Message - Re: Future High Rise Design: More Concrete

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Posted by  d on September 19, 2002 at 15:28:16:

In Reply to:  Re: Future High Rise Design: More Concrete posted by Kevin Matthews on September 19, 2002 at 14:14:12:


There is a fascinating history to the "knee-pieces" of medieval shipbuilding, which I think may set them apart somewhat from other diagonals...
In England, at least, an early form of forest-conservation involved the growing of what were call "coppice and standards".
This was apparently an intentionally isolated grove of oaks, placed and I suppose pruned so that the central trees grew straight up- I guess for masts or straight timbers- while the outer limbs were
forced to curve dramatically to seek light....
The curved pieces were then cut to form extra-strong "knees", as you mention; but I believe these "kneepieces" were solidly connected to the deck and walls of a ship throughout their length, as an angle iron might connect two boards..
This was done, of course , for maximizing both the rigidity of the connection, and the clear space of a hold-
Which is, I suppose, one reason we don't see as much triangulation in walls as might be structurally useful; it blocks access and light...

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