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Below I've included a rough sketch of the joist layout. Hopefully you can see what I mean about the lapped joists on the two load bearing walls that aren't aligned. Hence why I plan to install 2no. RSJs in place of the walls (which also aren't aligned). Id be curious to hear if you think there...

Hi Tony, I'm working off these loads below. Screenshot 2021-03-25 At 22.22.26 by Vennegoor posted 25 Mar 2021 at 10:23 PM From these I've listed the breakdown of permanent and imposed loads (Eurocode, I'm showing my youth!). You'll notice that whilst there are no walls directly above the beam...

I tried a 152x152x30 UC as the beam initially and whilst ULS was fine, deflection under serviceability was greater than 1/360 of the span with a utilisation of about 1.6. I suppose a UB could be a better option so that it can be deeper and narrower, I'll check later. I then just selected the...

Great advice, thank you. Now this is something I've been battling with for some time, because of course you're right, ideally not. However the problem I have is that the joists lap on the load bearing walls, and because the load bearing walls are in different places, the joists lap indifferent...

Punching shear from the column is fine.

Thanks Tony, and so modelling the column as a cantilever with only an applied horizontal and vertical force a the top would be fine - without modelling for any significant applied moment at the top? If this is the case them I expect the 400x400x10 base plate on the slab should do the trick as...

Hi everyone, sorry for the second post in one day. I am currently looking to install an RSJ and steel column in my house in place of a load bearing wall. My question is in regards to how structural engineers normally model the connections. See diagram below: Screenshot 2021-03-25 At 14.42.00...

Sorry for commandeering the post but I just wanted to double check this. I'm doing some work on my house and I intend to support my RSJ on a 400x100x140 pad stone on my inner leaf of a cavity wall (party wall), perpendicularly. I didn't think this was an issue (masonry and pad stone bearing...

Hi all, I am looking to open up my downstairs with a few RSJs and columns, see images below: Existing 3D by Vennegoor posted 25 Mar 2021 at 2:18 PMProposed 3D by Vennegoor posted 25 Mar 2021 at 2:18 PMExisting Plan by Vennegoor posted 25 Mar 2021 at 2:18 PMProposed Plan by Vennegoor posted 25...