Section 408.42616. Walking and working surfaces.

(1) Shear connectors, such as headed steel studs, steel bars, or steel lugs, reinforcing bars, deformed anchors, or threaded studs shall not be attached to the top flanges of beams, joists, or beam attachments so that they project vertically from or horizontally across the top flange of the member until after the metal decking or other walking/working surface has been installed.

(2)   If shear connectors are used in the construction of composite floors, roofs, and bridge decks, then employees shall lay out and install the shear connectors after the metal decking has been installed, using the metal decking as a working platform. Shear connectors shall not be installed from within a controlled decking zone (CDZ), as specified in R 408.42648(1)(g).

(3)   Slip resistance of skeletal structural steel. Workers shall not be permitted to walk the top surface of any structural steel member installed after July 18, 2006, that has been coated with paint or similar material, unless documentation or certification that the coating has achieved a minimum average slip resistance of .50 when measured with an English XL tribometer or equivalent tester on a wetted surface at a testing laboratory is provided. Such documentation or certification shall be based on the appropriate ASTM standard test method conducted by a laboratory capable  of performing  the test.  The results shall be available at the site and to the steel erector.

Appendix B references appropriate ASTM standard test methods that may be used to comply with this subrule.

History: 2002 AACS; 2007 AACS.