The latter reinforcement is called compression steel.
2.
An "'under-reinforced "'beam is one in which the tension capacity of the tensile reinforcement is smaller than the combined compression capacity of the concrete and the compression steel ( under-reinforced at tensile face ).
3.
An "'over-reinforced "'beam is one in which the tension capacity of the tension steel is greater than the combined compression capacity of the concrete and the compression steel ( over-reinforced at tensile face ).
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