Arcuate structural systems (compare with trabeate structural systems) in architecture is where arches and their derivatives of vaults, groins and suchlike form the system whereby the mass of the superstructure is transferred to the ground. It was developed by the ancient Romans and brought to its zenith in Islamic and Gothic architecture. In South Africa it was employed in many of Gothic Revival churches (see Metropolitan Methodist Church) an many of the neoclassical buildings of the early twentieth century, most significantly in the construction of the Union Buildings.
Drawings by Frank Gaylard from: Fisher, Roger C. 1992. Visual Lexicon of the South African Dwelling. Cape Town: Unibook. p, 11.