Structural engineers eh!

[noseall]

We are building what will be an art studio at the mo', out of re-claimed bricks etc.

The roof is made up of 150mm x 50mm rafters at (min) 600mm c/c and is vaulted.

Near to the apex (550mm down vertically) are a pair of steel beams (yes two!) @ 356mm x 171mm x 57kg x 5640mm long!

Do SE's ever have to go on a course whereby they have to find ways to install these behemoths? Needless to say, the crane arrives at 9:00 am tomorrow.

They are going here....

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[RonnyRaygun]

Looks like a lot of steel for what it's holding up and the span...

 

[noseall]

Wall plate - wall plate is 4444mm.

Roof pitch is 43 degrees.

Each rafter is 3038mm from plate to ridge peak, so they are spanning aboot 2450mm up from wall plate to the purlin b/m.

The beam is spanning (clear) 5400mm.

 

[RonnyRaygun]

Wall plate - wall plate is 4444mm.

Roof pitch is 43 degrees.

Each rafter is 3038mm from plate to ridge peak, so they are spanning aboot 2450mm up from wall plate to the purlin b/m.

The beam is spanning (clear) 5400mm.

I would have thought a 203x133x30 or something similar at the ridge would have done the job by itself. Maybe there are two beams to cut down the span of the rafters a bit, but then a couple of 203x102s or even 178x102s probably would have done...

I just don't get it...are they supposed to be a feature?

 

[noseall]

I just don't get it...are they supposed to be a feature?

What, like somewhere for her to hang her paintings?

 

[tony1851]

Apart from the beams being ridiculously large, could they not have been spliced - might have been cheaper than a crane.

 

[^woody^]

I don't know which is worse .... that steel or those legs

 

[cjard]

Crane? You could have have picked those up with the back actor of a JCB if you know anyone who has one.. 320kg each


Might have been cheaper to pay a different se! Sympathise with ya tho.. I've got the same insane over engineering in my building. Don't forget to fireproof them

 

[tony1851]

would they need fire-proofing if supporting only a roof?

 

[catlad]

must have been two for one at the steel yard.

 

[Norcon]

Were doing a 60m long SE designed retainer at the moment.

One section is 3.3m tall x 1.2m wide.
Will take about 100 cube/m just to fill it. About 300m cube total. Be like hoover dam when its finished...lol.
And then a second pour above it.
Then we got a swimming pool and a chicken house to do.

 

[noseall]

Crane? You could have have picked those up with the back actor of a JCB if you know anyone who has one.. 320kg each

There is a site 400 yards up the road with a Manitou, but access is a problem. I doubt he'd be able to swing in position either side of the building whilst carrying that length of steel, particularly in view of scaffold position and all.

 

[noseall]

Apart from the beams being ridiculously large, could they not have been spliced - might have been cheaper than a crane.

Crane is coming in at £300 inc.

It would have been equally as difficult job to lift them and join them as a spliced item what with having to support them whilst joining etc. The wall plates are set at 3m up from DPC. The purlins are another 1.5m up from the plates. This would have meant having a (non-portable) scaffold etc to be able to work on the beams which in turn would have prohibited lifting etc.

A crane was always going to be in the equation. Just shocked at the sheer size of the steels. Just hope the crane driver is a patient chap, as my banksmans hand signals are a wee bit ropey.

 

[noseall]

I don't know which is worse .... that steel or those legs

I shall pass on your comments to my labourer. My legs are far worse than his.

 

[RonnyRaygun]

Just hope the crane driver is a patient chap, as my banksmans hand signals are a wee bit ropey.

Here you are - take this with you