G-2 Select Concrete Forming Systems Flashcards
What is a footing?
A concrete member is used under a foundation wall or column to spread the supported weight of the building over a larger area.
What is a Foundation wall?
A concrete member that is supported by the footings and supports the above-grade portion of the building.
Fly form?
A fly form is a form that is moved with a crane.
Form Sheathing?
Form sheathing directly supports the fresh concrete and must be able to resist the force without significant deflection.
Stud?
Upright members that support the form sheathing. The spacing of the stud is governed by the allowable deflection of the form sheathing and the rate of pour.
Waler?
Horiziontal members that support the form sheathing or studs. If the form system uses single-waler brackets then the walers support the form sheathing.
Tie?
A is the load from the waler, that is transferred to the ties by the waler.
Wedge?
A wedge is used to secure snap ties.
Strongback?
Used to support and line up horizontal walers.
Brace?
Used to hold the top of the forms in place and in most cases to keep wall forms plumb.
Stake?
Used to hold the bottom of the forms in place and to set elevations of forms. Stakes are also used to anchor the bottom of braces.
Cleat?
Normally used to hold the top of the footing forms or wall forms the correct distance apart and function as a low strength tie.
Spacer?
Used to hold forms the correct distance apart. Can be used at the bottom of walls or at the top.
Kicker?
Vertical 2 by 4 to allow one set of walers to reinforce the other set of walers.
Key and keyway
Used to keep the foundation walls laterally anchored to the footings.
Dowel
Short piece of reinforcing steel bar
Mushroom Cap
Used over rebar ends to guard workers against impalement.
Corbel
A corbel is a widening in a wall, often at the top. Structural or decorative purposes.
Ledge
A concrete wall with its thickness reduced at the the top to accommodate the floor joists, brickwork or slabs.