Section 408.42626. Column anchorage, erection stability, repair, replacement, and anchor rods (anchor bolts).

(1) All columns shall be anchored by a minimum of 4 anchor rods (anchor bolts).

(2)   Each column anchor rod, or anchor bolt assembly, including the column-to-base plate weld and the column foundation, shall be designed to resist a minimum eccentric gravity load of 300 pounds (136.2 kg) located 18 inches (.46 m) from the extreme outer face of the column in each direction at the top of the column shaft.

(3)     Columns shall be set on level finished floors, pre-grouted leveling plates, leveling nuts, or shim packs that are adequate to transfer the construction loads.

(4)    All columns shall be evaluated by a competent person to determine whether guying or bracing is needed. If guying or bracing is needed, then the employer shall have it installed.

(5)    Anchor rods (anchor bolts) shall not be repaired, replaced, or field-modified without the approval of the project structural engineer of record.

(6)   Before the erection of a column, the controlling contractor shall provide written notification to the steel erector if there has been any repair, replacement, or modification

of the anchor rods, or anchor bolts, of that column.

History: 2002 AACS; 2014 AACS.