Technical Review Middle East Issue 2 2021

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S07 TRME 2 2021 Excavators_Layout 1 24/03/2021 09:04 Page 27

Formwork & Scaffolding

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Things to know about dismantling scaffolding The process of dismantling scaffolds remains a high-risk activity, not only to those carrying out the work, but to other workers and the general public. F WE'VE PROVEN anything by this point, it's that a properly erected scaffolding tower is an entirely safe structure. It's built to be a temporary array of metal and wooden elements, that's true enough, but that expertly constructed staging will remain stable for as long as it's required. What about after the completion of the work project? The scaffolding needs to come down in a safely controlled manner, right?

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Defining dismantling dangers A scaffolding contractor is responsible for removing the work platform, but there are no shortcuts available here, not when wooden planks and long metal tubes are suspended at a great height. Even if the project is finished and all of the workers have moved onto the next project, a poorly initiated dismantlement procedure will cause damage, both to the property and any lingering site workers. No, only systematic scaffolding dismantling methods can be allowed. With that said, where do we begin?

Let's face it, that's not a process at all, not when the scaffolding requires a safe lowering mechanism. Its platforms and ropes, hoists and level­to­level manpower lowering that properly gets those pieces back on the ground. Before dismantling the scaffolding, remove all tools and construction materials from the wooden platforms. Also, disengage the support assemblies that bind the framework to a wall or window. Finally, and this should be another self­evident matter, don't conduct this potentially hazardous process if strong winds or a heavy storm is blowing overhead. ■ Source: C&N Scaffolding Hire

A systematic breakdown strategy

Photo Credit : Adobe Stock

First of all, dismantlement work is every bit as hazardous as the erection process. A competent person must be on hand to oversee the process. Start by running a structural check. All components should still be firmly attached, which is to say none of the at­height work has caused parts to destablise on any of the levels of the structure. Wooden planks should be firmly seated and all fasteners must still be optimally anchored. Starting from the top, obviously, the ties and braces are dismantled. A minimally equipped fall prevention system is advised as the dismantling procedure continues. After all, the breakdown still involves a height hazard, so the fall prevention frame should remain until all other staging elements have been removed.

Returning the scaffolding to the ground All of these safety points would seem to be obvious, but sometimes common sense takes a break. Never assume a prudential work ethic is on hand. Instead, assume the worst. In this case, the worst possible course of action would be to drop or throw the dismantled parts down to the ground. That's not an acceptable work procedure.

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Technical Review Middle East - Issue Two 2021


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