Showing posts with label BEAM. Show all posts
Showing posts with label BEAM. Show all posts
Tuesday, 7 August 2012
Monday, 19 December 2011
LOADING IN BEAMS
BEAMS & CLASSIFICATION OF BEAMS
BEAM: A beam is a structure generally a horizontal structure on rigid supports and it carries mainly vertical loads. Therefore, beams are a kind of load bearing structures.
Depending upon the types of supports beams can be classified into different catagories.
CANTI-LEVER BEAMS:
A beam can be at stable equilibrium with a single fixed support at one end and the other end remains free, which is called as the free end while the other end is known as fixed end. This kind of beam is known as Canti lever beam. The fixed joint at the fixed end produces a horizontal, a vertical reactions and a reaction moment at the fixed end.
SIMPLE SUPPORTED BEAM:
A beam supported as just resting freely on the walls or columns at its both ends is known as simply supported beam.
There will be two vertically upward reactions at the ends of a simply supported beam. A simply supported beam can not resist any horizontal load component.
OVER HANGING BEAM:
A beam having its end portion or both the end portions extended in the form of a canti-lever beyond the support or supports is called as over hanging beam.
Above those beams are statically determinate. It means that those beams can be analysed applying the conditions of equilibrium. We can determine the values of the unknown reactions.
There are beams which can not be analysed applying the conditions of equilibrium of coplanar forces. These beams are also known as Statically indeterminate structures.
Those types of beams can be classified as,
Fixed beams and Continuous beams.
Fixed Beam: A beam having two fixed joints at the both ends is called fixed beam.
Continuous Beam: The beam which is at rest on more than two supports is called as continuous beam.
What are different types of supports?
There are four types of supports,
Depending upon the types of supports beams can be classified into different catagories.
CANTI-LEVER BEAMS:
A beam can be at stable equilibrium with a single fixed support at one end and the other end remains free, which is called as the free end while the other end is known as fixed end. This kind of beam is known as Canti lever beam. The fixed joint at the fixed end produces a horizontal, a vertical reactions and a reaction moment at the fixed end.
SIMPLE SUPPORTED BEAM:
A beam supported as just resting freely on the walls or columns at its both ends is known as simply supported beam.
There will be two vertically upward reactions at the ends of a simply supported beam. A simply supported beam can not resist any horizontal load component.
OVER HANGING BEAM:
A beam having its end portion or both the end portions extended in the form of a canti-lever beyond the support or supports is called as over hanging beam.
Above those beams are statically determinate. It means that those beams can be analysed applying the conditions of equilibrium. We can determine the values of the unknown reactions.
There are beams which can not be analysed applying the conditions of equilibrium of coplanar forces. These beams are also known as Statically indeterminate structures.
Those types of beams can be classified as,
Fixed beams and Continuous beams.
Fixed Beam: A beam having two fixed joints at the both ends is called fixed beam.
Continuous Beam: The beam which is at rest on more than two supports is called as continuous beam.
What are different types of supports?
There are four types of supports,
- (i) Simple Supports,
- (ii) Roller Supports,
- (iii) Hinged Supports
- (iv) Fixed Supports.
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