11.2Tension Members

11.2.1 Actual Tensile Stress

The actual tensile stress, $f_{\mathrm{i}}$ on the gross area of crosssection, $A_{\mathrm{g}}$ of plates, angles and other tension members shall be less than or equal to the smaller value of permissible tensile stresses, $f_{\mathrm{at}}$, as given below:

Actual tensile stress, $f_{\mathrm{t}}=T_{\mathrm{s}} / A_{\mathrm{s}}$

The permissible stress, $f_{\mathrm{at}}$ is smallest of the values as obtained below:

• a) As governed by yielding of gross section $f_{\mathrm{at}}=0.6 f_{y}$
• b) As governed by rupture of net section

1. Plates under tension $f_{\mathrm{at}}=0.69 T_{\mathrm{dn}} / A_{\mathrm{g}}$
2. Angles under tension $f_{\mathrm{at}}=0.69 T_{\mathrm{dn}} / A_{\mathrm{g}}$

• c) As governed by block shear $f_{\mathrm{at}}=0.69 T_{\mathrm{db}} / A_{\mathrm{g}}$

where

• $\begin{aligned} T_{s} & =\text { actual tension under working } \\ & \text { (service) load, }\end{aligned}$
• = gross area,
• $T_{\mathrm{dn}}=$ design strength in- tension of respective plate/angle calculated in accordance with 6.3, and
• $T_{\mathrm{db}}=$ design block shear strength in tension of respective plate/angle calculated in accordance with 6.4.