'K' tables for concrete[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: 'K' tables for concrete
- From: Robert Rollo <rrollo(--nospam--at)TEAM-PSC.com>
- Date: Mon, 10 Apr 2000 13:14:48 -0500
In our office we have K-charts for use in reinforcing selection for concrete and in fact have a spreadsheet that publishes these values for different combinations of conc and steel strengths. These charts have 3 lines on them, rho min, rho max, and an intermediate line. When I first was introduced to the chart, it was explained that the intermediate line represented a rule-of-thumb "you might want to change your section if your k value is below this line." There are notes on one of our older charts saying that a cracked section deflection computation should be used beyond the intermediate line. Seems like this line was based upon research by some individual, but i cannot recall the name or locate any published reference material on this.
Does anyone know what i am referring to and/or have a reference that would detail exactly what the line really represents, and a formula that would give us the correct intermediate line?
thanks in advance
r o b e r t d. r o l l o
Parkhill, Smith & Cooper, Inc.
4222 85th st
Lubbock, Texas 79423
(806) 473-2200 vox
(806) 473-3500 fax
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