ABSTRACT
Barrel vaults are well suited to covering rectangular areas, since structurally the arch form reduces stresses and thicknesses in the transverse direction. The curve of the cross-section of a barrel is usually a semicircle. Other curved sections can be used such as an ellipse, a cycloid, or a sector of a circle as shown below. Strictly speaking, barrel shells span between end-plates, and barrel vaults are supported along their longitudinal edges. Types of barrel vaults. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315042794/9ea7e050-bfcd-4e93-9c13-6f9a9d99f4d1/content/fig17_1_C.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
