This section provides a calculator to estimate the strength of rectangular
section of a
reinforced concrete beam (singly or doubly reinforced).
You can use this
calculator for either
Inch-Pound/FPS (north American) or
systems of units.
The following assumptions as per ACI
(American Concrete Institute) are adopted in developing the
Calculator for the strength of RC beam:
Ultimate compressive strain in
concrete is equal to 0.003.
Tensile strength of concrete is
Strain varies linearly over the
depth of the cross section.
Steel stress varies linearly
until yielding and remains constant beyond yielding.
Compressive force in the
concrete is determined from Whitney's equivalent stress block.
Easy to use calculator for solving Indeterminate beams with
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