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What is the down-stand beam called at an edge of a surface bed or raft foundation? It is not exactly a grade beam or stem wall. It is more like a toe.

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grfrazee
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SlydeRule
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2 Answers2

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What is the down stand beam called at an edge of a surface bed or raft foundation? It is not exactly a grade beam or stem wall. It is more like a toe.

This is probably a regional nomenclature thing, since I'm seeing quite a few ways for naming this. If you call it a grade beam, I don't think anyone will take it amiss.

Examples below of different ways of naming it.

Grade Beam
 grade beam
(source)

Exterior Beam
 exterior beam
(source)

Stem Wall or Thickened-Edge Slab
 stem wall
(source)

Beam Strip
 enter image description here
(source)

grfrazee
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0

It is an "edge beam", or "grade beam", in a raft foundation, and a "downturn" of a slab-on-grade. The former is a structural component, usually spanning between columns, thus more massive and heavily reinforced. The latter is a strip footing or purposed to stiffen the slab edge and prevent outward migration of the subgrade.

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r13
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