OOPS

[DaveDCB]

https://www.facebook.com/permalink.php?story_fbid=10157369060082885&id=697292884

Im guessing that was just on strong boys..?
Im taking the back out of my house next week(like this but hopefully without full collapse!!).. I fully intend to have the steel under the props, no strong boys , rsj over two acros x 12! before removing the supporting wall... I won’t film it

 

[V8Druid]

Im guessing that was just on strong boys..?
Im taking the back out of my house next week(like this but hopefully without full collapse!!).. I fully intend to have the steel under the props, no strong boys , rsj over two acros x 12! before removing the supporting wall... I won’t film it

yeh you won't beat plenty of needles through the wall have replaced some monster walls with beams, under proper needle pinning ... totally worth the effort, 'specially if you've a metre thick stone wall coming out

 

[Brendan]

Looked like it was only propped from the inside.
Never understood why people don't put there steels against the wall before propping, nothing worse than having to try and thread a steel through a load of acrows

 

[pettsy]

Got a couple of big 4m beams to go across the back of my house, fortunately down to the builder to sort em I did see something called brickbrace that looked quite clever for supporting walls.

 

[Brendan]

Got a couple of big 4m beams to go across the back of my house, fortunately down to the builder to sort em I did see something called brickbrace that looked quite clever for supporting walls.

View attachment 12238View attachment 12239

Not sure how I feel about the brickbrace, from what I gather it's just expanding plates inside the perps and supposed to have at least another one a few courses up. Surely it relies on the rest of the perps being full and mortar in good condition, you still have to prop the inside separately, but at least you have a side open.
Did look at getting one of the no more props but just went over board with the acrows and strong boys instead

 

[DaveDCB]

My Brikkie swears by the brick face clamp things, fine I say when you have equal amount of wall either side to what your supporting but on big full rear openings they just cannot work. Needles everyday for me! Next one for me is a 13m 204x 86UC cut in half, but I was so tempted to do it all in one!

 

[Brendan]

Always found the way they do steels odd.
Alot of the time relying on a bolted connection rather than either a plate or weld. Not sure if explained it well but on some goalpost ones we put in some had the horizontal bolted to the upright and another had the verticals under the horizontal. Same as when long beams meet, just a few bolts rather than a plate to sit on and bolted

 

[Bri963]

Don’t underestimate the tensile strength of bolts. There’s some absolutely huge spans across the country that rely on bolts in tension to keep them up.

 

[V8Druid]

Don’t underestimate the tensile strength of bolts. There’s some absolutely huge spans across the country that rely on bolts in tension to keep them up.

aye ... but goal posts'd be in shear ... flying joints only in tension usually

 

[Stubota86]

Always found the way they do steels odd.
Alot of the time relying on a bolted connection rather than either a plate or weld. Not sure if explained it well but on some goalpost ones we put in some had the horizontal bolted to the upright and another had the verticals under the horizontal. Same as when long beams meet, just a few bolts rather than a plate to sit on and bolted

was chatting to an engineer on a loft conversion job, got on subject of cutting the steels up into sections for ease of handling and he said a bolted connection can be stronger than the original steel

either way we done it in one length but always wondered since
Phone cable and scaffold poles made it a bit tight, crane opwas bang on

 

[Brendan]

was chatting to an engineer on a loft conversion job, got on subject of cutting the steels up into sections for ease of handling and he said a bolted connection can be stronger than the original steel

either way we done it in one length but always wondered since
Phone cable and scaffold poles made it a bit tight, crane opwas bang on

Have you seen them telebeams? When we were looking at options came across them

 

[Stubota86]

Have you seen them telebeams? When we were looking at options came across them

yeah pretty cool idea, looks nice and easy, prob I find is getting architect or engineer to try anything different.... that reminds me was gonna start a thread about Porotherm blocks

 

[DaveDCB]

was chatting to an engineer on a loft conversion job, got on subject of cutting the steels up into sections for ease of handling and he said a bolted connection can be stronger than the original steel

either way we done it in one length but always wondered since
Phone cable and scaffold poles made it a bit tight, crane opwas bang on

Folks wearing trainers on site When doing jobs like that make me cringe everytime

 

[Brendan]

yeah pretty cool idea, looks nice and easy, prob I find is getting architect or engineer to try anything different.... that reminds me was gonna start a thread about Porotherm blocks

I'm sure they are all building regs approved with no need for engineer specs

 

[DaveDCB]

Always found the way they do steels odd.
Alot of the time relying on a bolted connection rather than either a plate or weld. Not sure if explained it well but on some goalpost ones we put in some had the horizontal bolted to the upright and another had the verticals under the horizontal. Same as when long beams meet, just a few bolts rather than a plate to sit on and bolted

Found this the other week, gives a general idea to steelwork connections, I do agree that engineers way over spec the steelwork and then seem to just pick a simple connection detail, my only guess is that the steel size isn’t for ‘strength’ it’s more for deflection thus why the bolt detail isn’t as strong as the steel looks, just because it simply isn’t required?

Error - Steelo

www.steelo.co.uk

 

[Gecko]

I do agree that engineers way over spec the steelwork and then seem to just pick a simple connection detail, my only guess is that the steel size isn’t for ‘strength’ it’s more for deflection

This is absolutely true.
I've done the numbers for a catwalk and even after you calculate max. load and then multiply that by a safety factor of say three, it'd still be like a bouncy castle. So you design for 10mm deflection instead of 50mm and everyone's happy.
From an engineers point of view, you can do the calculations precisely or you can save a few hours calculations, spec. a beam two sizes larger and it works out cheaper for the client.

 

[pettsy]

Not sure if this was posted Before but seen from behind... oops

Rudie Reisiger

www.facebook.com

 

[doobin]

Wholy s**t! Woah...le s**t!

 

[Brendan]

https://www.facebook.com/permalink.php?story_fbid=2633531840028598&id=100001154220772

 

[V8Druid]

Not sure if this was posted Before but seen from behind... oops

Rudie Reisiger

www.facebook.com

HOW??????