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<br />) ,
<br />QI MAXIMUM ROOF BEAM SPANS
<br /> IN DECIMAL FEET EXAMPLE:
<br /> SCREEN ROOF I SCREEN WALLS POOL ENCLOSURE
<br />=- WIND 110 MPH DEFLECTION L160
<br />=- <----[ COLUMN USED J->
<br /> 10 . WALL
<br />~ i ROOF (F) (G) (H) (I) (J) (K) (L) (M) (N)
<br /> BEAM SPACING 2x3 2x3 2x4 2x4 2x4 2x6 2x7 2x8 2x9
<br /> USED PB SMS PB SMS 5MB 5MB 5MB 5MB 8MB
<br />.....
<br />- 4'-0" 18.42 19,($ 19.25 19.25 19,25 19,25 19.25 19.25 19.25
<br />=- (H) '5'-0" 17.08 17,58 17.75 17.75 17,75 17.75 17,76 17.76 17,76
<br /> 2x4 6'-0" 16,08 16,58 16.75 16.58 16.75 16,76 16.75 16.75 16.76
<br />=- PB 7'.0" X 15,58 15.75 15,75 15.75 15.75 15,75 15.76 16.75
<br /> 8'-0" X 14.92 15.08 15.08 15,08 15.08 15.08 15,08 15.08
<br /> 9'-0" X 14.42 14.42 14,42 14.42 14,42 14.42 14,42 14.42
<br />...
<br /> 4'-0" 21,08 21,75 21,92 21.75 23.42 23.42 23.42 23,42 23,42
<br />-.... (J) 5 '-a" 20,08 20,08 20.25 20.08 21,58 21.58 21.58 21.58 21.58
<br />~ 2x4 6'-0" 18.42 18,75 18,92 18,92 20.25 20.25 20,25 20.25 20.25
<br />=:. 5MB 7'-a" X 17.92 17,92 17,92 19.08 19.08 19.08 19.08 19,08
<br /> 8'-0" X 17,08 17.08 17,08 18,25 18,25 18.25 18,25 18,25
<br />=>> 9'.0" X 16.42 16.42 16.42 17.42 17.42 17.42 17.42 17.42
<br /> ~
<br /> 4'.0" 28,08 28,58 28,75 28,58 29,92 31.92 31.92 31.92 31.92 I
<br />= (K) 5'.0" 26.08 26.42 26.58 26,58 27.58 29,25 29.25 29.25 29,25
<br /> 2X6 6'.0" 24.58 24.92 24,92 24.92 25.92 27,42 27.42 27.42 27.42 ~
<br />== 5MB 7'.0" X 23.!'i8 23.75 23.58 24,42 25,92 25,92 25.92 25.92
<br /> I
<br /> 8'-0" X 22.58 22.58 22.58 23,42 24.58 24.58 24,58 24.58 IJ/)"I
<br />.. 9'-0" X 21.58 21,75 21,75 22.42 23,58 23,58 23.58 23.58
<br /> .
<br />iii 4'.0" 31.58 32,08 32.08 32,08 33.08 34,92 35.92 35.92 35.92 .
<br /> (L) 5'-0" 29.42 29.58 29.75 29,75 30.58 32,25 33.08 33.08 33.08
<br />iii 2x7 6'-0" 27.58 27.92 27,92 27.92 28.75 30.08 30,92 30,92 30.92
<br /> 5MB 7'-0. X 26,42 26,58 26,58 27,25 28,42 29.25 29.25 29,25
<br /> 8'.0" X 25.25 25,42 25.42 26.08 27,08 27,75 27.75 27,75
<br />Z; 9'-a" X 24,25 24.25 24.25 24,92 26.08 26,58 26,58 26.58
<br />.. 4'.0" 38,25 38.58 38,58 38.58 39.42 40.92 41,75 44.25 44.25 I
<br /> (M) 5'-0. 35,42 35.75 35,75 35,75 36,58 37,75 38,58 40,75 40,75 I
<br />t; 2x8 6'-0. 33.42 33.58 33.75 33,58 34,25 35,42 36.08 37,92 37.92 ;
<br /> 5MB 7'-0. X 31.92 31.92 31.92 32,58 33.58 34,08 35.92 35,92
<br />r. 8'-0" X 30.58 30.58 30.58 31.08 32,08 32,58 34,08 34,08
<br /> 9'.0" X 29.25 29,42 29,42 29.92 30,75 31,25 32,75 32,75
<br />D 4'-0" 41.92 42,25 42,25 42,25 43,08 44.42 45,08 47.42 48.42 i
<br /> (N) 5'-0" 38.92 39.08 39.25 39.08 39.92 41.08 41. 75 43.58 44,58
<br />D 2x9 6'-0" 36,58 36,75 36,92 36.75 37.42 38.42 39.08 40.75 41.58
<br /> 5MB 7'-0" X 34.92 34.92 34,92 35,58 36.42 36.92 38.58 39,25
<br />D 8'-0" X 33.42 33.42 33,42 33,92 34.75 35,25 36,75 37,42
<br /> 9'-0" X 32.08 32.08 32,08 32.58 33.42 33,92 35,08 35.75
<br /> INTERPOLATION BETWEEN VALUES IS PERMISSIBLE ..,.-
<br />;
<br />J
<br />I
<br />['I ~ALUMINUM STRUCTURES MASTER PUN
<br />' I ~ ENG//EERING.INC. @ COPYRIGHT AL, IHC, 1994 53
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