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Questions and Answers
Which type of load is concentrated at a single point?
Which type of load is concentrated at a single point?
- Concentrated or Point Load (correct)
- Uniformly Varying Load (UVL)
- Distributed Load
- Uniformly Distributed Load (UDL)
A cantilever beam is fixed at both ends.
A cantilever beam is fixed at both ends.
False (B)
What is a bending moment?
What is a bending moment?
The algebraic sum of the moments of all the forces acting to the right or left side of a beam section.
A beam that is supported at both ends and displays no fixity is called a __________ beam.
A beam that is supported at both ends and displays no fixity is called a __________ beam.
What does a shear force diagram (SFD) represent?
What does a shear force diagram (SFD) represent?
Define a uniformly varying load.
Define a uniformly varying load.
Match the following types of beam with their description:
Match the following types of beam with their description:
If the resultant force to the left of a section is upwards, the shear force at that section is considered __________.
If the resultant force to the left of a section is upwards, the shear force at that section is considered __________.
What is the shear force at point B of a cantilever beam with a point load at the free end?
What is the shear force at point B of a cantilever beam with a point load at the free end?
The bending moment at the free end of a cantilever beam with a point load is zero.
The bending moment at the free end of a cantilever beam with a point load is zero.
What is the bending moment at the fixed end (A) of a cantilever beam with a point load?
What is the bending moment at the fixed end (A) of a cantilever beam with a point load?
The shear force at any section x under a uniformly distributed load is equal to the __________ acting on the right portion of the section.
The shear force at any section x under a uniformly distributed load is equal to the __________ acting on the right portion of the section.
What is the bending moment at the fixed end (A) of a cantilever beam with a uniformly distributed load?
What is the bending moment at the fixed end (A) of a cantilever beam with a uniformly distributed load?
Describe the shape of the shear force diagram for a cantilever beam under a point load.
Describe the shape of the shear force diagram for a cantilever beam under a point load.
The bending moment varies according to a parabolic law at any section of a cantilever beam under a uniformly distributed load.
The bending moment varies according to a parabolic law at any section of a cantilever beam under a uniformly distributed load.
Match the points with their corresponding shear force values for the cantilever beam described:
Match the points with their corresponding shear force values for the cantilever beam described:
Flashcards
What is a beam?
What is a beam?
A horizontal structural member that supports loads acting perpendicular to its length.
What is a column?
What is a column?
A vertical structural member that supports loads acting axially along its length.
Define shear force.
Define shear force.
The algebraic sum of forces acting vertically on one side of a beam section.
Define bending moment.
Define bending moment.
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What is a shear force diagram (SFD)?
What is a shear force diagram (SFD)?
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What is a bending moment diagram (BMD)?
What is a bending moment diagram (BMD)?
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What is a concentrated or point load?
What is a concentrated or point load?
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What is a uniformly distributed load (UDL)?
What is a uniformly distributed load (UDL)?
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Shear Force
Shear Force
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Bending Moment
Bending Moment
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Shear Force Diagram (SFD)
Shear Force Diagram (SFD)
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Bending Moment Diagram (BMD)
Bending Moment Diagram (BMD)
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Convention for Shear Force Diagram
Convention for Shear Force Diagram
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Convention for Bending Moment Diagram
Convention for Bending Moment Diagram
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Cantilever Beam
Cantilever Beam
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Point Load
Point Load
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Study Notes
Shear Force & Bending Moment
- Beam: A horizontal structural member
- Column: A vertical structural member
- Parallel Loads: Forces acting along the same direction on a column, passing through the axis of the column
- Shear Force: The algebraic sum of the vertical forces acting on either side of a section of a beam
- Bending Moment: The algebraic sum of the moments of all forces acting on either side of a section of a beam
- SFD (Shear Force Diagram): A diagram showing the variation of shear force along the length of a beam
- BMD (Bending Moment Diagram): A diagram showing the variation of bending moment along the length of a beam
Types of Beams
- Cantilever Beam: Fixed at one end and free at the other
- Simply Supported Beam: Supported at both ends
- Over-hanging Beam: A beam that extends beyond the supports
- Fixed Beam: Fixed at both ends
- Continuous Beam: Supported on more than two supports
Types of Loads
- Concentrated Load (Point Load): A load that acts at a specific point, considered to act over a small area
- Uniformly Distributed Load (UDL): A load spread uniformly over a beam
- Uniformly Varying Load (UVL): A load that varies uniformly from one end to the other end of the beam.
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