Detailing of bolts and welds according to AISC

Bolts

The minimum spacing between bolts and distance to the bolt centre to an edge of a connected part are checked. The minimum spacing 2.66 times (editable in Code setup) the nominal bolt diameter between centres of bolts is checked according to AISC 360-16 – J.3.3. The minimum distance to the bolt centre to an edge of a connected part is checked according to AISC 360-16 – J.3.4; the values are in Table J3.4 and J3.4M.

Welds

The minimal and maximal weld size and the sufficient length of the weld are checked.

The maximal weld size is checked according to AISC 360-16 – J2.2b:

  • For thinner plate thickness up to 3/16 in the weld size should be no bigger than plate thickness.
  • For thinner plate thickness higher than 3/16 in and smaller than 1/4 in the weld size should be no bigger than 3/16 in.
  • For thinner plate thickness higher than 1/4 in the weld size should be no bigger than 1/4−1/16 in.

The minimal weld size is checked according to Table J2.4:

  • For thinner plate thickness to 1/4 in the weld size should be higher than or equal to 1/8 in.
  • For thinner plate thickness over 1/4 in to 1/2 in the weld size should be higher than or equal to 3/16 in.
  • For thinner plate thickness over 1/2 in to 3/4 in the weld size should be higher than or equal to 1/4 in.
  • For thinner plate thickness over 3/4 in the weld size should be higher than or equal to 5/16 in.

The minimum length of fillet welds should not be less than four times the weld size according to J2.2b (c).

Anchors

The spacing between anchors should be greater than 4 times anchor diameter according to ACI 318-14 – 17.7.1.

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