scheme arch
Noun: - A structural element: A "scheme arch" is a type of arch in architecture and construction where the vertical height (the rise) is less than half of its horizontal width (the span).
This is a technical term used primarily in architecture, engineering, and construction to describe a specific, low-profile arch shape. - The bridge's design featured a wide, shallow scheme arch to allow for easy passage below. - For this opening, a scheme arch is more suitable than a taller Gothic arch.
- The term is often used in technical specifications, design documents, and historical descriptions of buildings.
- It describes a geometric property (rise-to-span ratio) rather than a specific architectural style.
- Arch (n): A curved symmetrical structure spanning an opening and typically supporting the weight of a bridge, roof, or wall above it.
- Segmental arch (n): A type of arch that is a segment of a circle; many scheme arches are segmental in form.
- Flat arch (n): An arch with a very slight curve; a scheme arch can be considered a type of flat or shallow arch.
- Shallow arch
- Low-rise arch
The term "scheme arch" is highly specific and does not have common alternative meanings outside its architectural definition. The word "scheme" alone has different meanings (e.g., a plan, a plot), but in this compound term, it functions as a modifier describing the arch's proportions.
- an arch whose height is less than half its width