Further Notes on Reinforced Concrete Columns

Author: King, Jeffrey William Hitchen

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Further Notes on Reinforced Concrete Columns

The Structural Engineer
Further Notes on Reinforced Concrete Columns
Date published

N/A

First published

N/A

Author

King, Jeffrey William Hitchen

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now

In an earlier paper on "The Effect of Lateral Reinforcement in Reinforced Concrete Columns,” published in the July issue of THE STRUCTURAL ENGINEER, the results of a series of tests on small columns with varying reinforcement were analysed, and a formula evolved which fitted the observed values of ultimate load on the columns within 4 per cent. The columns from which the formula was derived were a standard size, 11.7 in. long X 3.5 in. square, having longitudinal bars, four in number, arranged as a square of overall dimensions 2.5 in. X 2.5 in., and binders of the same internal dimension. Working with a concrete giving a cube strength on 4 in. cubes at 28 days of about 4,000 Ibs. per sq. in., and a range of longitudinal steel from 1/2 in. bars to zero, with binders of pitches from 3/4 in. to 11 1/2 in. of 14 to 4 gauge bright drawn wire, the formula evolved was: Ultimate Load = A.w + B.x + C.y + D.z Jeffrey William Hitchen King

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The Institution of Structural Engineers

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Issue 11

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