On 8 Jul 2003 16:27:48 -0700, firstname.lastname@example.org (Jon Weaver)
They're not. The point of steelwork in concrete is to compress the
concrete by pre-tensioning the steelwork. For this you can treat each
steel rod as a piece of flexible string - it doesn't matter what
happens, so long as it supports this tension. So any attempt to weld
the steel and make it "stiffer" as a structure is basically pointless.
Steel is often pre-welded into a grid, but that's just for convenience
in handling. Similarly the use of wire ties to hold it in the right
On Sat, 12 Jul 2003 13:20:40 +0100, Andrew Heggie
< email@example.com wrote:
Yes, _pre-_tensioning was inaccurate wording on my part. That's just
if they're tensioned whilst curing. The others only come into force
if there's a tensile force or bending moment applied to the concrete.
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