G4 - Plan Suspended Formwork Flashcards
With which materials are column capitals typically formed?
Pre-fab metal or fiberglass molds
Who must certify plans for a suspended slab?
P.Eng
Why is plywood supporting the underside of a drop panel made larger?
To support the panel’s edge form & bracing
Before a lift is carried out, what should be established?
Communication
In accordance with what documentation must fly forms be constructed, hoisted moved and set?
Instructions of designer or manuf.
Where are your options for placing concrete in a slab?
Chute, pump or crane
When can formwork for a suspended slab be removed?
When the design strength has been reached.
List four options for curing a suspended slab.
Ponding, wet covering, mechanical barriers and curing compounds
In what sequence does form stripping usually take place?
1) Bem sides, perimeter infill, small sections then large sections
The tagline for a flyform must be what diameter and rope type?
5/8” Polypropylene
What should workers inspect Aluma Beams for before use?
Wear, corrosion, deformity.
What factors can affect the scheduling of a suspended slab?
Availability of materials, delivery of material,s and coordination with sub trades.
What is an alternative to the Column Capital?
Drop panel, easier to form out of plywood, using similar system as for beams. Soffit plywood rests on the joists and stringers and finally a shore head.
The underside of a slab is known as:
Soffit
The material used to form the slab known as:
Decking
Flyforms are known by their name because:
They are crane-lifted or flown
Gang forms are mostly used for:
Forming walls
Slab tables are mostly used for:
Forming suspended slabs
Modern slab table consists of:
Alum. truss shoring., stringers, and/or joists and screw jacks for leveling and a plywood deck.
Alum beam
Standard name for an aluminum extrusion that is in the shape of an I, includes 2x2 or composite material in the top and a groove in the bottom that will accept the head of a bolt to fasten the beam to the scaffold.
Most systems consist of what set up?
Scaffold and shoring on a mudsill, with beams and joists providing the support for the decking.
Who must ALWAYS design fly forms?
Designed by a P.ENG, and constructed, hoisted, moved, and set strictly according to the instructions of the designer or manufacturer.
Before placement, what should be done before placing concrete?
Slump test to make sure it is up to the standard of an P.Eng.
Typically, formwork for a suspended slab can be removed after:
14 days, but follow P.ENG plan for disassembly and re-shoring.
How to store Aluma beams properly?
Dry, well-ventilated area to prevent corrosion & damage.
Stored in a horizontal position, preferred. on a rack or a pallet to avoid bending or warping.
To avoid delays and a smooth construction process, what factors need to be considered?
Material availability, and delivery of (rebar, formwork), coordination with other trades (electrical, etc), weather conditions, and site-specific constraints. Efficient planning and scheduling will optimize the installation of suspended concrete slabs.
