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i I I I. , J I I 1 I i ! i I f I SCREENED ENCLOSURES SECTION 1 Table 1.i Allowable Spans fer Primary Screen Roof Frame Members Aluminum Alloy 6063 T.G 1"or Areas with Wind Loads ~p to 150 M,P.H. and btitudes Below 300.30'.00- NOM (J:2cksonvi!ie, FL) Tributary Load Width 'W' - Beam Spacing Hollow Sections 3'-0" 4'-0- 7'''{)- S'-O" 9'.0" I I Allowable Spa!'! 'L'I bending 'b' or daflection 'd' i 2- X 2- X O,O~- 9'.10" b S'.?" b 7'-8" o! 6~-1i- b 1 0'-6" bf 0'_140 b} 5'-0" bi 12- X 2'. X 0.OS5- 10' .S" b g'4- b 8'-4" b} T.r bl T -- bl er-r 01 6' ..,- oj - , 'J f 2- X 3- X 0,045- 13'4" b 11'.7" b 10'-4" b! 9'.5' bl 0'.9" bI- S'.? bl T ~- b 1 -0 2" X 4- X 0.050" 14"0" b 17.8" b 1"-4," bf 10'-4" bl 9'.7- 01 8'-1'" bl 8'S' 01 Tributary Load Width W' - Be= Sp3cing Self Mating Sectio!'!s 3'-0" ! 4'-0" 5'-0.' I 6'.0- j 7"-0" I 8'-0- I g'.O. Allowable Span 'L'! bending 'b' or deflection 'd' 2" x4- x O,()44x 0.100" 1S.-11" b 17'-4" b' 15'-6- b I 14'.?' 0 13'.,- b I 12'-3" bI11'-6- b 2" x 5- X 0.050- X 0,100- 24'.9" b 21'.5" b 19'.2" b' 1 T-6- b, 16'.2" b I 15'-2" b 1 14'-3" b . 2- x 6'. x 0,050- x 0.120- 28',7" b 24'-9" .0 22"-2" oj 20',,3" D 1S'-9" bd 17'-6- bl 16'.6- b, Z- x 7" x 0.055- X O,lZ0'. 32'.3" b 27'-11" b 24'-11" b I 22'.9" 0 21'-1- oj 19".9- b/ '1 cr-7- 0 r x T' x 0.055" wi ;pser1 42'-10. b 37'-'" b 33'-2" bl 30'-4" b <")8'-'" .. 'Y:J j ?o'.3- b I ?4',,9" b 2- )(. 8" x o.on~' )(. 0.224- 41'-7- b 36',,1" b I 32'.3" 0-1 27'-3- bj 25'-6- lJ I ?4'.0" 0 : 2" X 9" :x 0.072" X 0..224" 45'.1" b 39'-,- b I 34'-11" b 13'1"~"''f~ ~l 29'-6" bl 27'''<''' b I 20'"," lJ 12" x 9" x 0.082- )(. -0.31 (J. 49'-6' b 42'-1'~ b1 38'-4- bl 35'-0" b 32'.5- o I 30'-4- bl 28'.7" b i f r x 10" x 0.092" X 0.369" 59'-6" bl 51'.7- b j 46'.,,, b! ~2'-1" 0138'-11- b 1 36'S !:>j 34'4" bl Snap Sections 9--0" - I Allowable Span 'L' ! 0""di"9 '1:, or deflection 'd' , 1 2" x 2- x O.oM" , l'.S- bl 10'-"''' bl g'-," bl ...... A'. oi 7"0" b/ 7'-2" ol 6'"S" b o~ 2- x 3" X 0,045"" 15'-,- b [ 13'-1" b I 11'-8" bj 10'-a" bl g'-,o" b :- 9'-3" o! 8'.S" b 2" X 4- X 0,045- 18'-5- bl 15'-1'- b j 14'-3" bl 13'-0" 1:> 12'-1" bj ., 10-3'" bf 10' 0" b 2'" x 6" x 0.062'" I 31'.3" bl 27'-1- b I 24'-2- b I 22'-1" b ?O'-S" b! 19'-2- bl 11)'.0" b ?" x 7- x 0.062" r 34'-9- bl 30'-," b I ?6'-1'" bl ?4'-7" b 2?'-9" bl 21'-3" br ?O' -1" b' J I I ! j j i 1 I ! I I I l , if Note; ,. Thicknesses shown are -nominal" industry st3ndard tolerances. No waU thickness shall be less man 0.040". 2. The structures designed using this section shall be limited to a maximum comoinea span and upright height of 55' and a maximum upright height or 20'. Structures Jarger Li'Jan these limits sha!i have site specific engineering. 3. Spans are based on a minimum of 10#1 SQ. Ft. for up to a 150 M.P.H. wind load. 4. Span is measured from center of beam and upright connection to fascia or wall connection. 5. 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 iotal beam spans. 6. Purl;n spacing shall not'exceed 6'- 8". For beam spans greater man ~O'.O. :.'1e beam at the cente' purl;n and one purlin for each 14'-0" on each side of tf-Je center purl;" shall ,nelude latercJ bracing as sho....m in detail (48'-0") span with pU!1ins at 6'. 8~ o.c. center purjin and (2) purlins each side of center puriin (!eed lateral br2cing, 7. Spans may be interpoiated, Example; lII'.aX. 'L' for 2" X 4" X 0.050" hollow section with 'W' = 5'-0- == 11'-4~ I I j Lawrence E Bennett, P.E. FL # 16644 CIVIL ENGINEER. DEVELOPMENT CONSULT ANi P.o. "ox 2:4360, SOUTH DAYl'ONA. Fl32121 TElEPHONE.: (386) 767~774 FAX: POOl 767-6556 I I ! ~-:GE I @ COPYRIGHT 10lX ! NOT TO 32 REPRODUCED IN WHOLE OR IN PART WITHOUT THE INPJTTCN P:;.'l!vHSS!ON OF V\WRENCE =. 3E)J!'!",TT. P::: 1-56