Why is this question relevant to what I asked ie the load bearing capacity of a single acrow prop extended to 1.5m
It is the correct use of the support, which matters
Are we going to be told what this mystery load is, and why spacing of props is irrelevant?
Im trying to find specs for standard UK acrow props. Im needing to calc how many I need for the job. Will use a No1 or 2 prop extended to 2.5m
Can anyone help
For both number 1` and 2 acrows, we work to the following safe working loads.
10% open 35kN
50% open 30kN
Fully open 25kN
As we do not know whether you are needling or sole and plate shoring, can give you no further advice.
Regards oldun
Why the kilo newton techno jargon?
Its 10 ton.
I'd put 12 props under that assuming they are not extended.
It's HOW you prop that is important.
Are we going to be told what this mystery load is,
and why spacing of props is irrelevant?
f***** me, it's like some top secret MI6 job, or the OP is on an old modem and being charged per byte of information uploaded .... and is too tight to go near his allowance.
Why the kilo newton techno jargon?
Its 10 ton.
I'd put 12 props under that assuming they are not extended.
The quoted load is in kN as its taken from my calculations to deduce UB size and they are worked out using kN.
Calculations are done in Newtons as this is a unit of force, and we are dealing with force. Tonne is mass which is constant. Force can change depending on a number of factors.
Take the Acrow, if it is dead vertical and is supporting mass of 1 tonne then this is a force of 10kN. But if the acrow is tilted the mass remains the same but the force splits into two components, a vertical and horizontal both less than the original but adding up to the original. The vertical now becomes less, this is why force is used in these calculations instead of mass
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