Rank: Forum user 
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Done a bit of a search for this one but not found an answer that relates to my question.
OK, so if you were to plan for the removal of scrap materials from the 2nd floor of a building would you consider using a skip that was suspended from a HIAB adjacent to an appropriately protected (WAH) opening? The key thing I'm looking at here is a reasoned argument for and against this method of working (a suspended skip) and any legislation that would allow or disallow this activity.
Couple of things to bear in mind;
1. The material being removed is large and this may prevent the use of chutes.
2. The opening on the 2nd floor is protected in line with WAH legislation.
Any assistance is appreciated, especially from our Demolition experts out there.
Cheers me dears.
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Rank: Super forum user
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N
I feel you are opening up a can of worms here.
You have to treat this as a Lifting Operation therefore LOLER applies.
I am not a legislation quoter more a practical person?
Think of suspending something in mid air then throwing unknown weights into it?
If it is to heavy it could put the HIAB out of radius for the actual load it is lifting therefore causing it to tip over.
To me unless weights are known it is a non starter.
You have already said you have taken into account WAH so you are obviously looking at this sensibly therefore look at LOLER for your guidance and BS7121 you are going in the right direction.
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Rank: New forum user
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N, sorry for the naievity,
If the scrap was of such a size, how come its on the 2nd floor of a building? would it not be possible to dismantle into smaller components and dispose of via a chute, or brick/block lift?
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Rank: Super forum user
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Not an expert but you say you would like to here from demolition experts does that mean you are demolishing the premise? In that case is it not possible to leave it until the second floor becomes the ground floor and then recovery it?
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Rank: Forum user
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I was told only last week about an accident involving serious injury, resulting from just this situation.
As has already been said by Alex, the weights need to be known, and controls to ensure they are not exceeded need to be put in place.
Even then, I'm not happy about the load being suspended for a long time. What if the HIAB fails?
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Rank: Forum user
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N,
Are you looking to utilise HIAB lifting rig instead of a crane? If so looks like a money saving operation, could the materials be slung directly? if so would a 17 metre telehandler with tipping skip be of more use?
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Rank: Super forum user
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I admit not my area of expertise ... but are you talking about objects or materials?
If it is "objects" why can they not be lifted out by conventional crane? If you are talking about "materials" then why not place a skip at the upper/second floor and then lift it out when it is full?
And finally; I regard HIAB type equpipment as being used for lifting materials/loads off the bed of a lorry and lowering them to the ground. Using it to lift "a skip into the sky" doesn't seem what it was designed for!
Phil
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Rank: Super forum user
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Sounds to me like a recipe for disaster. You have to consider the dynamic loads imposed as well as the static loads. These are really an imponderable depending on the force of throw, distance of drop, fullness of the skip etc etc. So the final analysis ought to be that such an operation is of such high risk that it really should not be attempted. If it is waste then cut it up so that it can be handled alternatively l;ook at a designed loading bay and the use of a crane. Hiab and skip really looks and sounds like an unplanned operation from my perspective.
Bob
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Rank: Super forum user
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Nlivesey wrote:Done a bit of a search for this one but not found an answer that relates to my question.
OK, so if you were to plan for the removal of scrap materials from the 2nd floor of a building would you consider using a skip that was suspended from a HIAB adjacent to an appropriately protected (WAH) opening? The key thing I'm looking at here is a reasoned argument for and against this method of working (a suspended skip) and any legislation that would allow or disallow this activity.
Couple of things to bear in mind;
1. The material being removed is large and this may prevent the use of chutes.
2. The opening on the 2nd floor is protected in line with WAH legislation.
Any assistance is appreciated, especially from our Demolition experts out there.
Cheers me dears.
Can you give more details, is this a demo job, refurb or new build?? Amount of material to be removed?
Are you using a HIAB lorry loader?? This will not reach up to the second floor, and if it does, is it going to remain a swinging load mid air, and the lads turfing the material into the skip?
I personallt wouldnt do it, find an alternative,
1. build a loading gantry out of the second floor opening (by a competent person, certified, SWL displayed and inspected weekly),
2. Can the material be cut down to smaller size??
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Rank: Forum user
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Thanks all for taking the time to respond. You've confirmed the various angles I was looking at here.
Apologies for the lack of detail but it's a 'work in progress' if you get my drift.
Cheers folks.
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