
9.4. Codes of practice
for the design of timber structures
9.5. Design of
compression members
9.6. Design of beams
9.7. Types of joints and
their connections
Part-B: Design of Reinforced Concrete Structures
1. Design Concepts of Reinforced Concrete Structures [4 hours]
1.1.
Limitations
of use of plain concrete
1.2.
Purpose
of steel reinforcement
1.3.
Concept
of reinforced concrete
1.4.
Assumptions
in elastic theory as applied to RCC
1.5.
Loads,
forces and stresses
2.
Working Stress
Method [4
hours]
2.1.
Single
reinforced sections
2.2.
Modular
ratio
2.3.
Neutral
axis and stress and strain diagrams
2.4.
Analysis
of single reinforced sections
2.5.
Shear
stress and diagonal tension
2.6.
Bond
and torsion
3.
Reinforcement
Detailing [4
hours]
3.1.
Spacing
of reinforcement and concrete cover
3.2.
Minimum
and maximum reinforcement in beams, slabs and columns
3.3.
Minimum
and maximum sizes of reinforcing bars
3.4.
Details
of reinforcement in beams and columns
4.
Limit State Method [6
hours]
4.1.
Safety
and serviceability requirements
4.2.
Characteristic
strength of materials and safety factors
4.3.
Characteristic
load and their partial safety factors
4.4.
Limit
state of collapse in compression
4.5.
Limit
state of collapse in shear
4.6.
Limit
state of collapse in torsion
4.7.
Limit
sate of serviceability in deflection
4.8.
Limit
state of serviceability in cracking
5.
Design by Limit
State Method [12
hours]
5.1.
Design
of singly reinforced beams
5.2.
Design
of doubly reinforced beams
5.3.
Design
of flanged beams
5.4.
Design
of one way slabs
5.5.
Design
of two way slabs
5.6.
Design
of columns
5.7.
Design
of footings
Tutorials
The
tutorial classes shall be used for design problem solving and the students
shall be required to submit following design assignment:
a) Steel
Structures
i. Design problems on riveted and welded
connections
ii. Design of continuous beam supported on
columns
iii. Graphical method in the analysis of forces
in a typical roof truss
iv. Design and drawing of a typical plane roof
truss
v. Design and details of columns including
base plate, foundation and anchorage
b) RCC
Structures
i. Design
and drawing of rectangular and flanged beams with single and double reinforcement
ii. Design
and drawing of one way and two way slabs
iii. Design
and drawing of axially loaded columns
iv. Design
of footings
References:
i.
Design
of Steel Structures by V.M. Vazirani and M.H. Rativani. Khanna Publishers, New
Delhi (Latest Edition)- 11 copies
ii.
Design
of Concrete Structures by V.M. Vazirani and M.H. Rativani. Khanna Publishers,
New Delhi (Latest Edition)- 11 copies
iii. Design of Reinforced Concrete
Structures by P. Dayaratnam. Oxford and IBH Publishing Co.- 6 copies
iv. Design of Steel Structures by Kazimi
and Jindal. Prentice Hall of India Ltd. (Latest Edition)- 6 copies
Evaluation
Scheme:
The
questions will cover the entire chapter of the syllabus. The evaluation scheme
will be as indicated in the table below:
|
Chapter
|
Hour
|
Marks
distribution*
|
|
Part – A:
|
|
|
|
1
|
2
|
8
|
|
2
|
3
|
|
|
3
|
4
|
5
|
|
4
|
2
|
10
|
|
5
|
4
|
|
|
6
|
4
|
5
|
|
7
|
3
|
8
|
|
8
|
4
|
|
|
9
|
4
|
5
|
|
Part – B:
|
|
|
|
1
|
4
|
5
|
|
2
|
4
|
5
|
|
3
|
4
|
5
|
|
4
|
6
|
8
|
|
5
|
12
|
16
|
|
Total
|
60 hrs
|
80
|
* There may be mirror deviation in marks
distribution.
Ø
The
questions setting should be in the multiplication of either 8 or 10.
source:- Department of Agricultural Engineering
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