 | Home > Off Topic > one for the builders |
 
|
|
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298   
|
guys - had a go a starting the fix on this last night with my mate and suprise suprise not quite so straight forward.
although we had the acros in place we felt it was a shame to go cutting the ends of the joists off as they obviously provide a significant amount of strength. so now looking to implent a bolt on solution. what do you think.  Click image to enlarge Click image to enlarge Click image to enlarge |
||
26th Mar 2013 2:05pm |
|
| farmer giles Member Since: 09 Feb 2011 Location: worcestershire Posts: 1299 
|
how many joists does this affect caterham? it's just that the strengthening plates seams excessive, as any load is being supported from the timber plate beneath not the notched remainder
the typical two solutions are either a wallplate underneath the joists - your bolted timber is the equivilent; or joist hangers mounted to a timber plate (the timber in the steel web is ideal) |
||
|
26th Mar 2013 2:19pm |
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
|
there's about 7 joists (x2 one from each direction)
photo 1 is how it is currently but unfortunately the smaller timber is only screwed to the timber sitting in the web of the steel and not terribly well. photo 2 is probably my preferred option but I'm not sure I'll be abl to get a suitable drill bit or long enough high tensile bolts? photo 3 is probaby the easiest to fit once I've found suitable steel work and someone has convinced me it'll work. I perhaps should take some photos of how it is now. was going to go down the route of straps but its proper messy trying to find a suitable method of trying to install them neatly. thanks for your response. |
||
|
26th Mar 2013 2:43pm |
|
| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443 
|
To be honest the speedy hangers will actually provide more support as they take the weight at the bittom om the full joist plus will allow some movement as the whole house moves at different temperatures. They are more in keeping with building regs and as such by using a recognised method won't inncur the over curiosity of a building inspector or insurance assessor.
|
||
|
26th Mar 2013 4:36pm |
|
| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5666 
|
I would bolt through the rsj and through the two timbers on either side, then glue and screw another timber across the lower part to pick up on the base of all the joists, (as your picture 2, but not bolt through lower member as will remove strength). Then I would put noggins in between all the joist, at the very end, so they sit on the lower cross timber, and can be fixed to the bolted timber inside the rsj.
Andy |
||
|
26th Mar 2013 5:52pm |
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
|
I'm at a loss sorry guys.
to stand half a chance of drilling the steel I'll need a 300mm long hss bit and then I would imagine the only option will be threaded rod, washers and nuts? due to the size of the timbers I don't think bolting only the larger timber into the web will be possible. sorry guys but this is something I'm struggling to decide on as its not what I do. Click image to enlarge Click image to enlarge |
||
|
26th Mar 2013 9:18pm |
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
|
guys - one of my mates thinks I'm worrying over nothing?
but I'm not convinced.....as an improvement but without taking it too far whats your thoughts on getting some 3/4 or 1" ply and cutting it to the same shape as the last 12 - 18" of floor joist and then glueing / screwing (or bolting) to floor joist? many thanks |
||
|
26th Mar 2013 9:42pm |
|
| 238kirk Member Since: 03 Nov 2012 Location: Doncaster Posts: 233  
|
To be perfectly honest looking at your picture, those joists although not ideal they wont be going anywhere, there's no need to put re enforcing on the side of the joists, I'd pack everything up solid, put some bolts/threaded bar through the webbing and nog in between the joists, then put the floorboards back down, don't worry about it too much your house won't implode from that, I've come across worse than that on some jobs...
|
||
|
26th Mar 2013 9:56pm |
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
|
thanks that the sort of stuff I wanted to hear - thanks.
the reinforceing using ply however is likely to be easier than drilling bolting - with that in mind do you think thats an option and do away with the drilling through the steel altogether? I'll take another photo soon and I suspect it'll make you laugh and demonstrate just how muchk I've been worrying 
Click image to enlarge |
||
|
26th Mar 2013 10:02pm |
|
| 238kirk Member Since: 03 Nov 2012 Location: Doncaster Posts: 233
|
Haha that did make me chuckle a little, you must have cleared the hire place out
i'd always recommend bolting the timber in the webbing but as the joists go over the steel as well then just make sure everything packed solid and nogged and it will be fine, but I guess you would like to put the re enforcing on aswell for piece of Mind so it wouldn't do any harm. |
||
|
26th Mar 2013 10:17pm |
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
|
thank you so much.
glad it made you smile. so off to get some 1" ply, bolts and glue.....what glue would you recommend - PVA or no nails? I've been rather concerned about these joists but having had more than one person kindly suggest I'm worrying over nothing is great news - thanks again. hopefully I'll sleep well tonight. |
||
|
26th Mar 2013 10:22pm |
|
| 238kirk Member Since: 03 Nov 2012 Location: Doncaster Posts: 233
|
Use wood glue/pva, have fun
|
||
|
26th Mar 2013 10:24pm |
|
| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298
|
thanks and will do.
4x m6 bolts for each? |
||
|
26th Mar 2013 10:27pm |
|
| 238kirk Member Since: 03 Nov 2012 Location: Doncaster Posts: 233
|
I'd use m8 coach bolts, 4 is plenty enough
 |
||
|
26th Mar 2013 10:31pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
