Lintel loading/check please

[TeaAndBiscuits]

Hi all,

Just redoing my upstairs bathroom and have moved a stud wall to make it a bit bigger. I also want to move the bath (1700 x 800) to the other side of the room.

This would place it dead over the top of the supporting wall below which has a doorway in it.

The bath legs would be supported by the joists highlighted in the photo. One of them is directly over the centre of the doorway.

I've chiselled away the plaster to see how big the lintel is and it's a concrete one approx 170mm deep (by 100 wide)

Can anyone tell me if placing weight of the bath above this will be an issue?

 

[TeaAndBiscuits]

As further context, the other ends of these joists on the other side of the room (the alternative location for the bath) are seated on the flange of an RSJ like this

It seems to me that if I put the bath on this side of the room then the entire load is being taken by the flange of the RSJ... is that a good idea?

 

[tony1851]

If the lintel is 170 deep, and supporting (presumably?) 1/4 of the load of the bath, it shouldn't be a problem.
Likewise the bottom flange of the steel beam will be fine with that loading.

 

[TeaAndBiscuits]

If the lintel is 170 deep, and supporting (presumably?) 1/4 of the load of the bath, it shouldn't be a problem.
Likewise the bottom flange of the steel beam will be fine with that loading.

Great, thanks.

One question - why do you suggest 1/4 the weight of the bath? If it's dead centre over the top of the supporting wall and sitting on those 2 joints, wont the lintel be taking 1/2 the weight?