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APPENDIX 4D
SMARTJACK® SYSTEMS
Chapter 4
Miscellaneous Structural Support Products
Typical Basement Detail
Note:
Threaded insert is welded to tube for basement applications.
Allowable Capacity
The allowable system capacity of the assembled SmartJack steel components is 30 kips (30,000
pounds). Axial compression tests completed at an independent laboratory on the assembled
SmartJack system, with and without a precast concrete footing, resulted in ultimate values between
56 kips and 90 kips.
While the rigidity and strength of the SmartJack components benefit installation and overall product
stability, the allowable load applied to the SmartJack system will nearly always be limited by the bearing
capacity of the existing soil. The well-compacted crushed stone or recycled concrete base is a proven
method to increase support for the higher bearing pressure condition immediately below the concrete
footing, and then to absorb and distribute lower pressures to the existing soils. Should settlement of the
SmartJack system occur, adjustments are made easily by extending the all-thread rod.
The SmartJack is designed to support axial compression loads only. The SmartJack should not
be used in applications where the system is intended to resist lateral loads.
