|
Post by Dan (Upstate NY, USA) on Jan 1, 2012 5:42:00 GMT -8
After much thought I scraped the idea of having the stove in my kitchen and piping the heat into a heat bench in the living room. Instead my wife and I figured out how to get it all in the living room without blocking any window light and getting about 30 feet (9 meters) of 8" (20cm) pipe in a heat bench. My nephew and I poured a steel reinforced 9 1/4" (23.5cm) footer for the stove in the basement. From here I will block up to the wood floor. Then I will cut the 3 joists out and pour a reinforced pad for the stove to sit on. Then I will run a steel I beam under the joists that will support the heat bench and put a jack beam under each joist to support the weight. Today's project is to raise the "bow" in the main beam in the house 1" to level the living room floor a bit. The joys of a 1860's farm house! Attachments:
|
|
|
Post by pasto76 on Jan 1, 2012 12:34:34 GMT -8
So you are going to build a masonry structure on top of this pad until it is on level with your living room floor?
if you are going to alter the structure of your house, just be careful. Im a structural ironworker and sometimes we have to alter structures, and it's pretty dangerous. Take time to really visualize the whole process to make sure everything will be support and nothing can fail.
If you arent consulting an engineer for this, a sort of rule of thumb is to just reinforce the shit out of it. My personal rule is "good enough", isnt. I want to look at it and think "hell yes, you can land a helicopter on this".
|
|
|
Post by Dan (Upstate NY, USA) on Jan 2, 2012 1:46:02 GMT -8
Pasto I do have to cut through three 2"x20" joists. The new "ends" of each of these joists will sit on concrete block that will sit on this new footer.
I do worry but I believe the cost of an engineer is better spent on doubling down material-wise on what the project calls for.
As a matter of fact as I was working on this last night I decided to pour a brand new footer for the mainbeam and add two more block supports for it before I continue on with the stove foundation. 95% of the weight of the stove will sit on the new burn tunnel foundation, the outside wall and the jack posts I put under the heat bench but the main beam footer and support seam to be my weak link right now.
|
|
|
Post by pasto76 on Jan 2, 2012 7:58:40 GMT -8
you sound like a man after my own heart.
If I can offer an analogy: when building scaffolding, the height is not allowed to exceed 4x the longest dimension of the base, unless it is tied into a structure. If your block work is going to be "a lot" higher than the longest dimension of the base, try and think of a way to reinforce it against sideways forces. Unless everything is perfectly plumb, level and square, there will always be some forces pushing out instead of down.
This is an interesting project, please some more pictures.
|
|
|
Post by Dan (Upstate NY, USA) on Jan 4, 2012 13:25:40 GMT -8
Yeah the cellar floor is dirt and the ceiling height is only 5 feet or less.
I worry less about side forces and more about the subsoil. The main beam sunk 1/2 inch because the footer that supported it sunk into the mud, luckily it sunk plumb.
No matter how I try the compact the soil the water table is almost always 4 feet under the soil level around here unless its a drought. If the footers sink unevenly THEN i have to worry about side forces.
I should pour half of the new main beam footer on Friday. This project is going to be pretty boring until I cut a hole in the first story floor but I'll post pictures anyways.
|
|
|
Post by pasto76 on Jan 5, 2012 7:26:53 GMT -8
wow. your soil is crazy. if you put a few vertical rebar in the blocks, or even lay some welded wire horizontally in a few courses, I think that would help with anything other than vertical pressures on a short structure like that. sounds fun. I realized that part of my envy is that my wife has strictly forbidden any type of project that means cutting holes into floors, walls, the roof and/or tunneling of any sort.
She's such a wet blanket.
|
|
|
Post by mintcake on Jan 6, 2012 11:33:49 GMT -8
I realized that part of my envy is that my wife has strictly forbidden any type of project that means cutting holes into floors, walls, the roof and/or tunneling of any sort. She's such a wet blanket. Not exactly a solution I'd recommend... but it worked here (though we don't have a suspended floor)... I've found evidence of woodworm and rot in the floors (100 year old brick walls, so not as scary as it might be).. My wife is now very happy for me to dig through the lounge floor's rotten wood and replace them with non-rotting concrete, just as long as I move the carpet out of the way first...
|
|
|
Post by Dan (Upstate NY, USA) on Jan 12, 2012 17:45:04 GMT -8
This first post set in concrete to Jack up the floor 1/2" (1.27cm). Attachments:
|
|
|
Post by Dan (Upstate NY, USA) on Jan 12, 2012 17:49:18 GMT -8
The second post, so far we have jacked 1/8 inch (3.175mm) for two weeks, I have to add one more post on the other side of the "sinking" block post before I am done. Should have the main beam were I want it by the 22nd and the old block post dismantled by then. Attachments:
|
|
|
Post by Dan (Upstate NY, USA) on Jan 12, 2012 17:53:52 GMT -8
And one of the three Steel "I" beams that will go directly under the rocket part of the stove. I will screw two more 4x6x105" (10.6x15.24x266cm) I Beams under there too and then start blocking up to it tomorrow. Attachments:
|
|
|
Post by pasto76 on Jan 13, 2012 8:46:05 GMT -8
very cool. keep the updates coming.
|
|
|
Post by Dan (Upstate NY, USA) on Jan 13, 2012 13:47:07 GMT -8
First course of block. Wow I usually take to all DIY tasks but laying block has made me much humbler. The rebar was drilled and epoxied in the footer. Only 5 more courses to go. Attachments:
|
|
|
Post by Dan (Upstate NY, USA) on Jan 13, 2012 13:50:11 GMT -8
And here is the second I beam. I decided against the third because I think I want an ash drop into the basement and the middle beam would block that. PS I got those I beams for 10$ a piece, can't beat that price. Attachments:
|
|
|
Post by Dan (Upstate NY, USA) on Jan 15, 2012 5:17:25 GMT -8
2nd Course... Attachments:
|
|
|
Post by Dan (Upstate NY, USA) on Jan 16, 2012 13:21:19 GMT -8
3rd course... Attachments:
|
|