Engineering Question

[Ken's Deputy 4,463]

Wonder if someone like The Stiff might have some knowledge of this sort of shit, maybe?

Problem is a cube. Said, four foot, hollow cube is to be subjected to wind force from one side ~ the back. Cube is also resting 16" off the floor, supported by concrete blocks under either side.  The whole is sat on a concrete slab.

My thought is to apply steel straps. A/ Bolted to the sides. Or, B/ In a staple form. Coming up either side and going across the top. Either way, diagonal to the sides of the cube. Running down, towards the back, where they'll be fixed to the slab.

(In simple terms, for the curious; It's a chicken house. Liable to be blown into the next county by the first hurricane of the winter. Winter Is Coming.)

 

 

[THE STIFFMEISTER 17,589]

Unsure of your budget , i beams sited around the lower interior of the cube? 
 

bringing the weight down to the lowest height possible . You mentioned I was made of wood , exposed to the weather , wood will obviously rot and prove Ill support for the structures lateral strength and weight bearing load , 

easier may be to place a concrete slab in each corner of the cube interior directly above the ones supporting it . 
 

Geotextile membrane layer to damp proof the wood should maintain the woulds integrity . 
 

as for the roof , steel bracing in equal passes over the roof and screwed in may help but I’d be hazarding guesses without looking at the overall height etc mate 

[THE STIFFMEISTER 17,589]

If it’s a cube , you may need to remove that flat area facing at the back . 
 

A triangle structure may lower the winds Effects . Two boards placed to a point at the rear might lower  the winds resistance to the back by pushing the wind “Round “ the hen house so to speak . 

[THE STIFFMEISTER 17,589]

In short , lift the hut , put a layer of damp course in each slab top 

put a slab in each corner above the pillars holding it of the deck with more damp proof underneath 

bond the roof with your steel strap idea 

make a toblerone of wood at the back , fasten to the rear wall with a point facing the wind 

[Ken's Deputy 4,463]

Fukk me, Stiff! This is why I ask questions of the right people!

Straight off the bat, my own level of thinking is left in the dust. I wonder if it might even be as simple as lobbing some more concrete blocks in the back of the box?

It's a basic matter of 'How much is enough', really. When Vs. an unknown variable, of course. No One can say exactly what force the next storm may hit my chickens with. But, at least I have to Try. As is? A good storm would have me doing the Madding Crowd bit.

And, yeah. Good point about the DPC. I normally do that. Have to admit; I've been so trying to get finished, and get my chickens in, I sort of swerved that concern.

Fukking stupid of me I'll get some under there, before I make it any harder. The wood's all drenched in oil. But, I have a roll of DPC here. Be a kunt not to use it!

Thanks

[leegreen 2,262]

How are the concrete blocks fixed?

[leegreen 2,262]

If they have foundations, I'd fill them with concrete and Rawl bolt the box from the inside through flat plate straps, what ever you have got.

[Ken's Deputy 4,463]

36 minutes ago, leegreen said:

How are the concrete blocks fixed?

  Blocks are just stacked, mate. One on top of the other. Given that it's a " 4'  square " box, sat on " 17 x 9 " blocks; There's two under each corner.

Their job is to get the box off the ground. That's more for me than anything else, really. Gets shit up top my height, rather than me having to bend and crawl in there to do shit.

My figuring though is that any wind that can push that box? Blocks beneath it likely wouldn't make That huge a difference ~ except for allowing the wind to funnel under there and, maybe, gain a bit more lift to the box.

Horrible fukking prospect. But, we have to face reality.

 

[Borr 8,334]

Get four 1m lengths of 12 mm stud bar, tube of chem anchor and a mastic gun and drill four holes 100mm deep near blocks , drills through chicken box and feed studs through and into ground and stick a plate nut and washer inside box and tighten. Abouts £25 I reckon.

[dytkos 18,005]

15 minutes ago, Borr said:

Get four 1m lengths of 12 mm stud bar, tube of chem anchor and a mastic gun and drill four holes 100mm deep near blocks , drills through chicken box and feed studs through and into ground and stick a plate nut and washer inside box and tighten. Abouts £25 I reckon.

You've thought that through no risk assessment? 

Cheers, D.

[waltjnr 8,269]

13 minutes ago, dytkos said:

You've thought that through no risk assessment? 

Cheers, D.

Third party liability insurance, method statement, competency off persons carrying out the task, this job is an accident waiting to happen

[socks 32,253]

No RAMS in place ……

[waltjnr 8,269]

Job ain't happening, sorry Ken 

[THE STIFFMEISTER 17,589]

Lads , just , don’t ………

currently sat writing RAMS , initial risk register , scopes of work and cross sectional diagrams . 
 

I used to jump out of planes . 

[Borr 8,334]

47 minutes ago, dytkos said:

You've thought that through no risk assessment? 

Cheers, D.

Remove chicken prior to start of works , 1 hour fire watch , PPE at all times and chain up ladders whilst not in use. Also all works to be carried out by a competent person , and obviously have all rams and cossh data available. To add I'm not suggesting this it's purely a hypothetical scenario.....