Snap Tie and Wedges in Concrete Plywood Forming System
Snap Ties and brackets, with 3/4” plywood and 2x4 lumber, create a simple and effective forming system.
Job-built forming with 3/4” plywood, 2x4 lumber, Snap Ties and Jahn-style Brackets is popular on many construction sites.
Though only a few components are required, time and labor is necessary to plan, mark, cut and drill the plywood.
Snap Tie sizes from 6”to 72”according to the wall size. Snap Ties are different with the END. Short-end (SE) Snap Ties are available for conditions with single walers on both sides. Long-end (LE) Snap Ties are available for conditions with waler/strongbacks on both sides. Odd-end (OE) Snap Ties are available for conditions with a single waler on one side and waler/strongback on the other.
Measurement is also different with using the different end of Snap Tie. Short-end (SE) Snap Ties measure 4-3/4” at each end, plus the wall thickness. Long-end (LE) Snap Ties measure 8-1/4” at each end, plus the wall thickness. Odd-end (OE) Snap Ties measure 4-3/4” at one end and 8-1/4” at the other end, plus the wall thickness.
Every Snap Tie includes two 1”or 2” plastic cones. The plastic cones set the wall dimension and cover the plywood hole. After the plywood is stripped, the plastic cone and exposed tie end are removed with a twist.
Except the Snap Tie, Jahn A & C Bracketis required. They can simply separate from each other from the feature. Like the name, Jahn A Bracket with a steel plate like “A”. And Jahn C Bracket is with the metal plate like “C”.
Snap Tie Wedgesare also different with weight and feature.