These slides describe end & edge distance and how to calculate Yielding in Gross Area for the tensile members. Thank You.

2. Topic –
Steel Design –
Yielding in Gross Area

3. End and Edge Distance?
Pitch?

5. End and Edge Distance (CISC Handbook)
Minimum End Distance – 1.5*Bolt Diameter
Minimum Edge Distance – Table 6
Maximum Edge Distance – Less than (12*thickness of
outside part or 150mm)

6. Pitch
Pitch – Center to Center Spacing of Hole
Minimum – 2.7* Bolt Diameter

7. End , Edge and Pitch
Bolt Diameter = 22mm
Min. End Dist. = 1.5*22 = 33 mm
Min. Edge Dist. = 38 mm (Table 6 )
Min. Pitch = 2.7*22 = 59.4 mm

9. Yielding in Gross Area
𝑇𝑟 = 𝜑 ∗ 𝐴𝑔 ∗ 𝐹𝑦
L203x203x11
Ag = 6520 mm^2
Material G40.21 350 W
Fy= 350 MPa

10. 𝑇𝑟 = 𝜑 ∗ 𝐴𝑔 ∗ 𝐹𝑦
= 0.9 * 6520 *350
= 2053.8 KN
Tensile Capacity = 2053.8 KN (Yielding in Gross
Area)

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