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r r I I I I I I j ( i SECTION 1 SCREENED ENCLOSURES Table 1,1 Allowable Spans for Primary Screen Roor Frame Members Aluminum Alloy 6063 T.6 For Areas with Wind Loads up to 150 M.P.H. and u,rirudes Below 300.30"-00" North (J:acxsonviHe, FL) Hollow Sections 12'" x Z- x O.044~ 2~ X 2" x 0.055- 2- X 3'" x 0.045- Z- x 4" x 0.050" 9'-1 0" 10'.S" 13'-4" 14'-0" b 8'-7-- b 9'-4- b 11'-7" b, 12'-8" Tributary Load W;dth W' - Beam Spacing 1 Self Mating Sections 3'-0" 4'-0" 5'-0" 6"-0" j 7'-0" I 8'..0- I 9'.0" Allowable Span 'L' ! bending 'b' or deflection .d' 2~ x 4- x 0,044 x 0,100" 19'-11- b 17'-4" b' ,5.-6" b I 14'-?- b lS'-l- b I 1'7',,3- bI1,'-6- 0 2" x 5")( 0.050~ x 0,100" 24'.9- b 21'-5" b 19'-2" bT 17'-6" b ~6'-2" b I 10'.2" b i M'-3" b 2" x 6" x 0.050- x 0.120- Z8'.7" b' 24'.9" .0 22'-2" 01 20'-3" 0 '3'.9" b(j17.-6" bT ,6'-6" 0 2- x 7")( 0.055" x 0.lZ0" 32'-3" b 27'-11" b 24'-11" b 22'.9" 0 2,'-1- o T 19'-9- bl 10'-r b r X r X O,05S" wi ipsert 4Z -10" b 37'-1" b 33'-2" b 30'-4" b '28'-1" ';b j 26',3" b I ?4'-9" h 2" X 8" x O.072~' )( 0224- 41',,7" b 36'.," b I 32'-3- b 29'-5- 'II' 27'-3" bi 25'-6" b I 24'.0" b 12" X 9" :x 0.071" )( 0.224" 45'-1" b 39'-1" b I 34'-11" b 31'-11" bl 29'-6" h I 27'-8" b126'-T' h 12" X 9" x O.OS:Z- x-O.31(j. 49',,6- b 42'-11~ b! 38'-4- b 35'.0" b I 32'-5" b I 30'-4" 01 28'.7" b 12" x 10~ X 0.092" X 0.369.' 59'-6" b 51'-7" bT 46'-," b, .42....:.. D 138'-11" hI 36'-5- b I 34'-4" b. r Tributary Load W;d!h 'IN' =: Beam Spacing Snap sections ~.-O" T 4~-O." I 5'.0" T 6'-0" 7'-0" ! S'-O" I 9'-0" AlIow3ble Span 'L' J b..nding 'b' or deflection 'd. 2" X 2" X D.oM" 11"-9" bl 10'-2" b! 9'-1" b ! ..... .n" D I ]'-3" b! 7'-2" bJ 6'-9" b o~ 2" X 3" X 0.04:>' '5'-1" b ~ 13'-1- bl "'-8" bl 10'-a" hI g'-10" b I. 9' ~" 01 8' ~" b -.:> -Cj 2" X 4" X 0.045- 18'-5- b 115'-1'- bj 14'-3" b r 13'-0" b 12'-1" bl ' 1'-3" 01 10'-0" b r x 6" X 0.062'" 31'-3" b I 27'-1- b I 24'.2" b: 22'-1" 0 ?O'.S" b j 19'.?" hi 18'-0" b ?" X 7"" X 0.062" 34'..9" b! 30'-1- b I 26'-1'" b I 24'-7" b 22'.9" bl 21'-3" br 20'.1" b' I i I i I I I i i i ! ! I ;i Note: 1. Thicknesses shown are "nominal- industry standard tolerances, No waU thickness shall be less than 0,040", 2. The structures desjgned using this section shall be limited to a maximum combined span and upright height of 55' and a maximum upright height or 20'. Structures larger Lf)an these limits shaIl have site specific engineering, 3, Spans are based on a minimum of ,0#/ SQ. Ft. for up to a 150 M'p.H. wind !oad. 4. Span is measured from center of beam and upright connection to fascia or \,-JaIl connectio", S. Above spans do not include length of Knee brace, Add horizontal distance from upright to center of brace to beam conneciion <0 the above spans for tot::ll beam spans. 6. purl;n spacing shall not' exceed 6'- 8". For beam spans greater than <:0'-0" the beam at the center purlin and one purlin for each 14'.0- on each side of tl-se center pur!;n shall,nclude latera! or:=c;ng as shown in detail (48'-0") span with purl ins at 6'- 8~ o.c, center pUrlin and (2) purlins each side of cemer purlin r>eed latera! bracing, 7. Spans may be interpoiated, Example: Max. 'L' for 2" x4" X 0.050' hollow section with 'W' = 5'.0" =: 11'-4~ r i I I Lawrence E. Bennett, P.E. FL # 16644 CIVIl. ENGINEER - DEVELOPMENT CONSUL TANT P.O. sox 214m, SOUTH DAYTONA. FL 32121 TSLEPHON2 (386) 7fiT..t.774 FAX: (386) 767-6556 .:.G2 @ COPYRIGHJ" 20~ NOT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT THE WPJTTEN P:;RMISS10N OF LAWRENCE E. 3ENNETT. PE 1-56