Scaffolds are hardly ever independent structures. To ensure stability for a scaffold (at leftffol) framework ties are usually fixed to either an adjacent building, steelwork, or fabric.

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The general practice involves tying every 4 metres on the alternate lifts (traditional scaffolding). The prefabricated scaffolds typically necessitate structural connections on every frame, for example, 2 to 3 metre centres (the tie patterns are provided by the System supplier or manufacturer). The ties are then coupled to a scaffold (as close as possible) to the ledger (node point) and the “junction of standard”. Due to the latest changes in regulation, scaffolding ties have to support +/- loads (butt or tie loads) and shear (lateral) loads.

Since the nature of each structure is different, there are different ties used to benefit from these opportunities.

The through ties pass through a structure opening like a window. An inside vertical tube opening and crossing attaches to a scaffold by both a horizontal crossing and transom tube along the outside which is known as a “bridle tube”. The gaps that occur between the surfaces of the structure and the tubes are then wedged or packed with sections of timber to guarantee a reliable and solid fit.

Box ties are also used for attaching the scaffolding to pillars or any other comparable features. Two more transforms are placed on the opposite side of a lift on either side of these features and then joined on either side with shorter tubes known as “tie tubes”. When the complete “box tie” is not possible, then an L-shaped lip tie is often used so that the scaffolding hooks onto a structure. To decrease inward movements another transom and butt transom is positioned as close as possible to the exterior “face” of a structure.

In some cases, anchor ties also known as bolt ties can be used. These ties fit into drilled holes in a structure. The most common type includes the ring bolt that comes with a wedge that expands which is tied to node points.

The reveal tie is the least “invasive” tie. These ties use openings in a structure with a horizontally wedged tube. These reveal tubes are typically secured using a reveal-screw pin (better known as an adjustable threaded bar), along with protective packing on either end. From here transom tie tubes link or attach the reveal tubes to a scaffold. Not as well regarded, the reveal ties rely only on friction. They also require regular checking which is why they are not suggested that over 50% of the ties are revealed ties.

When it is impossible to use enough ties (a safe number), rakers can also be used. Rakers are better known as single tubes that attach to ledges that extend from a scaffold that is securely founded and at angles under 75°. At the base, a transform will complete the triangle which returns to the main scaffolding base.

Reasons To Use Scaffolding

A plate or base jack is the load-bearing base used for scaffolds.
The standard is an upright component that features connector joins.
The transom is a cross-section, a horizontal load-bearing component made to hold the decking unit, board, or batten.
The ledger is the horizontal brace.
Cross-section and/or brace diagonal bracing component.
Board decking or batten component is used to create a working platform.
The couple is a fitting that is commonly used to join different components together.
Brackets are used to increase the working platform’s width.
Scaffold ties are used to attach or tie the scaffold into structures.