Introductory lecture on Shear Force by Mainak Biswas

1. SHEAR FORCE & BENDING MOMENT
PREPARED BY: MAINAK BISWAS
T.I.C, CIVIL ENGINEERING DEPARTMENT
KINGSTON POLYTECHNIC COLLEGE

2. SHEAR FORCE
• When equal and opposite forces act tangentially on
any cross-sectional plane of a body tending to slide
one part of the body over the other part then the
body is said to be in state of shear.

3. BENDIND MOMENT
• MOMENT- When a object is subjected to a equal and
opposite forces and it tends to rotate in clockwise or anti-
clockwise direction then it is called couple system; and the
value of moment is = force x perpendicular distance
between the forces(couple arm)
= P X l

4. BENDING MOMENT
• The moment which tries to bend the object is
called Bending Moment.
Here the value of Bending Moment = P X L

5. TYPES OF SUPPORT
1. FIXED SUPPORT
2. HINGED SUPPORT
3. ROLLER SUPPORT

6. FIXED SUPPORT
It can resists vertical load,Horizontal Load and Moment

7. HINGED SUPPORT
It can resists vertical load, Horizontal Load

8. ROLLER SUPPORT
It can resists vertical load Only

9. TYPES OF BEAM
1. CANTILEVER BEAM
2. SIMPLY SUPPORTED BEAM
3. FIXED BEAM
4. OVER HANGING BEAM
5. PROPERD CANTILEVER BEAM
6. CONTINOUS BEAM

10. CANTILEVER BEAM
One end is fixed and other end is free

11. SIMPLY SUPPORTED BEAM
One end is supported by Hinged support
and the end is roller support

12. FIXED BEAM
Both ends are supported by fixed support

13. OVER HANGING BEAM
Some portion of the beam is over hang from the
beam

14. PROPERD CANTILEVER BEAM
One end is fixed and the over is roller support

15. CONTINOUS BEAM
More than two supports are there present

16. TYPES OF LOADING
1. POINT LOAD OR CONCERNTRATED
LOAD
2.UNIFORMILY DISTRIBUTED LOAD(UDL)
3.UNIFORMILY VARYING LOAD(UVL)

17. THANK YOU