Ribbed Slab

For longer spans, the weight of a solid slab adds to both the frame and foundation costs. By using a ribbed slab, which reduces the self-weight, large spans can be economically constructed. The one-way spanning ribbed slab provides a very adaptable structure able to accommodate openings.

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As with beam and slab floors, the ribs can either span between band beams formed within the depth of the slab or between more traditional down stand beams. For long two-way spans, waffle slabs give a very material-efficient option capable of supporting high loads.