Permissible (Allowable) stresses in tension.& Strength (Load carrying capacity) of a tension member.

                    
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► Permissible (Allowable) stresses in tension.
            The permissible stress in axial tension on the net effective area of the section shall not exceed 0.6 times the minimum yield stress of steel .

The permissible stress in axial tension for steel conforming to IS: 226-1975 are given in below:-

                        Table 1. Allowable stresses in Axial Tension.

                           (For steel confirming to IS: 226-1975)

S. No.

Form of rolled steel section of Tension Member

Diameter/Thickness

Value of N/mm2

      1.

Plates, flats, angles, beams, channels, and tee-section

Upto and including 20mm

Above 20mm and ≤ 40mm

> 40mm

150

144

138

      2.

Bars (square, round, and hexagonal )

Upto and including 20mm

   > 20 mm

150

144

 








► Strength (Load carrying capacity) of a tension member.

              The tensile strength (or load carrying capacity) of a member subjected to axial tension is given by the relation.

Tensile strength = Net area × Permissible tensile stress

Note: The tensile strength of a member depends upon net area.

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