Detailing of bolts and welds and anchors according to SP

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Bolts

Minimum pitch and minimum edge distance are checked according to SP 16, Table 40.

Minimum pitch is 2.5· d for steel with Ryn ≤ 375 MPa and 3 · d otherwise.

Minimum edge distance is 2 · d for steel with Ryn ≤ 375 MPa and 2.5 · d otherwise in the direction of the shear load. Minimum edge distance is 1.35 · d in the direction perpendicular to the shear load. Minimum edge distances may be smaller under some circumstances specified in SP 16, Table 40. If these conditions are met, user can deactivate the detailing check. However, the check of bolts in bearing may not be performed.

Preloaded bolts

Minimum pitch and minimum edge distance are checked according to SP 16, Table 40.

Minimum pitch is 2.5 · d for steel with Ryn ≤ 375 MPa and 3 · d otherwise.

Minimum edge distance is 1.3 · d.

Welds

The detailing of welds is checked according to SP 16, Cl. 14.1.7. The maximum fillet weld size, kf,max, should be smaller than 1.2 · tmin, where tmin is the thickness of the thinner connected plate. The minimum fillet weld size, kf,min, is checked according to SP 16, Table 38. Thickness tmax is the thickest of the plates being welded.

  • For \(t_{min} < 0.6 \cdot t_{max}\) – kf,min = tmin for one-sided fillet weld and \( k_{f,min} = t_{min} / \sqrt{2} \) for two-sided fillet weld  
  • For \(t_{min} \ge 0.6 \cdot t_{max}\) – kf,min is selected from the table below

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