Title:
Evaluation of the Stress-Strain Curve of Concrete in Flexure Using Method of Least Squares
Author(s):
Reginald G. Smith and Cornelius O. Oragun
Publication:
Journal Proceedings
Volume:
66
Issue:
7
Appears on pages(s):
553-559
Keywords:
beams (supports) ; computers; concretes; flexural strength; least squares method;moment- curvature relationship;moments;prestressed concrete; reinforced concrete;statically indeterminate structures;stress-strain diagram;structural analysis.
DOI:
10.14359/7380
Date:
7/1/1969
Abstract:
An analysis is developed for the determination of the compressive stress-strain curve of concrete in flexure. The method is based on using a "least squares" fit of a polynomial expression to experimental data from reinforced stressed is shown or pre-concrete beam tests. It that the method gives better correlation with experimentally measured moments than the finite difference analysis and can be easily adapted to the computer.