Article: Paul Hanna and the Hanna House - Stanford, CA

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Tom
Posts: 3148
Joined: Sun Jan 30, 2011 7:53 pm
Location: Black Mountain, NC

Post by Tom »

Thank you.
I think I've seen this letter before
Had forgotten.
I wonder if they positively tensioned the wire before subjecting the beam to loading.

SDR
Posts: 19304
Joined: Sat Jun 17, 2006 11:33 pm
Location: San Francisco

Post by SDR »

Good question. As I say, the wire was not in the end installed . . .

SDR

outside in
Posts: 1243
Joined: Sat Jul 29, 2006 9:02 pm
Location: chicago

Post by outside in »

Wright used a similar truss for the long span at the north porch (off of the dining room) at the Willits House in 1901. I looked into this, and found that it was an old way of providing additional support for beams in old barns - something that Wright may have experienced in Wisconsin as a kid.

SDR
Posts: 19304
Joined: Sat Jun 17, 2006 11:33 pm
Location: San Francisco

Post by SDR »

Do you find the size of the 1 3/4" dia pipes a bit excessive ? Wouldn't they have to be punched through the flitch plate, weakening it unnecessarily ?

SDR

Tom
Posts: 3148
Joined: Sun Jan 30, 2011 7:53 pm
Location: Black Mountain, NC

Post by Tom »

outside in wrote:Wright used a similar truss for the long span at the north porch (off of the dining room) at the Willits House in 1901. I looked into this, and found that it was an old way of providing additional support for beams in old barns - something that Wright may have experienced in Wisconsin as a kid.
So cool
So they would have only been able to give it as much "pretensioning" as muscle could provide I assume.

SDR - yeah, the 1.75 does seems large. I would have thought 1" max

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