Transverse arch

A series of transverse arches sitting on tops of the columns on the sides of the nave was typical in the churches of Romanesque architecture (common since Carolingian times[1]).

By analogy, the term is also used to describe the transverse ribs of a groined vault and for any crosswise arch in modern buildings.

[2] An arc that goes in transverse direction, but carries an exposed wall on top, dividing the vault into compartments, is called a diaphragm arch.

[1] In the historical buildings, the transverse arches provide support for purlins and roof ridge beams.

[3] The springings of the arch are typically pinned to supports using wooden or steel ties, but the bulk of lateral thrust is terminated in the abutments.