Detailing of bolts and welds according to Russian standards

Bolts

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

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

Minimum edge distance is 2 · d for steel with R_yn ≤ 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 R_yn ≤ 375 MPa and 3 · d otherwise.

Minimum edge distance is 1.3 · d.

Anchors

The spacing between anchors should be greater than six times anchor diameter. This value depends on anchor type and can be modified in Code setup.

Minimum plate edge distance follows the rules for bolts.

Welds

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

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