What is a Strongback in formwork?
Also sometimes known as a strong back, a strongback is a type of construction that helps to enhance the strength of some type of structure by adding a secondary support at a key point in the design.
What is a Strongback in concrete?
Strongback Clamp Locks top and bottom forms together, providing a single unit to plumb. Wedge or Screw configuration. Offers additional horizontal waler and vertical alignment – reducing deflection where it is most apt to occur.
What is Strongback bracing?
What strongbacks are. Strongbacks are horizontal members that attach perpendicularly to a series of open web joists, inside the floor cavity. Their purpose is to reduce vibration while increasing floor comfort and performance. During construction, they also prevent joist rollover.
What is used for concrete formwork?
The concrete formwork process is often referred to as shuttering, which is typically made from timber—although some contractors use reinforced plastic, steel or fiberglass. Often, once the concrete structure has set and deemed safe, the formwork is safely removed from site.
What are snap ties used for?
Snap Ties are used to vertically form concrete walls that can have a wide variety of widths and heights. There are various systems you can use to create the form system you require depending on your needs. Snap ties make the installation of concrete formwork and the subsequent removal extremely easy and efficient.
How tall are concrete wall forms?
It is available in widths from 36″ – 1″ and heights up to 120 inches.
In what location would a Strongback be used?
TO MINIMIZE VIBRATION COMMON TO ALL SHALLOW FRAMING SYSTEMS, 2×6 “STRONGBACK” IS RECOMMENDED, LOCATED EVERY 8 TO 10 FEET ALONG A FLOOR TRUSS.
Are snap ties necessary?
Form ties are the important accessories of formwork. Different type of form ties used in formwork are explained below….Load Capacity Range of Different Form Ties.
| Form Tie Type | Safe Load Carrying Capacity Range (lbs.) |
|---|---|
| Snap tie | 2250 – 3350 |
| Taper tie | 3000 – 43700 |
| Threaded tie | 10000 – 32500 |
| She-bolt tie | 3000 – 38000 |
Can I use a strongback to reinforce a wall?
A strongback is an alignment tool only and is not meant to reinforce the wall or resist lateral pressure from the wet concrete. 2×4 or similar lumber is often utilized with a clamp or bracket.
What are the different types of formed concrete wall assembly elements?
Below is a general list of the most common formed concrete wall assembly elements which are typical of wood wall form systems: Panel – Plywood attached to the face of forming structure and provides the surface to which the concrete lays against
What are the different types of reinforcement for concrete walls?
– Face sheet – Aluminum sheet attached to the face of the structure providing a forming surface for the concrete within the wall – Siderails – Perimeter reinforcement with similar bracing/strengthening features to the backbone (or stud)