BEAM AND DIFFERENT TYPES OF BEAM

1. SEMINAR
ON
BEAM
BY
NAME –MANISH RAJ
ROLL NO.-23
BRANCH-CIVIL ENGINEERING

2. BEAM
A beam is a structural element that primarily
resists loads applied laterally to the beam's axis. Its mode of
deflection is primarily by bending. The loads applied to the
beam result in reaction forces at the beam's support points.
The total effect of all the forces acting on the beam is to
produce shear forces and bending moments within the
beam, that in turn induce internal stresses, strains and
deflections of the beam. Beams are characterized by their
manner of support, profile (shape of cross-section), length,
and their material.

3. Beams are traditionally descriptions of building or civil
engineering structural elements, but any structures such as
automotive automobile frames, aircraft components, machine
frames, and other mechanical or structural systems contain beam
structures that are designed to carry lateral loads are analyzed in a
similar fashion.

4. Types of Beams:
Beams can be classified into many types based on three main criteria.
They are as follows:
1. Based on geometry:
a. Straight beam – Beam with straight profile
b. Curved beam – Beam with curved profile
c. Tapered beam – Beam with tapered cross section
d. Based on the shape of cross section:
i) I-beam – Beam with ‘I’ cross section
ii) T-beam – Beam with ‘T’ cross section
iii) C-beam – Beam with ‘C’ cross section

5. 2. Based on equilibrium conditions:
a. Statically determinate beam – For a statically determinate
beam, equilibrium conditions alone can be used to solve
reactions.
b. Statically indeterminate beam – For a statically indeterminate
beam, equilibrium conditions are not enough to solve reactions.
Additional deflections are needed to solve reactions.
3. Based on the type of support:Simply supported beam
a. Cantilever beam
b. Overhanging beam
c. Continuous beam
d. Fixed beam

6. Classification of beams based on the
type of support is discussed in detail
below:
1. Simply supported beam:
A simply supported beam is a type of beam that
has pinned support at one end and roller support
at the other end. Depending on the load applied,
it undergoes shearing and bending. It is the one of
the simplest structural elements in existence.

8. 2. Cantilever beam:
A cantilever beam is fixed at one end and free at
other end. It can be seen in the image below

9. 3. Overhanging beam:
A overhanging beam is a beam that has one or
both end portions extending beyond its
supports. It may have any number of
supports. If viewed in a different perspective,
it appears as if it is has the features of simply
supported beam and cantilever beam.

11. 4. Continuous beam:
A continuous beam has more than two
supports distributed throughout its length. It
can be understood well from the image
below.

12. 5. Fixed beam
• As the name suggests, fixed beam is a type of beam
whose both ends are fixed.

13. THE END