Economic Aspects in the Design of Some Reinforced Concrete Structural Members

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Title: Economic Aspects in the Design of Some Reinforced Concrete Structural Members

Author(s): Dudley G. Norman

Publication: Journal Proceedings

Volume: 61

Issue: 4

Appears on pages(s): 419-440

Keywords:

Date: 4/1/1964

Abstract:
A relationship is expressed between the strength of concrete mixes and their cost, in terms of unit costs of the materials used in them. Expressions are then derived for the optimum dimensions of one-way slabs, two-way slabs, rec-tangular slabs, T-beams, and ribbed slabs, when subject to bending. Expressions are also derived for the cost of tied columns subjected to shear force. The cost of forming and of nominal reinforcement (for example, temperature steel) are considered. Both the British Standards and the ACI Code are used and, wherever appropriate, separate expressions are de-rived for each code of practice. The load factor methods of these codes are used when considering flexure and concentric thrust.