waffle floor

waffle slab

A concrete slab which is reinforced by ribs in two directions, forming a waffle-like pattern.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Geotechnical works were designed with Hamza Associates of Cairo, with whom Snohetta set up a joint venture partnership, Snohetta Hamza, to run the whole operation, The columns carry the concrete frame bearing the waffle floors, and rise to the channelled precast roof beams, which also act as service ducts.