Verify vertical and horizontal alignment of structural steel members, using plumb bobs, laser equipment, transit, or levels. Connect columns, beams and girders with bolts, following instructions from supervisors. Hoist steel beams, girders and columns into place, using canes, or signal hoisting equipment operators to lift and position structural-steel members. Bolt aligned structural steel members in position for permanent riveting, bolting, or welding into place. Pull, push, or pry structural steel members into approximate positions for bolting into place.