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<br />SECTION 3A <br /> <br />SCREEN, ACRYLIC & VINYL ROOMS <br /> <br />Table 3A.1.1-120 Allowable Edge Beam Spans - Hollow Extrusions <br />for Screen. Acrylic or Vinyl Rooms <br />For 3 second wind gust at 120 MPH velocity; using design load of 13.0 #/SF (48.3 #/SF for Max. Cantilever) <br />Aluminum Alloy 6063 T-6 <br /> <br />2" x 2" x 0.044" 2" x 2" x 0.055" <br />Load Max. Span 'L' / (bending 'b' or deflection 'd') Load Max. Span 'L' / (bending 'b' or deflection 'd') <br />Width (ft.) 1 & 2 Span 3 Span 4 Span Max. Width (ft.) 1 & 2 Span 3 Span 4 Span Max. <br /> Cantilever Cantilever <br />5 5'-1" d 6'-3- d 6'-4- d 0'.11- d 5 5'-4- d 6'.7" d 6'-9- d 1'-0- d <br />6 4'-9- d 5'-10- d 5'-11- b 0'-11" d 6 5'-0" d 6'-3- d 6'-4- d 0'-11- d <br />7 4'.6" d 5'-7" d 5'-6- b 0'.10- d 7 4'.9- d 5'-11- d 5'-11- b 0'.11- d <br />8 4'-4- d 5'-4- b 5'-1- b 0'-10- d 8 4'-7" d 5'-8- d 5'.7" b 0'-10- d <br />9 4'-2- d 5'-0" b 4'-10- b 0'-10" d 9 4'-5- d 5'-5- d 5'-3- b 0'-10" d <br />10 4'-0" d 4'-9- b 4'-7" b O'-g" d 10 4'-3- d 5'.2- b 5'-0" b 0'-10- d <br />11 3'-11" d 4'-6- b 4'-4- b O'-g- d 11 4'-1- d 4'-11- b 4'-9- b O'-g- d <br />12 3'-9" d 4'-4- b 4'-2- b O'.g- d 12 3'.11- d 4'-9- b 4'-7" b O'-g- d <br />3" x 2" x 0.045" 3" x 2" x 0.070" <br />Load Max. Span 'L'/ (bending 'b' or deflection 'd') Load Max. Span 'L' / (bending 'b' or deflection 'd') <br />Width (ft.) 1 & 2 Span 3 Span 4 Span Max. Width (ft.) 1 & 2 Span 3 Span 4 Span Max. <br /> Cantilever Cantilever <br />5 5'-8" d 7'-1- d 7'-2" d 1'-1" d 5 6'.5- d 7'-11 " d 8'-1- d 1'.3- d <br />6 5'-4" d 6'.8" d 6'.9" d 1'-0- d 6 6'-0" d 7'-5- d 7'.7" d 1'-2- d <br />7 5'-1" d 6'-4" d 6'-4" b 0'-11" d 7 5'-9" d 7'-1" d 7'-3- d 1'-1" d <br />8 4'-11 " d 6'-0- d 5'-11" b 0'-11" d 8 5'-6- d 6'-9" d 6'.11- d 1'-1" d <br />9 4'-8" d 5'-9- b 5'-7" b 0'.11" d 9 5'-3" d 6'-6- d 6'-6" b 1'-0- d <br />10 4'-6- d 5'-6- b 5'-3" b 0'-10" d 10 5'-1" d 6'-3" d 6'-2- b 0'.11" d <br />11 4'-5- d 5'-2" b 5'-0" b 0'-10- d 11 4'-11- d 6'-1" d 5'-11 " b 0'-11" d <br />12 4'-3" d 4'-11- b 4'-10" b 0'-10" d 12 4'-9- d 5'.10" b 5'-8" b 0'-11" d <br />2" x 3" x 0.045" 2" x 4" x 0.050" <br />Load Max. Span 'L' / (bending 'b' or deflection 'd') Load Max. Span 'L' / (bending 'b' or deflection 'd') <br />Width (ft.) 1 & 2 Span 3 Span 4 Span Max. Width (ft.) 1 & 2 Span 3 Span 4 Span Max. <br /> Cantilever Cantilever <br />5 7'.1" d 8'-9" d 8'-9" b 1'-4" d 5 9'-2" d 11'-4" d 11'-2" b 1'-9" d <br />6 6'-8" d 8'-3" d 7'-11- b 1'-3- d 6 8'-8- d 10'-7" b 10'-3- b 1'-8" d <br />7 6'-4- d 7'-8" b 7'-5" b 1'-3" d 7 8'.2- d g'-g- b 9'-5- b 1'.7" d <br />8 6'-1" d 7'-2- b 6'-11 " b 1'-2" d 8 7'-10" d 9'.2" b 8'.10" b 1'-6" d <br />9 5'-10" d 6'.9- b 6'-6" b 1'.1" d 9 7'-6" d 8'.8" b 8'-4" b 1'-5" d <br />10 5'.7" d 6'-5" b 6'-2" b 1'-1" d 10 7'-3" d 8'-2" b 7'-11- b 1'-5" d <br />11 5'-5- d 6'-1- b 5'-11" b 1'-0" d 11 6'-11- b 7'-10" b 7'-7" b 1'-4- d <br />12 5'-3- b 5'.10- b 5'-8- b 1'-0" d 12 6'-8" b 7'-6" b 7'-3- b 1'-4" d <br /> <br />Notes: <br />1, Above spans do not include length of knee brace. Add horizontal distance from upright to center of brace to beam <br />connection to the above spans for total beam spans. <br />2, Spans may be interpolated. <br /> <br />Lawrence E. Bennett, P.E. FL # 16644 <br />CIVIL & STRUCTURAL ENGINEERING <br /> <br />P.O. Box 214368, Sooth Daytona. FI32121 <br />Telephone #: (386) 767-4774 Fax #: (386) 767-6556 <br />Email: lebpe@bellsoulh.nel <br /> <br />PAGE <br /> <br />3A-12 <br /> <br />@ COPYRIGHT 2006 <br />NOT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT THE WRITTEN PERMISSION OF LAWRENCE E. BENNETT, P.E. <br />