Installation
- Stump size shall be appropriate to footing size.
- The height above ground in accordance with table supplied.
- Stump embedment in foundation material should be at least 0.3 of the stump length.
Installation for Concrete Stumps
Stump Bracing
Where solid load bearing masonry walling is provided the floor may be assumed to be sufficiently braced.
Bracing shall be provided where:
- Stump height above ground exceeds 15 times the minimum face width.
- Embedding in the foundation is less than 0.3 of the height above ground level or 450mm whichever is the greater.
Stump Length for Pad Size
| Safe Bearing Capacity of Founding Soil (kPa) | Effective Height Above Ground (mm) | |||||||
|---|---|---|---|---|---|---|---|---|
| Pad Size 230x230x100 |
Pad Size 300x300x150 |
Pad Size 350x350x200 |
Pad Size 430x430x250 |
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| 75mm Stump | 85mm Stump | 75mm Stump | 85mm Stump | 75mm Stump | 85mm Stump | 75mm Stump | 85mm Stump | |
| 75kPa | 1640 | 2100 | 1160 | 1490 | 1000 | 1290 | 820 | 1050 |
| 100kPa | 1400 | 1800 | 1000 | 1275 | 870 | 1100 | 710 | 900 |
| 150kPa | 1150 | 1490 | 820 | 1080 | 700 | 910 | 575 | 740 |