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Steel push piers system for Foundation Stabilization
Steel push piers system for Foundation Stabilization
Bracket:
Weldment manufatured from 1/4”,3/8” and 1/2” ASTM A36 steel Plate
Cap Plate:
1”x5”x9.0” ASTM A572 Grade 50 with confining ring welded to one side.
Bracket Hardware:
3/4”X16” long all thread rod
Grade B7, tensile strength=125ksi (min)
Electrozinc plated per ASTM b633.
Pier Tube:
2.875” x0.155” x36”long triple coated in-line galvanized ASTM A500 Grade C
Yield strength=50ksi(min)
Tensile strength=55ksi(min)
Pier Tube Coupler:
2.25”x0.18”x6” long
Pier Starter Tube:
Pier tube section with 3.376” tricition reduction collar
pressed around leading end
External Sleeve:
3.5”x0.216”x30” or 48” long with welded collar or turned fare at one end
ASTM A500 Grade B or C
Yield strength=50ksi(min)
Tensile strength=62ksi(min)
| Shaft Size (inch) | Wall Thick(inch) | Extension Length (ft) |
| 2.875 OD. | 0.262 | 3ft/5ft/7ft/10ft |
| 3.00 OD. | 0.238 | 3ft/5ft/7ft/10ft |
| 3.50 OD. | 0.254/0.300 | 3ft/5ft/7ft/10ft |
| 4.50 OD. | 0.290/0.337 | 3ft/5ft/7ft/10ft |
| 5.50 OD. | 0.362 | 3ft/5ft/7ft/10ft |
| 6.625 OD. | 0.562 | 3ft/5ft/7ft/10ft |
Helical piles, also known as anchors, piers or screw piles, are steel deep foundation solutions used to secure new or repair existing foundations. Consisting of a extension shaft with one or more helix-shaped bearing plates, commonly referred to as blades or flights, welded to the lead section.
Extension shafts, with or without additional helix blades, are used to extend the pile to competent load-bearing soils and to achieve design depth and capacity.
Brackets are used at the tops of the piles for attachment to structures, either for new construction or retrofit applications.
Helical piles have been used all over the world to secure residential and commercial buildings.Helical piles are installed at intervals between the footing forms and tied into the rebar grid work prior to pouring concrete. The piles are extended to depths attaining the installing torque that correlates with the required load bearing capacity.
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