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BXUV.D779 - Fire Resistance Ratings - ANSI/UL 263 Page 1 of 4 <br />ONLINE GERTIFIGATIOXS OiREGTORY <br />B:;UV.D779 <br />Fire Resistance Ratings - ANSI/UL 263 <br />2age_0911gID <br />Fire Resistance Ratings - ANSI/UL 263 <br />Cn General Informa['on for Fite Rest stan a Ratings -ANSI/UL 263 <br />Design No. D779 <br />October 01, 2007 <br />Restrained Assembly Ratings — 1, 1.1/2, 2, 3 •4 H <br />Unrestrained Assembly Ratings — 1, 1-1/2, 2, 3 • 4 H <br />Unrestrained Beam Ratings — 1, 1-1/2, 2, 3Ik 4 H <br />Restricted Load Condition — See Items 1 and 6 <br />Load Restricted for Canadian Applications — See Guide 0XUY7 <br />2 <br />0' <br />1. Supports — W8 x 28 or alternate (per Section IV.6 in the front of the Fire Resistance Directory) steel beam or min SK1 <br />steel joists when joist substitution applied. <br />Note: 30ists from the N series designs may be substituted for the listed beam (Item 1). When joists are <br />substituted, the restrained rating of the joist must be equal to or greater that the restrained rating of the <br />assembly. Additional joist substitution requirements are contained in the front of the Fire Resistance Directory. <br />2. Normal Weight or Lightweight Concrete — Normal weight concrete, carbonate or siliceous aggregate, 145 Pcf plus <br />or minus 3 pcf unit weight, 3000 psi compressive strength, vibrated. Lightweight concrete, expanded shale, clay, or slate <br />aggregate by rotary -kiln method 102-120 pcf unit weight, 3000 psi compressive strength, vibrated, 4 to 7 percent air. Min <br />thickness as measured to crests of steel Floor and form units, 2-1/2 in. <br />3. Welded Wire Fabric — 6 x 6 - W 1.4 x W 1.4. <br />3A. Fiber Reinforcement — As an alternate to item 3, engineered synthetic fibers added to concrete mix to control <br />shrinkage cracks in concrete. See Fiber Reinforcement (CBXQ) category in the Fire Resistance Directory for names of <br />manufacturers and rates of application. <br />4. Steel Floor and Form Units — Composite 1-1/2, 2, or 3 in. deep galy units. Min gauge is 22 MSG. <br />CANAM STEEL CORP — 24 in. wide Type P-2432 composite or 361n. wide Type P-3623,P-3606, and P-2432 composite. <br />CONSOLIDATED SYSTEMS INC — 24 in. wide Types CFD-2, 3, 24, 30, or 36 in. wide Type CFD-1.5. Units may be <br />phos/ptd. <br />ll"p <br />:H(latabase.ui.com/cg,i-biii[XYV/template/I,ISEXT/I FRAME/showpage.html?name=... 11 / 14/2007 <br />