Question about tank weight and floor joists?

[duke62]

My new tank is a 180 so the weight will weigh just around 2000 pounds. My tank can only fit in one spot which means it will only hit 2 floor joists going long ways.. I already have a lolly column and getting a 2ft 4x4 steel beam to put on the lolly column since i have pipes and a boiler in the way i can only fit 1 column and using the beam to catch the 2 joists so the lolly column will be in the center of the steel beam. On the left side of the tank is my main header which is 3 2x8s sandwiched together the left side of the tank will be 6in away from that header so Im not concerned about that side im a little concerned when it get to the center of the 10ft 2x8 but the lolly column with the steel beam will be right there. Should i add another 2x8 to the 2x8 joists that the tank will be sitting on or if the 2 joists with the lolly column and stell beam enough? Please only respond if you know the answer i did the guess work already myself

 

[thirty6]

Free bump for the last sentence! Pretty funny, but true

 

[edd]

i would remove the guess work and double up on the 2x8s and put the lolly at the end of tank. i have a 150 running parallel to the beams so i added 2 2x6 and beefed up a closet wall under the tank so i didn't need the lolly.

 

[duke62]

going to take a pic to show you guys my problems. I cant add a 2x8 all the way across the floor joists just from my main header to the lolly column. I have wires and pipes in the way so the new 2x8s will go from main header to steel beam with lolly column. I also cant put the lolly column at the end of the tank because that is where my sump is so it is at the 4ft mark of tank.

 

[duke62]

Im not using the 4x4 on top of lolly column. It is just temporary to figure out where im putting everything

 

[Gracias]

what's at the base of the lally column?

 

[duke62]

concrete floor

 

[Gracias]

Sorry - I wasn't to clear - You want to avoid what they call a "point load" on the concrete slab. If their is to much pressure on 1 point of the slab the concrete will eventually crack. Lally columns typically have a large concrete footing beneath the slab to avoid this. So I would recommend putting a 1'x1' steel plate at the base of the column to help spread the load.

 

[Pseudo]

+1 Agree with Gracias. We use 8x8 3/8" plates with our lolly columns with point loads over 1000lbs.

 

[fishman1069]

I agree with Gracias and Psudeo. You'll be fine with the set up as long as you distribute the weight at the base of the lolly

 

[peteyboyny]

Box out between the joists.

 

[duke62]

Ok i can get the steel plate no problem. I ill get a 2x8 and beef up the joists but like i said i can only go 6ft to the lolly column steel beam and end the new joist there.

 

[jerl77]

Tank over flows
Boiler is a goner ??

 

[cody0709]

That's only a 148 pounds per square foot, the beams you have and the additional support will suffice.
Plus you on an exterior wall which will give additional support.

 

[duke62]

Thanks Jerl always a optomist LOL. Yeah i know that already but all my sumps and equipment will be in the basement if anything overflows im hoping its them Plus only so much water can overflow before the pump seizes and thats only 20 gallons and the rug will suck most of that up

 

[cody0709]

3 days to go James!

 

[FMF0331]

http://www.youtube.com/watch?feature=player_detailpage&v=14fXm4FOMPM#t=14