7851B C17 Storm Water Calculation

7/26/2019 7851B C17 Storm Water Calculation

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Content:

1.Building Storm Water Calculation

2. Site Storm Water Calculation


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C. SIZING OF ROOF DRAINS AND RAIN WATER PIPES:

TRIBUTARY ROOF AREA SERVES AT MAIN ROOF DECK

USING :3"PER HOUR MAIMUM RAIN FA!! INTENSITY RECORDED IN ATAR

F#o$ t%e t&'(e) &'o*e

M&+,$-$ o/#&te 0o# " ,e ,) 12 GPMTo Con*e#t ,n4% e# %o-# to 5&((on e# )6. 0eet 7 8.8312 GPM9FT

AREA ;1 7 31.> 7 3 7 .32

AREA ; 7 2=.22 7 31?=.?> 7 .32

AREA ;> 7 318.== 7 332.28 7 18.11.1

12

3.3>

SAY 7 NOS.

= No) "

NOTE : M,n,$-$ Re6-,#e$ent) ,0 *e#t,4&( ,e) 9(e&)e#) $-)t 'e 2 no).

TRIBUTARY ROOF AREA SERVES AT ENTRANCE CANOPY

AREA ;< 7


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GPM 12 GPM

GPM 12 GPM

GPM 12 GPM

GPM 12 GPM

GPM 12 GPM

GPM 12 GPM

GPM

GPM

NO.

#o*,e on (&n

GPM < 12 GPM

#o*,e on (&n

GPM < 12 GPM

#o*,e on (&n

0t


5/56

SDCP;B>.2

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

E+t#& So#o-n,n5 e& 18 7

Tot&( t#,'-t A#e& Se#*e 7

2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

SDCP;B.2

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

A< Roo0

A< G#o-n

A In4o$$,n5 Stt M&n%o(e

AT

De),5n F(oo 1 ,n4%e) ..e

R&,n0&(( Inten),t 2 H#) D-#&t,on I2

D-#&t,on o0 St#o$See T&'(e 1.>.

Inten),,t D-#&t,on F#e6-en4 See T&'(e 1.>.

R-no Coe4,ent See T&'(e 1.=.1

A4t-&( 7CIIDFAT

A4t-&( F(o/ R&te A4t-&(@!PS

M&+,$-$ F(o/ R&te M&+,$-$

A1 Roo0

A1 G#o-n

A A#e& Se#*e JB>.2

AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


6/56


M&+,$-$ F(o/ R&te M&+,$-$


7/56

SDCP;B3.2

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

7E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

SDCP;B2.2

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

A3 Roo0

A3 G#o-n

A A#e& Se#*eJB.2

AT

De),5n F(oo 1 ,n4%e) ..e



Inten),,t D-#&t,on F#e6-en4 See T&'(e 1.>.R-no Coe4,ent See T&'(e 1.=.1

A4t-&( 7CIIDFAT


M&+,$-$ F(o/ R&te M&+,$-$

A> Roo0

A> G#o-n

A A#e& Se#*e JB3.2

AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


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M&+,$-$ F(o/ R&te M&+,$-$


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SDCP;B1.2

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

SDCP;B.11 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

A To E+te#n&( S,te Sto#$ D#&,n

A A#e& Se#*e JB1.2

AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


M&+,$-$ F(o/ R&te M&+,$-$

A2 Roo0

A2 G#o-n


AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


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M&+,$-$ F(o/ R&te M&+,$-$


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SDCP;B3.1

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

SDCP;B2.1

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

A Roo0

A G#o-n

A A#e& Se#*e JB .1

AT

De),5n F(oo 1 ,n4%e) ..e



Inten),,t D-#&t,on F#e6-en4 See T&'(e 1.>.R-no Coe4,ent See T&'(e 1.=.1

A4t-&( 7CIIDFAT


M&+,$-$ F(o/ R&te M&+,$-$

A= Roo0

A= G#o-n

A A#e& Se#*e JB3.1

AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


12/56


M&+,$-$ F(o/ R&te M&+,$-$


13/56

SDCP;B=.1

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

SDCP;B>.1

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

A A#e& )e#*e JB=.1


AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


M&+,$-$ F(o/ R&te M&+,$-$

A A#e& )e#*e JB>.1

A A#e& Se#*e J B=.1

AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT


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M&+,$-$ F(o/ R&te M&+,$-$


15/56

SDCP;B1.1

1 CATCHMENT AREA

T#,'-t A#e& Se#*e 7

7

E+t#& So#o-n,n5 e& 18 7


2 STRORE DETAILS

N 7

7

T 7

IDF 7

C 7

3 Run of Details

Vo(-$e R-no 0o# 2 H#) 7

A A#e& )e#*e JB=.1

A A#e& Se#*e JB2.1

AT

De),5n F(oo 1 ,n4%e) ..e





A4t-&( 7CIIDFAT

A4t-&( F(o/ R&te A4t-&(@!PS To e+te#n&( net/o#

M&+,$-$ F(o/ R&te M&+,$-$


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8.822Y#)

=> $$9&

2 H#)

1


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2.>< !PS

1?!PS


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2=.22

12=.=3.


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=.?> !PS

=.?> !PS

1?!PS


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8

1>?3.81

8.88

1>?3.81

8.311< ACRS

2>Y#)

=> $$9&

2 H#)

1

18?.>GPM

=.?> !PS

=.?> !PS

1?!PS

3>1.>

1>8.>3

8

>8.1?

