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Annotated Dictionary of Construction Safety and Health
Published in Charles D. Reese, James V. Edison, Annotated Dictionary of Construction Safety and Health, 2018
Charles D. Reese, James V. Edison
Appendix F provides information regarding the safe working loads of various sizes of shackles. Higher safe working loads are permissible, when recommended by the manufacturer for specific, identifiable products, provided that a safety factor of not less than five is maintained, as well as hooks. The manufacturer’s recommendations are to be followed in determining the safe working loads of the various sizes and types of specific and identifiable hooks. All hooks for which no applicable manufacturer’s recommendations are available, are to be tested to twice the intended safe working load, before they are initially put into use (see Figure 90). The employer shall maintain a record of the dates and results of such tests.
Safe moving and storing of materials
Published in Mike Tooley, Engineering Technologies Level 3, 2017
Shackles or hook rings are divided into two main categories: simple D-type shackles or bow-type (anchor) shackles. Both are available with pins that can be threaded or secured with nuts. Figure 3.14 shows how the basic types of shackle are used and the crown points where the load is applied.
A Method for Rapidly Deploying Suspended Footbridges
Published in Structural Engineering International, 2021
Edward M. Segal, Laurie Elkowitz, Nicholas Belitsis
The three whoopie slings used were each constructed of the same 12 mm (nominal) diameter polyester product as the bridge ropes. Each whoopie sling had a fixed eye provided by using a locked Brummel splice at one end and an adjustable loop at the other end. One whoopie sling was placed above the branches in the tree on the near side. Each end of this whoopie sling was connected to a swivel shackle at the end of the net through a double-locking carabiner. The other two whoopie slings were placed in parallel to the come-alongs and were connected from the ratchet strap to the bridge ropes through double-locking carabiners. Consequently, when the bridge was loaded by pedestrians, the loads from the bridge ropes were shared between the whoopie slings and the come-alongs.