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Building Design and Construction Handbook - Merritt - Ventech!

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COLD-FORMED STEEL CONSTRUCTION 8.47<br />

FIGURE 8.16 Roof-deck details.<br />

The UL ‘‘Fire Resistance Directory,’’ Underwriter’s Laboratories, Inc., 333<br />

Pfingsten Rd., Northbrook, IL 60062, lists fire-resistance ratings for steel roof-deck<br />

construction. Some systems with fire ratings up to 2 h are listed in Table 8.14.<br />

8.22 CELLULAR STEEL FLOOR AND ROOF<br />

PANELS*<br />

Several different designs of cellular steel panels <strong>and</strong> fluted steel panels for floor<br />

<strong>and</strong> roof construction are available. Sections of some of these panels are illustrated<br />

in Fig. 8.17.<br />

8.22.1 Cellular-Steel-Floor Raceway System<br />

One form of cellular steel floor assembly with a distribution system for electrical<br />

wiring, telephone cables, <strong>and</strong> data cables is described below <strong>and</strong> is illustrated in<br />

Fig. 8.18. This system is used in many kinds of structures, including massive highrise<br />

buildings for institutional, business, <strong>and</strong> mercantile occupancies.<br />

The cellular-steel-floor raceway system is basically a profiled steel deck containing<br />

wiring raceways <strong>and</strong> having structural concrete on top. The cellular deck<br />

* Courtesy of R. E. Albrecht, Engineer, H. H. Robertson Company, Ambridge, Pa.

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