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RE: 3000 psi concrete and special inspection

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But would you really consider walkways and patios part of the "structure"?

Section 1921.2.1.1 states:

"Section 1921 contains special requirements for design and construction of
reinforced concrete members of a STRUCTURE for which the design..." (note
I added the emphasis)

I am no sure that I would consider a walkway or patio as part of the
structure.  Beyond that, I doubt there would be very many situations where
a patio slab or walkway slab would be "resisting earthquake-induced
forces" (i.e. part of the seismic lateral system).

So, I don't think that walkways or patio slabs would require 3000 psi
concrete (unless maybe they also act as a roof slab to a lower lever and
thus maybe also as a diaphram).


Adrian, MI

On Wed, 16 Feb 2005, S. Gordin wrote:

> Third, strictly speaking, any formal, to-the-letter, interpretation of
> Section 1921.2.1 would necessarily include walkways and patios into the
> "Scope" requiring 3,000 PSI concrete...

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