Underpinning Brackets
Standard-Duty Underpinning Brackets for Helical Pile Foundation System
For use with 1 1/2" and 1 3/4" square shaft anchors, as specified below, each bracket is identified by the size stamped on the vertical gusset. Brackets also may be used in conjunction with Uplift-Restraint Bracket.
Bracket comes complete with the hardware required for assembly of bracket; does not include concrete anchor bolts.
The lifting assembly, consisting of the underpinning bracket and jacking tool, is designed to lift with hydraulic jack assist as shown below. However, if jack assist is not available, lifting can be done with the bolts of the bracket. The recommended method is to use a hydraulic jack with a load gauge to avoid exceeding the ratings of the brackets.
Bracket as applied on foundation footing
black section depicts lifting surface of bracket under a foundation
U.S. Patents 5,011,336; 5,120,163; 5,213,448
Installation Tool
NOTE: Hydraulic jack not furnished| Jacking Tool C150-0117 |
Jacking Tool assembled to bracket |
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| Clearance between two flat washers | 4 3/4" |
| Clearance between bolt couplings | 5" |
| Maximum compressed height of jack | 11" |
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