>>2.1


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2.3 !PS

1?!PS


22/56

2=.22

12=.=>2.1


23/56

=.=< !PS

=.=< !PS

1?!PS


24/56

23.Y#)

=> $$9&

2 H#)

1


25/56

8.23 !PS

1?!PS


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>2.1

1>1.21

1>.3

12.=?>8.3318 ACRS

2>Y#)

=> $$9&

2 H#)

1


27/56

Calculation Using COLEBROOK !HITE "o#$ulae

T%e &4t-&( *&(-e) o0 *e(o4,t@ #o#t,on&( et%@ et% o0 o/@ et4. o0 t%e t%e ,e 4&

0o-n ' -),n5 CO!EBROOK; HITE Fo#$-(&e

%e#e:

d = pipe diameter (m)

f = Darcy friction co-efficient

=

k = hydraulic roughness (m)

n = Manning n

= peak flow (L/s)

f = flow - pipe flowing full (L/s)

!p = hydraulic mean radius for partly full pipe (m)

!f = hydraulic mean radius for full pipe (m)

" = hydraulic gradient

# = mean $elocity (m/sec)

#p = mean $elocity in part full pipe (m/s)

#f = mean $elocity - pipe flowing full (m/s)

y = Depth %f &low (y) a'o$e pipe in$ert (m)

=

=

*+ = angle (radians) su'tended at pipe centre 'y water surface in in$ert

=

F#o$ t%e G#&% 'e(o/ 4o$-te -),n5 CO!EBROOK; HITE Fo#$-(&e

%e#e

P,e %#-(,4 Ro-5%ne)) K 7 8.8=

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

g acceleration due to gra$ity = ,. m/s*

p

fluid density = 000 (kg/m1)

kinematic $iscosity (m*/sec)

a$erage 'oundary shear stress (2a) 3


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e n:

1.82 $9)

1? !9)

P,e F-(( Ve(o4,t V0

P,e F-(( o/ 0


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T%e %#-(,4 e(e$ent) 4%t 'e(o/ #e(&te) t%e o/@ et% &n %#-(,4 $e&n

#&,o) #&t,o) to e&4% ot%e#

F#o$ t%e #&t,o 90 0o# e&4% ,e /e 4&n 5et t%e #&t,o V9 V0 &n@ R9R0 &n 0#o$

t%,) #&t,o) /e n t%e 0o((o/,n5 #e)-(t)


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'e


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34/56


35/56

SDCP;B>.2

Fo#$-(&e: CO!EBROOK; HITE

S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: 8. !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.38= $9)

Det% O0 F(o/ 12.32 $$

P#oo#t,on&( Det% ?.88

1.11 E;8= $29)


36/56

SDCP;B.2


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: 2.>< !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.


37/56

SDCP;B3.2


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: .>? !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.?3= $9)

Det% O0 F(o/ .> $$

P#oo#t,on&( Det% 33.88

1.11 E;8= $29)


38/56

SDCP;B2.2


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: =.?> !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.1? $9)

Det% O0 F(o/ >?.> $$


1.11 E;8= $29)


39/56

SDCP;B1.2


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: =.?> !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.1? $9)

Det% O0 F(o/ >?.> $$


1.11 E;8= $29)


40/56

SDCP;B.1


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: 2.3 !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.


41/56

SDCP;B3.1


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: . !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.?8= $9)

Det% O0 F(o/ =.> $$


1.11 E;8= $29)


42/56

SDCP;B2.1


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: =.=< !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.?? $9)

Det% O0 F(o/ =3. $$

P#oo#t,on&( Det% 2.>8

1.11 E;8= $29)


43/56

SDCP;B>.1


S%&e: C,#4-(

!,6-, &te# &t 1> e5 C

V,)4o),t:

Un,t): SI

P,e Ro-5%ne)): 8.8= $$

Pe& F(o/: 8.23 !9)

D,&$ete#: 1>8 $$

P,e S(oe: 1:1>8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.23> $9)

Det% O0 F(o/ $$

P#oo#t,on&( Det% >.88

1.11 E;8= $29)


44/56

SDCP;B1.1


S%&e:

C,#4-(

!,6-,

&te# &t 1> e5 C

V,)4o),t:

Un,t):

SI

P,e Ro-5%ne)): $$

8.8=

Pe& F(o/: 8

P,e F-(( F(o/ 1? !9)

P,e F-(( Ve(o4,t 1.82 $9)

A4t-&( Ve(o4,t 8.> $9)

Det% O0 F(o/ = $$

P#oo#t,on&( Det% >.88

1.11 E;8= $29)


45/56


46/56


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Su$$a#% S&eet

D#ainage line Slo'e (ea) "lo* +ELOCIT, -$.s/

F#o$ TO $$ !9S A4t-&( F-(( P,e

1 SDCP;B>.2 SDCP;B.2 1>8 1:1>8 8. 8.38= 1.82

2 SDCP;B.2 SDCP;B3.2 1>8 1:1>8 2.>< 8.8 1:1>8 .>? 8.?3= 1.82

SDCP;B2.2 SDCP;B1.2 1>8 1:1>8 =.?> 8.1? 1.82

> SDCP;B1.2 S,te net/o# 1>8 1:1>8 =.?> 8.1? 1.82

= SDCP;B.1 SDCP;B3.1 1>8 1:1>8 2.3 8.8 1:1>8 . 8.?8> 1.82

? SDCP;B2.1 SDCP;B1.1 1>8 1:1>8 =.=< 8.?< 1.82

SDCP;B>.1 SDCP;B1.1 1>8 1:1>8 8.23 8.23> 1.82

18 SDCP;B1.1 S,te net/o# 1>8 1:1>8


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$$

? 12.32

2= 8.8

33.88 .>

3.88 >?.>

3.88 >?.>

2.88 3=

31.88 =.>

2.>8 =3.

>.88

>.88 =

(#o'o#tional

De't&

De't& o1

2o*

Documents

7851B C17 Storm Water Calculation