Hi All,
I've been asked to scheme up a foundation design for a 4 Storey Modular building.
This type of building design is new to me.
Modules arrive on site in 3m X 12m Pods.
Rock is close in the subgrade so the plan is to provide lean mix on rock and provide pads at the grid spacings above...
Hi,
I have an existing timber joist floor which spans 3.6m. Joists are 44x225 at 450 centres. The client wishes to add an additional floor to the house above these joists. So now I will have a line load (load bearing stud wall) going perpendicular to these joists at mid span which supports...
Hi Mistructe_ire,
Having thought a bit more about it I'm going to reduce the window width and creat a 200mm end bearing for the lintol. I'm going to use a heavy duty lintol which is effectively a UB.
Cheers.
Hi,
I have a window lintol sitting onto a 100mm wall 90 degrees to the wall. But....It's at the end of the wall though. I'm not comfortable with the detail as the load spread is only in 1 direction. Anyone do this before??
Thanks.
Hi OldbldgGuy,
Crikey that was a scary story.
My building 4 stories, not too narrow about 6m wide x 7.5m deep. Yes front walls are bracing the party walls and there is also an internal wall mid way which braces both gables also. To be fair the walls seem in reasonable condition and are 600mm...
Hi All,
I've just looked at a 150 year old 3 storey house for a client. The house was part of a very long terrace at some point (circa 20 houses). The houses on both sides have been demolished leaving it detached. I've noticed a significant horizontal open crack at 2nd floor level (outside -...
Thanks xr250 and houseboy. Good to know you have seen this before and are not overly concerned. I like the idea of strengthening the adjoining trusses as it maybe an easier option. Would you suggest attach an additional timber to the middle third of the 2 adjoining trusses (bottom boom) and...
Not sure this will bring the adjoining trusses back into their original position and unload the non load bearing stud walls. It's a good starting point though.
Ok now I understand the strap detail. It wasn't clear before. Thanks guys. This sorts out any further loss of tension. But how does one jack the roof in the correct sequence when the load due to cut truss has already been redistributed into adjoining trusses and are possibly loading non load...
Not sure why you think this is beyond my abilities oldestguy. It's just I haven't come across this issue before. I thought that was the idea of this forum, that is to share experiences. All I was hoping for was that someone on the forum had encountered this scenario before and was willing to...
When I say node point there are diagonal timbers running to the roof ridge and rafter half span just beyond where the cut has been made.
Yes chord not cord. Typo.
How does one jack in a live house?
Not sure what you mean by strap...Strap what to what?
Do I jack and then splice on the cut...
I've been asked to look at the following issue.
A domestic roof engineered truss has had the bottom cord cut to install an attic access hatch door. It has been cut adjacent to a node point. One truss cut only at the third point. The node gang nail at the cut point looks in distress and has...
Thanks for all you're comments. The column solution would involve extending 2 levels through 1st floor and ground floor as the ground floor is a suspended timber floor. I would have thought sliding the second beam in through a localised hole on the roof would be less labour intensive.
Milkshakelake are you suggesting that the original beam could have already cambered downward as it was undersized? In effect this now could be deemed defunct as it may not be transferring any load once the new beam is installed?
Msquared48 I can only access 1 side of the existing beam as it is tight against a party wall. See point c of my initial post re possible intermediate support.
Hotrod 10. The 2 beams sit on the top flange of the undersized beam (not bolted) but on the opposite end they sit on a party wall so not sure you can say Le is reduced. As you say deflection will still be an issue. I like your idea of sliding a second beam in beside the existing. Would you...
Hi. I have an undersized loft beam which was installed in error. Beam is at wallplate level. I need to increase it's strength to get it to work in terms of buckling and deflection. The following thoughts are coming to mind.
A. Take down ceiling, Jack the beam and weld on a T section to increase...
Attached is what the extension will look like from the rear.https://files.engineering.com/getfile.aspx?folder=aa9ba31c-0e40-49d9-8614-0fc11a17eef0&file=Garden_view.pdf
Walls to be removed are highlighted on the attached sketch.https://files.engineering.com/getfile.aspx?folder=23cc2173-04cc-4963-856a-56cc3d982ff1&file=Walls_Removed.pdf
