Beam - Weebly
Beam
It is a structural member which carries an external force that is inclined to its axis. The beam will consider as a horizontal and straight member, the forces that are applying on it are considered to be vertical.
Classification of Beams:
Beams can be classified as following;
• Statically Determinant Beams
• Statically Indeterminant Beams
Statically Determinant Beams:
The beams in which the numbers of equations are enough to calculate the unknown reaction forces are called statically determinant beams.
Statically Indeterminant Beams:
The beams in which the numbers of equations are not enough to calculate the unknown reaction forces is called statically determinant beams. So for calculating the unknown reactions we have to use the technique of section method.
Types of Beams:
There are six types of beams, which are following
• Simply Supported Beams
• Cantilever Beam
• Overhanging Beam
• Propped Cantilever Beam
• Fixed Beam
• Continuous Beam
In these above type simply supported, cantilever and overhanging beams are the examples of statically determinant beams and the remaining are the examples of statically indeterminant beams.
Simply Supported Beam:
A beam which is supported on two supports and able to slide at least at one of its support is called as simply supported beams.
These beams are the least strong beams and their applications are restricted to only small load.
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Overhanging Beam:
A simply supported beam which is extended beyond at least one of the supports and the load applied on at least one of the extended portion is known as overhanging beam.
The example of that type of beam is the structure of bridges.
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Cantilever Beam:
A beam which is fixed at one of its end and totally free from the other end is known as cantilever beam.
The example of cantilever beam is the corbel of balconies.
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Propped Cantilever Beam:
A cantilever beam which has an extra support at free end is known as propped cantilever beam.
[pic]
Continuous Beam:
A beam which is supported on more than two supports is called continuous beam. Bridges and columns are the normal example of the continuous beam. Similarly the front view of the plane is also termed as continuous beam.
Fixed Beam:
A beam which is fixed from both ends is termed as fixed beam. These beams have the maximum capacity of bearing the load.
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