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. SCREEN, ACRYLIC I VINYL, GLASS & MODULAR ROOMS SECTION 3 Table 3.1.5 Allowable Upright Heights, Chair Rail Spans or Header Spans For Screen Rooms or Vinyl Rooms Aluminum Alloy 6063 T-6 For 3 second wind gust at 110 MPH velocity; using design load of 11 #/SF '~ a. Tributary Load Width 'W' = Purlin Spacing Sections 3'-0"" 3'-6" I 4'..0" I 4'-6" 5'-0" 5'-6" I 6'-0" I 6'-6" 7'-0" I 7'-6" Allowable Height 'H' I bending 'b' or deflection 'd' 2" x 2" x 0.044" Hollow 9'-5" b 8'-9" b 8'.2" b 7'.8" b 7'-4" b 6'-11" b 6'-8" b 6'-5" b 6'-2" b 5'-11 " b 2" x 2" x 0.055" Hollow 10'-3" b 9'-6" b 8'-11" b 8'.5" b 7'-11" b 7'.7" b 7'-3" b 6'-11" b 6'-9" b 6'-6" b 3" x 2" x 0.045" Hollow 11 '-3" b 10'-5" b 9'-9" b 9'-3" b 8'-9" b 8'-4" b 7'-11" b 7'-8" b 7'-5" b 7'.2" b 3" x 2" x 0.070" Hollow 12'-9" d 12'.2" d 11 '-7" d 10'-11" b 10' -5" b 9'-11" b 9'-6" b 9'-2" b 8'-10" b 8'-6" b 2" x 3" x 0.045" Hollow 12'-9" b 11 '-9" b 11 '-0" b 10'.5" b 9'-10" b 9'-5" b 8'-11" b 8'-8" b 8'-4" b 8'.1 " b 2" x 4" x 0.050" Hollow 16'-3" b 15'-1. b 14'-1" b 13'-3" b 12'-7" b '12'-0" b 11 '-6" b 11 '-0" b 10'-8" b 10'-3" b 2" x 5" x 0.050" S.M.B. 23'-7" b 21'-10" b 20'-5" b 19'-3" b ~ 17'-5" b 16'-8" b 16'-0" b 15'-5" b 14'-11" b 2" x 6" x 0.050" S.M.B. 26'-1" b 24'-2" b 22'-7" b 21 '-3" b 19'-3" b 18'-5" b 17'-9" b 17'-1" b 16'-6" b 2" x 2" x 0.044" Snap 11 '-3" b 10'-5" b 9'.9" b 9'-2" b 8'-3" b 7'-11" b 7'-7" b 7'-4" b 7'-1 " b 2" x 3" x 0.045" Snap 14'-4" b 13'-4" b 12'-5" b 11 '.9" b 11'"2" b 10'-7" b 10'-2" b 9'-9" b 9'-5" b 9'-1" b 2" x 4" x 0.045" Snap 17'-7" b 16'-3" b 15'-3" b 14'-4" b 13'-7" b 12'-11" b 12'.5" b 11'-11" b 11 '-6" b 11 '-1" b For 3 second wind gust at 120 MPH velocity; using design load of 13 #/SF Tributary Load Width W = Purlln Spacing Sections 3'-0'" I 3'-6" I 4'-0" 4'-6" 5'-0" I 5'-6" I 6'-0" 6'-6" I 7'-0" 7'-6" Allowable Height 'H' I bending 'b' or deflection 'd' 2" x 2" x 0.044" Hollow 8'-8" b 8'-0" b 7'-6" b 7'-1" b 6'-8" b 6'-5" b 6'-1" b 5'-11" b 5'-8" b 5'-6" b 2" x 2" x 0.055" Hollow 9'-5" b 8'-9" b 8'-2" b 7'.9" b 7'-4" b 6'-11" b 6'-8" b 6'.5" b 6'-2" b 5'-11" b 3" x 2" x 0.045" Hollow 10'-5" b 9'-7" b 8'-11" b 8'-6" b 8'-0" b 7'-8" b 7'-4" b 7'-1" b 6'-10" b 6'-7" b 3" x 2" x 0.070" Hollow 12'-1" d 11 '-5" b 10'-8" b 10' -1" b 9'-7" b 9'.2" b 8'-9" b 8'-5" b 8'-1 " b 7'-10" b 2" x 3" x 0.045" Hollow 12'-10" b 11'.11" b 11 '-2" b 10'-6" b 9'.11" b 9'-6" b 9'-1" b 8'-9" b 8'-5" b 8'.2" b 2" x 4" x 0.050" Hollow 14'-11" b 13'-10" b 12'-11" b 12' -2" b 11 '-7" b 11 '-0" b 10'-7" b 10'-2" b 9'.9" b 9'-5" b 2" x 5" x 0,050" S.M.B. 21 '-8" b 20'-1" b 18'-9" b 17'-9" b 16'-10" b 16'-0" b 15'-4" b 14'-9" b 14'-2" b 13'-9" b 2" x 6" x 0.050" S.M.B. 23'-11"b 22'-2" b 20'-9" b 19'-7" b 18'-7" b 17'.9" b 16'-11" b 16'-3" b 15'-8" b 15'-2" b 2" x 2" x 0.044" Snap 10'-4 " b 9'-7" b 8'-11" b 8'-5" b 7'-11 " b 7'-7" b 7'-4" b 7'-0" b 6'-9" b 6'-6" b 2" x 3" x 0.045" Snap 13'-3" b 12'.3" b 11 '-5" b 10'.a" b ':10'-3" b 9'-9" b 9'-4" b 8'-11" b 8'-8" b 8'-4" b 2" x 4" x 0.045" Snap 16'-2" b 14'-11" b 14'-0" b 13'-2" b 12'-6" b 11'-11" b 11' .5" b 10'-11" b 10'-7" b 10'-3" b For 3 second wind gust at 130 MPH velocity; using design load of 15 #/SF Tributary Load Width 'W' = Purlln Spacing Sections 3'..Q'" I 3'-6" 4'-0" 4'-6" I 5'-0" I 5'-6" I 6'-0" I 6'-6" I 7'-0" 7'--6" Allowable Height 'H' I bending 'b' or deflection 'd' 2" x 2" x 0.044" Hollow 8'-1" b 7'-6" b 6'-11" b 6'-7" b 6'-3" b 5'-11" b 5'-8" b 5'-6" b 5'-3" b 5'-1 " b 2" x 2" x 0.055" Hollow 8'-10" b 8'.2" b 7'-7" b 7'-2" b 6'-10" b 6'-6" b 6'-3" b 5'-11 " b 5'-9" b 5'-7" b 3" x 2" x 0.045" Hollow 9'-8" b 8'-11" b 8'-4" b 7'-11" b 7'-6" b 7'.2" b 6'-10" b 6'-7" b 6'-4" b 6'-1" b 3" x 2" x 0.070" Hollow 11 '-6" b 10'-8" b 9'-11 " b 9'.5" b 8'-11" b 8'-6" b 8'-2" b 7'.10" b 7'-6" b 7'.3" b 2" x 3" x 0.04S" Hollow 11'-11" b 11 '-1" b 10'-4" b 9'-9" b 9'-3" b 8'-10" b 8'-5" b 8'-2" b 7'.10" b 7'-7" b 2" x 4" x O.OSO" Hollow 13'-11" b 12'-11"b 12'.1" 'b 11 '-4" b 10'-9" b 10'-3" b 9'.10" b 9'-5" b 9'-1" b 8'-10" b 2" x S" x 0.050" S.M.B. 20'-2" b 18'-8" b 17'-6" b 16'.6" b 15'-8" b 14'-11" b 14'-3" b 13'-9" b 13'-3" b 12'-9" b 2" x 6" x 0.050" S.M.B. 22'-4" b 20'-8" b 19'-4" b 18'-3" b 17'.3" b 16'-6" b 15'-9" b 15'-2" b 14'-7" b 14'.1" b 2" x 2" x 0.044" Snap 9'-7" b 8'-11" b 8'-4" b 7'-10" b 7'-5" b 7'-1" b 6'-9" b 6'-6" b 6'.3" b 6'-1 " b 2" x 3" x 0.04S" Snap 12'-4 " b 11 '-5" b 10'-8" b 10'.1" b 9'-6" b 9'-1 " b 8'-8" b 8'-4" b 8'-1" b 7'-9" b 2" x 4" x 0.045" Snap 15'-1" b 13'-11" b 13'-0" b 12'-4 " b 11 '-8" b 11 '.1" b 10'-8" b 10'-3" b 9'-10" b 9'-6" b Notes: 1. Above spans do not include length of knee brace. Add horizontal distance from upright to center of brace to beam connection to the above spans for total beam spans, 2. Spans may be interpolated. Lawrence E. Bennett, P.E. CIVIL ENGINEER - DEVELOPMENT CONSUL TANT P.O. BOX 214::'68, SOUTH DAYTONA, FL 32121 TELEPHONE (386) 767-4774 FAX (386) 767-6556 @ PAGE COPYRIGHT 2003 NOT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT THE WRITTEN PERMISSION OF LAWRENCE E. BENNETT, P.E. 3-39