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https://archinect.com/people/project/50 ... e/50351206
But according to the framing information that was sent to me( and which is now in the hands of SDR,GDorn,and even posted below) the end of the deck cantilever as built is not a wood "double header". Rather it is a steel channel. She also seems to miss the fact that the floor of Affleck is a suspended concrete slab on steel framing.
I wonder how they built this suspended concrete!Tom wrote: ↑Mon Apr 13, 2020 8:29 pmThis would be a good place to start:
https://archinect.com/people/project/50 ... e/50351206
... the floor of Affleck is a suspended concrete slab on steel.
is it say 150mm thick cast on the steel ?( with plywood formwork)
or a thin slab - say 50mm slab on cement sheet on timber joists?
The Pew house drawings ( attached below) shows how a brick floor was built over a sheet of (presumably) cement board on timber joists.
Is there an Affleck section detail showing the floor construction?
The only evidence I really have for that are photographs that exists here and there.
It sure looks like concrete to me.
Which would account for just why there is so much steel in the framing of the suspended floor.
(Not sure but I think I remember that the floor of the deck looks like concrete too)
But I'll get the Monograph off the shelf and see what I can find.
Parking Datum 0.0
Living Floor 0.0
maid room - 8'2"
Roof Terrace datum +9'9"
Shop - 4'8" ?
top of chimney +14'3"
Bedroom ceiling - 10 units
Bedroom FL to Living FL - 4 units
Loggia ceiling - 14 units
living terrace structure depth - 2 units
Living terrace balustrade 4 units + 2 units = 6 units
Living Trellis soffit -9 units
Living ceiling - 12 units
top of roof 15 units
Roof deck structure height - 1 unit
bedroom /loggia roof structure depth - 1 unit
living trellis depth - 1 unit
bedroom windows sill - 4 units
Thus if FFL living to bedroom is 3' = 36" = 900mm and there is 4 units, then each unit is 9 " = 225mm
On the Affleck sheet labeled MAIN LEVEL W/ FRAMING IN RED, above, a note at far left reads "control joint"--an indication of concrete ?
Photo on Affleck terrace showing concrete slab: https://bloximages.chicago2.vip.townnew ... 1200%2C803
The Lloyd Lewis residence, a brick and lapped-board Usonian dated 1939, has a vertical unit of 9", or three brick courses. See note, bottom right.
more photos here
https://www.mlive.com/news/detroit/2015 ... d_wri.html
says Drawings form Survey HABS MI-120
https://www.loc.gov/resource/hhh.mi0750 ... =1&st=grid
photos and data of works and survey (2017)- not may photos! - mostly text
https://tile.loc.gov/storage-services/m ... 50data.pdf
"Structural System, framing: All of the major exterior and some of the interior walls are of load-bearing brick masonry. The wooden walls have a 3/4" plywood core but no rigid framework. The openings, however, have wooden beams and posts as supports. The floor framing consists of transverse and longitudinal wide flange steel beams resting on the load-bearing walls. The use of steel beams also helped Wright achieve the significant lengths of the cantilevered floor. The cantilevered portions of the floor have wooden joists as secondary beams. Crushed rock and concrete mat floors are used on grade as building material for the floor.
The roof was originally designed as a structural deck. Its framing consists of 3/4" plywood decking on top of 2” x 6” wooden rafters spaced approximately at 2’-0” on- center over a 16’-0” span. The rafters rest on load-bearing masonry brick walls.
bricks are 8” x 3-1/2” x 2-15/6”
bedroom wing brickwork is 8” thick = 3-1/2 + 1" cavity +3-1/2
https://www.yumpu.com/en/document/read/ ... nological-
And Exhibition booklet - some 115 pages!
https://www.yumpu.com/en/document/read/ ... university
and it has a couple of drawing sheets showing details pg 38/39- but zoom quality is poor - bugger!
downloading it was not better
on Roof Framing plan
There is a a detail which reads
CANTILEVER BEAM -
I Reckon this beam either
a.) goes from the chimney mass, past the loggia trellis to the end of the living room roof
a 2.4m * (8') backspan and 6.0m (20') cantilever - Nice one Taliesin
It would be supporting the Living roof terrace decking
you can see where it would go in the Long Section
b.) its projects from the entry brickwork to the Carport roof edge to support the carport roof Framing
so a 2.4m * (8') backspan and 6.0m (20') cantilever - Nice one
carport roof has a dropped ceiling ( according to elevation) to accommodate this beam
Affleck sh 2 floor plan + long section by g dorn, on Flickr
affleck sh3 roof framing by g dorn, on Flickr
Affleck Sh 5 millwork by g dorn, on Flickr
So one end of this steel beam I guess is bedded into the fire place brickwork, and the other end on the cupboard brickwork?
as far as can tell the section detail on far right side of Roof plan shows this - with workspace roof box gutter behind
and Is this steel beam the hatched line thats on the Mainlevel.jpg sheet