They weren't kidding about a 14' basement!
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They weren't kidding about a 14' basement!
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14' basement. 2+ foot slab.
All is forgiven; provided
1] the 14' is headroom allowance for a 1.5 ton overhung bridge crane.
2] it's travel connects three major machine tools also located in basement 24" x 80 engine lathe, 4'' horizontal boring mill and a 5' x 11'' radial drill.
3] remedy access issue, no forklift ramp!
when jdurand sends pics of floor joists going in without iron in the basement, we'll know a owner off his rocker.
I am thinking the wall may be 14 feet but the actual ceiling height will be much less due in part to the ground floor mechanicals and utilities
Today's picture, MORE rebar.
Also I see they'r fitting the forms to their precisely cast columns/wall
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Today's update
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O hope once they get around to setting the inside forms they support them better than the ones on the outside.
Second layer of wall rebar going in. MORE STEEL!
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My uncle put in 10 or 12 foot basement
The problem with that is it’s a death trap
During a fire I could not reach a window to get out
Here our building code says you have to be able to escape a basement in "one step" to daylight. I see they've got space for a window well on all 4 sides of the basement so those will probably have glass doors and ladders.
Over the weekend and today they're just adding more rebar. Looks like an iron mine.
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Today there was a VERY LOUD sawing sound, it turns out they were cutting slots in the forms with a reciprocating saw.
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And here's what the slots were for. A neighbor and I figured out it's to tie a garage floor to the building.
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This is starting to get where my naighbor wants a drone to get better views. Anyone got a camera drone they don't need? Only needs to fly long enough to snap a picture or two before recharge.
I used to have a nice tall redwood tree right alongside the fence that would be perfect for a camera, but they cut it down. :( Originally expected US to pay for the cutting down.
Not too much changed today, they've added a ramp and are putting sill plate bolts around the forms. Also continuing to add more rebar and ties.
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No work today in the pit, but along with the sill plate bolts they've put in a few pairs of LARGE bolts. One pair can be seen sitting on the table below and you can see a couple pair installed on the far wall. Big beams go here? Maybe the mount for that overhead crane to move around the pallets of gold bullion?
They've also closed off the door in the forms, added a ramp and a ladder to get in/out.
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One of the reasons why I questioned the bracing on the wall forms I know OSB is supposedly stronger than plywood but At 14 ft in height to me at least there appears to be a lacking in bracing. We'll just have to wait to see how many through ties they put to hold the inside form to the outside form
Normally, I think it's uncommon building a dungeon to be so openly displayed.
I just re-solved their construction theory, formerly to show the material supplier how they can sell concrete and iron, to new reason.
They saw jdurand's threateningly mischievous avatar. . .
Here's today's picture, inside forms are going up. I see from their placement that the first floor will be cement, unless there's some other reason to leave rebar above the wall height.
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If it were me building it as soon as all of the inside forms were in place then use something like waffle dome forms supported by beams and support jacks pouring the basement wall and the ground floor in the same pour
https://www.concreteconstruction.net...n-room-floor_o
But they are going to need to install a lot of these to hold those flimsy looking OSB wood forms in place
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Ok, they took a left turn on the forms. They're putting a narrow section on top, so I guess the idea is to make a shelf to put the floor beams on. Not sure how easy it will be to fill the forms through the small opening but that's not my problem.
Also, some new, different anchor bolts in the second picture.
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They can pump the concrete in through a 4" opening easy enough but it takes longer to vibrate all the air pockets out.
At this point setting steel forms for a beam ledge leaves the design as a toss up. are they going to set gluelams or steel beams the ledge height suggest it could be almost anything even bar joists or precast.
That pattern of different anchor bolts suggests a location for a column if they install those in 6 or more locations that would be consistent with the need for hero columns meaning possibly more than 2 stories
Forms are slowly going in. There is ONE beam hanger that I can see, I assume another on this side. So, one cross beam?
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Today is bracing.
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More supports, wonder how many houses worth of wood this is?
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Cement pumper here, guys scurrying around finishing the forms.
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Pouring above, adding bracing below. No cement vibrator in sight.
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They all packed up and went home, but it looks like they forgot to finish one section.
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You mentioned you didn't see a single vibrator For a pour that high they must have used super plasticizers and maintained a very low air entrainment factor with small to medium aggregate not more then 1" the plasticizers would allow for a high workability with a high slump without the need to have a very wet mixture.
You also mentioned they were still adding more bracing could they also have been slapping the forms to settle the concrete. I doubt if I will ever understand why here in the states contractors use that OSB panel instead of Phenolic film plywood for their forms. I guess it boils down to cost and availability here in the USA.
We tend to think of it as an exotic form of plywood while in many countries it is considered the norm to be used as forming materials. One thing is for sure the 18mm phenolic plywood will yield a glass smooth finish to the pour.
Amen to that, Frank. Not only will the surface finish be smooth, but also when cutting these sheets,
the edges and its splints are sharp like razor wire, and won't easily bend or break away,
and these mothers will cut right thru your glove and into your hand like a surgeon's scalpel if you're not attentive.
This morning they topped off the part of the form that wasn't finished last night. I can't believe they left it partly filled overnight, that's got to make a poor seam.
They've spend the day stripping and cutting up the rest of the forms to haul off. I'll see about getting a photo when they knock off for the day.
Topped off the part they forgot.
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Some patching needed
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You see, they were going to use vibrators but when they called Good Vibrations and asked for a 14 foot vibrator the sales person passed out. :)
That's a poor quality pour the jack hammers should already be hammering away. But they will probably just spray it with shotcrete or gunite like you would do a pool and tell the homeowner that is how it should be done.
A lot of the forms are still up but I see they're carving on the bit they did uncover.
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something sure doesn't look as if it went exactly as planned but maybe they are having to carve due to a change after the forms had been put in place or maybe what ever needs placed there it is easier to carve out the relief. But for what ever reason there still seems to be a lot of voids tat are going to require filling which should not have happened. If you see voids like these in as many places as we can from our limited view angle there are probably even larger more numerous voids we cannot see. This pour needs sounded 100%.
If not then let's hope it is only a 1 or 2 story But I'm not up on residential all that much all I know is any civil engineer I ever worked with would have that entire pour brought down he wouldn't even consider allowing an inspector seeing it to write up a report. What would have been the big deal to rent a few vibrators for a day?