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What is the primary function of beams in a skeleton system?
What is the primary function of beams in a skeleton system?
Beams are a component of the skeleton system used primarily for decoration.
Beams are a component of the skeleton system used primarily for decoration.
False
Name an essential characteristic of beams used in building construction.
Name an essential characteristic of beams used in building construction.
Strength
In building construction, beams are considered a key component of the __________ system.
In building construction, beams are considered a key component of the __________ system.
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Match the following types of beams with their respective descriptions:
Match the following types of beams with their respective descriptions:
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What primarily supports the load of occupants in an RCC framed structure?
What primarily supports the load of occupants in an RCC framed structure?
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The load in a RCC framed structure is transferred directly from the column to the beam.
The load in a RCC framed structure is transferred directly from the column to the beam.
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In a normal load distribution in a water tank structure, what is the function of the beams?
In a normal load distribution in a water tank structure, what is the function of the beams?
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In an RCC framed structure, the load acts on the slab, which then transfers the load to the ______.
In an RCC framed structure, the load acts on the slab, which then transfers the load to the ______.
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Match the components of an RCC framed structure with their functions:
Match the components of an RCC framed structure with their functions:
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What type of beam is used in the porch design mentioned?
What type of beam is used in the porch design mentioned?
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The staircase mid landing is part of the porch structure.
The staircase mid landing is part of the porch structure.
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What is the primary material mentioned for the toilet construction?
What is the primary material mentioned for the toilet construction?
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The _____ is used to support the porch beams.
The _____ is used to support the porch beams.
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Match the following components with their descriptions:
Match the following components with their descriptions:
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What is the primary purpose of a plinth beam in a building structure?
What is the primary purpose of a plinth beam in a building structure?
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The sill beam is located above the windows in a building.
The sill beam is located above the windows in a building.
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List two types of beams that are constructed above the plinth in a building.
List two types of beams that are constructed above the plinth in a building.
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The _____ beam is typically placed below the window.
The _____ beam is typically placed below the window.
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Match the following beams with their specific functions:
Match the following beams with their specific functions:
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What type of support prevents any moment from acting on the support?
What type of support prevents any moment from acting on the support?
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Roller support allows for axial (horizontal) force to act on the member.
Roller support allows for axial (horizontal) force to act on the member.
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What is the main function of hinged support in structural applications?
What is the main function of hinged support in structural applications?
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A roller support is provided to ensure there are no __________ forces on the member.
A roller support is provided to ensure there are no __________ forces on the member.
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Match the following types of supports with their characteristics:
Match the following types of supports with their characteristics:
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What type of support is used at one end of a continuous beam?
What type of support is used at one end of a continuous beam?
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A continuous beam has only one type of support throughout its span.
A continuous beam has only one type of support throughout its span.
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What is the main characteristic of a continuous beam's end support?
What is the main characteristic of a continuous beam's end support?
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A continuous beam is defined as having a hinged support at one end and __________ supports in the entire span.
A continuous beam is defined as having a hinged support at one end and __________ supports in the entire span.
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Match the supports with their functions in a continuous beam:
Match the supports with their functions in a continuous beam:
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Study Notes
Elements of Skeleton System: Beams
- Beams are horizontal structural components spanning between supports.
- Beams serve various purposes:
- Connecting columns
- Supporting masonry above
- Supporting slabs (most common)
- Supporting slabs below (e.g., porches, sunken toilet areas)
- Supporting other beams
- Supporting building accessories (electrical fixtures, pipes, etc.)
- Supporting overhead water tanks
- Normal load distribution in reinforced concrete (RCC) structures involves the slab transferring loads to the beam, which then transfers the load to columns.
- Beam geometry is typically rectangular, with depth consistently greater than width for strength.
- Standard dimensions exist, e.g., beam width = 115 mm, depth = 75 mm
- Beam design criteria:
- The maximum stress on beams cannot exceed safe stress limits for the material.
- Deflection must not exceed specified limits.
Types of Beams
-
Based on position relative to the foundation:
- Tie beams (first beam framework constructed)
- Ground beams
- Plinth beams (laid above the foundation)
-
Based on position above the plinth:
- Sill beams (below windows)
- Band beams
- Lintels
- Roof beams (support floor or roof loads)
-
Hidden beams: Not visible after slab construction; receive wall loads and transfer them to main beams (e.g., sunk slabs, porches).
-
Inverted beams: Beams positioned beneath a slab (used in situations like sunk slabs and porches).
-
Coping beams: Placed at the top of a masonry parapet; protect bricks and provide bracing to the wall.
Classification of Beams
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Based on support pattern:
- Simply supported beams: rest on two supports
- Cantilever beams: fixed at one end and free at the other
- Continuous beams: supported by more than two supports
- Overhanging beams: extend beyond supports.
Further Beam Types
- Pergola: A set of beams with close spacing, typically above a terrace that do not have a slab above them.
- Grid beams: Supported beams in perpendicular directions.
- Portal beams: Beam with integrated beam and columns.
- Arches: Compression members, with concepts of pre-stressed concrete; apex bracket, rafter, knee bracket, haunch, footing bracket are key components
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Description
Test your knowledge on the role and characteristics of beams in civil engineering, particularly in RCC framed structures. This quiz covers fundamental functions, load distribution, and types of beams used in construction. Perfect for students studying structural engineering or related fields.
