The Grip-Tite Foundation Push Pier is used to correct foundation settlement.  The steel tubes used in the Push Pier System utilize weight of the structure to hydraulically drive the piers to bedrock or other competent load bearing strata to stabilize and/or correct failing foundations.

Advantages

  • End-bearing pier that does not rely on friction for capacity
  • Each pier load tested during installation
  • Ability to reach greater depths using a starter tube with friction collar
  • High-strength steel pier sections and sleeved couplings have high resistance to bending
  • Long life span, resistance to corrosion (design life in moderate soils more than 100 years)
  • Available with hot-dipped galvanized coating for added corrosion resistance

Products

Push Pier System

Our Push Pier tube are manufactured from high strength/low alloy hot rolled steel. Push Pier structural tubes are offered in 3" diameter. Grip-Tite offers these tubes in two thicknesses; our Standard Duty is 0.12" and our Heavy Duty is 0.188"

Standard Bracket

Heavy Duty Bracket

Flat Bracket

Extensions


Specifications

Pier Tube

  • 3.0-inch Outside Diameter (O.D.) x 0.120-inch wall tube steel, ultimate tensile strength = 80,000 psi (min.), yield tensile strength = 70,000 psi (min.)

Tube Reinforcing Insert

  • 2.75-inch O.D. x 0.120-inch wall tube steel, ultimate tensile strength = 80,000 psi (min.), yield tensile strength = 70,000 psi (min.)

Foundation Bracket

  • Bracket Tube
    3.875-inch O.D. x 3.125-inch Inside Diameter (I.D.) x 10-inch long DOM mechanical steel tubing conforming to ASTM 513 ' Type 5 / Grade 1026. Ultimate tensile strength = 100,000 psi (min.), yield tensile strength = 90,000 psi (min.)

  • Angle Bracket
    0.5-inch thick flat plate conforming to ASTM A-36 hot rolled steel bent to form a 90 degree angle with equal sides of approximately 8 inches. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)

  • Bracket Support Strap
    0.375-inch thick x 3 inches wide x 21.25 inches flat bar conforming to ASTM A-36 hot rolled steel which is bent into a "horseshoe" shape around the bracket tube. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)

  • Top Plate
    0.75-inch thick x 5.5 inches wide x 9.5 inches long conforming to ASTM A-36 hot rolled steel. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)

  • Cap Plate
    1.0-inch thick x 4.0 inches wide x 8.5 inches long conforming to ASTM A-36 hot rolled steel. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)

  • Weld
    E71T1, minimum tensile strength = 71,000 psi ' peformed by AWS certified welder

  • Threaded Rod
    0.75-inch diameter x 12 inches long ASTM A311 ' Class B / Grade 8 Zinc Plated. Ultimate tensile strength = 150,000 psi, yield tensile strength = 130,000 psi

Capacity

  • Foundation Pier System, which includes pier tube, tube reinforcing insert and foundation bracket, tested by an Independent Laboratory to peak loads exceeding 70,000 pounds (70 kips).


See ICC-ES Legacy Report #22-03 prepared by the International Code Council