Jack Arch
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Jack Arch
Jack Arch is a type of masonry arch that is commonly used in architecture and construction. It is a three-dimensional arch that spans a space, usually between two columns or walls. The arch is constructed using a series of rectangular-shaped stones called jackstones, which are placed between the arch’s extrados and the wedge-shaped stones called voussoirs that form the visible face of the arch. The jackstones are arranged in an alternating pattern with the voussoirs, and together they provide the arch with its strength and stability. One of the key advantages of the Jack Arch is its ability to span large distances, making it a popular choice for the construction of bridges, tunnels, and other large-scale structures. The arch’s strength and durability also make it well-suited for these types of projects. Additionally, the Jack Arch offers more flexibility in design than traditional arches, allowing architects and builders to create a variety of shapes and patterns. Despite its many advantages, the Jack Arch is less structurally sound than traditional arches, and as a result, it requires careful construction and maintenance to ensure its stability and longevity. The arch must be built on a solid foundation and carefully constructed to ensure that the weight of the structure is evenly distributed. Additionally, the arch must be regularly inspected and maintained to prevent cracking or other damage that could compromise its structural integrity. Overall, the Jack Arch is a versatile and durable type of arch that has been used in architecture and construction for centuries. Its ability to span large distances and its flexibility in design make it a popular choice for a wide range of projects, from bridges and tunnels to buildings and monuments.
Masonry arch, architecture, construction, jackstones, voussoirs, strength, durability, flexibility, design, large-scale structures, stability, maintenance
CITATION : "Joshua Wood. 'Jack Arch.' Design+Encyclopedia. https://design-encyclopedia.com/define/jack-arch?E=257100 (Accessed on October 14, 2026)"
Jack Arch
The Jack Arch is a form of arch commonly used in architecture. It is a three-dimensional arch that consists of a curved section of masonry or concrete that spans a space, usually between two columns or walls. The jack arch is typically constructed with a series of stones or concrete blocks, but can also be made from pre-cast concrete or steel. The jack arch is less structurally sound than a traditional arch, but offers more flexibility in design and can be used to create a variety of shapes and patterns. Its flexibility and ease of construction make it a popular choice in architecture and construction.
Architectural, Masonry, Structural, Concrete, Design.
Jack Arch
Masonry arches are a distinctive type of architectural structure, and the Jack Arch is a particular form of this type of structure. It is an arch with an outwardly curved extrados, which is supported at its center and along its sides by a series of alternating jackstones and voussoirs. Jackstones are rectangular-shaped stones that are placed between the arch’s extrados and the voussoir, while the voussoir is the wedge-shaped stone that forms the visible face of the arch. The Jack Arch is a structural form that is capable of spanning large distances, and is commonly used in the construction of bridges, tunnels, and other large-scale structures. Its strength and durability make it a popular choice for these types of projects.
Curved, Extrados, Jackstones, Voussoirs, Spans.
Jack Arch on Design+Encyclopedia
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