structural considerations for a bath

[psychonaut]

" you're probably over-thinking all this "

yes...i do that!

thanks tony. appreciate it. i'm going with the joist sandwich, as im going to build a plinth anyway, may as well do it on the actual joists.

thanks to you all.

 

[psychonaut]

"It's not just the bath they're sharing - it's also a huge amount of water. Nice, dense, water."

yup, 1kg per litre give or take.......calculated that in already ...we did that earlier in the thread

 

[Alec_t]

i am going to make a step, a big frame for the bath to sit on, i already said that...its gonna be at least made out of 2 x 8

Don't forget to allow for the weight of that in your calculations.

 

[psychonaut]

treu. also the screws. the air will be slightly less dense under the bath too when i use as it will be warmer,giving some lift, so ive got that to look forward to

 

[JohnD]

Don't forget the weight of the water.

The more people you have in the bath, the less room there will be for water.

 

[psychonaut]

and the more fun

 

[Leofric]

Only ARUP can solve this one

 

[psychonaut]

Arup?

 

[denso13]

Arup?

https://www.arup.com/

 

[psychonaut]

 

[tony1851]

...so how much do they charge for calcs for a beam.....?

 

[Leofric]

...so how much do they charge for calcs for a beam.....?

I will ask them to quote - just need to know the weight of the 2 people getting in the bath.

 

[^woody^]

just need to know the weight of the 2 people getting in the bath.

Tut, tut ... brush up on your Archimedes Principle.

 

[Leofric]

Tut, tut ... brush up on your Archimedes Principle.

Would that be the principle of filling the bath full up to the brim so that water is displaced when you get in

 

[JohnD]

doesn't need to be filled to the brim. If you are floating, you will displace your weight in water.

If you are thin, or not fully immersed, you will displace only your immersed volume in water, which will be less.