Formwork for Concrete Structures by R.L.Peurifoy and G.D- By EasyEngineering.net

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Shores and Scaffolding 177
Accessory Items for Tubular Scaffolding
The following accessory items are available for use with tubular
scaffolding:
1. Base plates to provide solid footing for the scaffolding
2. Adjustable bases and screw jacks for adjustment to exact height
3. Locking devices to attach tube braces between adjacent scaffolds
4. Diagonal cross braces to provide rigidity to the scaffold
assembly
5. Coupling pins to connect two frames vertically
6. U-shaped shore heads for attachment of wood or metal
stringers
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Figure 6-8 illustrates typical types of connections that are available
for scaffolding of Patent Construction Systems, and Figure 6-9
presents typical accessories available for steel scaffolding frames of
the Symons Corporation. Figure 6-10 shows a jobsite with tubular
steel frames in place.
Steel Tower Frames
Commercial steel tower frames are available to support high and heavy
loads, such as bridge piers or heavy beams. Tower frames are erected
in sections, each consisting of four legs with heights of 8 or 10 ft. Each
section is box shaped, fabricated from two welded frames and two
X-welded frames, with equal dimensions in the horizontal and vertical
directions. Up to four additional sections may be added to obtain a
maximum height of 40 ft for a four-tier tower. Each tower section is
securely fastened by frame couplers at each leg. A horizontal brace,
adjusted by a turnbuckle, is used to brace adjacent sections of the tower.
Tower frames are available with working load capacities of up to
FIGURE 6-8 Illustrative connections for scaffolding. (a) Frame assembly. (b) SideLoks.
(c) Coupler for diagonal connections. (d) Coupler for right-angle connection. (Source:
Patent Construction Systems)
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