Podcast
Questions and Answers
What is a keystone?
What is a keystone?
The wedge-shaped, often embellished voussoir at the crown of an arch, serving to lock the other voussoirs in place.
What is a voussoir?
What is a voussoir?
Any of the wedge-shaped units in a masonry arch or vault, having side cuts converging at one of the arch centers.
What is the extrados of an arch?
What is the extrados of an arch?
The exterior curve, surface, or boundary of the visible face of an arch.
What is an impost?
What is an impost?
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What is the intrados of an arch?
What is the intrados of an arch?
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What does rise refer to in an arch?
What does rise refer to in an arch?
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What is a clear span?
What is a clear span?
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What is an abutment?
What is an abutment?
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Study Notes
Arch Diagram Components
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Keystone
- A wedge-shaped voussoir located at the crown of an arch
- Locks other voussoirs in place, essential for stability
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Voussoir
- Wedge-shaped units forming a masonry arch or vault
- Sides converge towards the arch's center
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Extrados
- The outer curve or surface of an arch's visible face
- This element provides structural support and aesthetic appeal
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Impost
- The uppermost section of an abutment
- Often shaped as a block, capital, or molding from which the arch begins
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Intrados
- The inner curve or surface of an arch
- Forms the concave underside that contributes to the arch's shape
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Rise
- The vertical distance from the spring line to the apex of the intrados
- It is a measure of the arch's height and curvature
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Clear Span
- The unobstructed distance between the supports of an arch
- Essential for determining the space available under the arch
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Abutment
- Structural component that supports the thrust from an arch or vault
- Plays a crucial role in maintaining the integrity and stability of the arch structure
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Description
Test your knowledge on the essential components of an arch with this quiz. Explore key terms like keystone, voussoir, and extrados. Perfect for architecture students or enthusiasts eager to learn the fundamentals of arch design.
