Thread: what is a hanging beam
30th Jun 2007, 08:36 PM #1
what is a hanging beam
i have an old workers cottage west of melbourne. i just got half my attic converted to storage space and want to do the other half myself by laying some flooring. i was warned i need to replace my hanging beams which are skew-whiff. what exactly are they? i know it's a silly question but i have no idea and haven't found a basic definition of 'hanging beam' or how they work anywhere???
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30th Jun 2007, 08:44 PM #2
A hanging beam runs at 90 to the ceiling joists and the joists "hang" off it via joist hangers which are nothing more that pressed meta.
30th Jun 2007, 08:44 PM #3
Its a beam that runs across the ceiling joists in the middle of the room.
The joists are bracketed or cleated to the beam. So the joist loads hang from that beam.
You might also need to fit separate floor joists to hold the weight of the floor as the ceiling joists are normally only sized to hold ceiling loads.Regards, Bob Thomas
30th Jun 2007, 08:45 PM #4
A hanging beam runs at 90 to the ceiling joists and the joists "hang" off it via joist hangers which are nothing more that pressed metal.
30th Jun 2007, 09:36 PM #5
thanks very much.
i just found this diagram on the web which made sense: http://www.mii.com/artefact/download.asp?aid=26774
now, tell me, what is it that keeps the hanging beam in place - is it held there because it is attached to all the joists? or is it bolted at the ends?
1st Jul 2007, 12:24 PM #6
This pic may also be helpful.
1st Jul 2007, 01:24 PM #7
The joists hang from the hanging beam, not the other way around. If you are adding storage to the attic then you may need to upsize the hanging beam or add extra hanging beams to take the load. The ceiling may need temporary propping if you ar removing a hanging beam.
1st Jul 2007, 07:00 PM #8
Are the ceiling joists and ceiling battens one and the same thing in this scenario or would you fix battens to the joists?
1st Jul 2007, 07:35 PM #9
Generally ceiling lining (plaster) is fixed directly to the ceiling joists.
on rare occaisions battens are fixed to the celing joists.
Generally (dontcha love that word) battens are fixed to the bottom chords of roof trusses to support the plaster but on rare occaisions extra roof trusses are used at a spacing of 600mm so the plaster can be fixed to the bottom chords without battens.Regards, Bob Thomas
2nd Jul 2007, 07:03 PM #10
2nd Jul 2007, 07:22 PM #11
To change the subject slightly, I had an interesting experience after installing my steel/tin inverted "U" shaped ceiling battens. I was sweeping up on a couple of occasions after installation and I noticed these little round steel discs. On the second occasion I did a bit more investigation and found they were the head of the screws that I had used to fix the ceiling battens and had sheared off. I certainly hadn't over-tensioned them and I reckon they had gone overboard when the "X" was stamped in the head of the screw and therby weakened it. I re-fixed the faulty ones and hope now that the plaster doesn't come crashing down one day.
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