Reinforced Concrete; a Treatise On Cement, Concrete, And Concrete Steel, And Their Applications ...
Reinforced Concrete; a Treatise On Cement, Concrete, And Concrete Steel, And Their Applications ...
Walter Loring Webb , W. Herbert Gibson
The book Reinforced Concrete; a Treatise On Cement, Concrete, And Concrete Steel, And Their Applications ... was written by author Walter Loring Webb , W. Herbert Gibson Here you can read free online of Reinforced Concrete; a Treatise On Cement, Concrete, And Concrete Steel, And Their Applications ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Reinforced Concrete; a Treatise On Cement, Concrete, And Concrete Steel, And Their Applications ... a good or bad book?
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The equation shows that k, the ratio determining the position of the neutral axis, depends on three variables — ^namely, the percentage of the steel (p), the ratio of the moduli of elasticities (r), and the ratio of tlie deforma- tions in the concrete (q). These must all be determined more or less accurately before we can- know the position of the neutral axis. On the other hand, if it were necossSLiy to work out equation 8, as well as many others, for every computation in reinforced concrete, ...the calculations would be impracticably tedious. Fortunately the extreme range in k for any one ratio of moduli of elasticities, is only a few per cent, even when q varies from to 1. We shall there- fore simplify the calculations by using the constant value q = ^, aa explained above. Substituting q ='^ in Equation 8, we have =v? >%, + _;■ p.^-|;, (9) The various values for the ratio of the moduli of elasticity (r) are discussed in the succeeding section. The values of k for various values of r and p, and for the unifoiin value ofq = J, have been com- puted in the following tabular form.
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