Sump Design Chas 5.10.09.doc

7/24/2019 Sump Design Chas 5.10.09.doc

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CHAS MUNICIPALITY

WATER SUPPLY IMPROVEMENTS SCHEME

Design of 1200 KL Caa!i"# C$ea% Wa"e% S&' a" (i$"%a"ion P$an") C*as

Capacity of the Sump = 1200 KL

Inner Dia of Sump = 21.00m

Effective depth of water = 3.0m

S!C of "oi# at propo"ed "ump = 200 K$% S&m

'L = ( 1)0.* +

+,L = ( 1)1.10 +

L,L = ( 1-.)0 +

ree !oard = 0.30 m

Dead Stora/e = 0.1 m

op #eve# of a"e "#a = ( 1-.* +

Side wa## top #eve# aove 'L = (1)1.*0 m

4""umed thic5ne"" of "ide wa## = 0.36 m

4""umed thic5ne"" of ottom a"e "#a = 0.*0 m

Den"ity of 7CC = 2.00 K$% Cum

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ota# hei/ht of "ide wa##

83.0(0.1(0.309 = 3.:%. m

S"%&!"&%a$ Design

'rade of concrete for a## "tructura# memer" = +;20 De"i/n mi = 0.6: R = 1.*3

!a#anced moment of the "ection = R d2% 10) = ).22 K$m

+e = 16.12 !a#anced !+ = ).22

7e&uired 4"t = +2A10)% 10A0.6-Ad = 3- mm2

+in 4"t = 0.22 % 100AAd = 23: mm2

op reinforcementB ?rovide 2 $o" of 12mm or throu/h and 1 $o. of 1)mm or

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= 0.6)0 K$+ Ne = N ( 1.)A% = 3*.* K$

Shear "tre"" tve = NeA1000 % Ad = 0.32 $%mm2

tc ma< = 2.2 $%mm2

4"t provided at face of "upport" = *2- mm2

?rovided pt = 4"t A 100% Ad = 0.3: Corre"pondin/ tc = 0.2-* $%mm2

"in/ 6mm or 2 #e//ed vertica# "tirrup"

4"v = 100.0 mm2 and t"v = 1- $%mm2

he a##owa#e "pacin/ mu"t e minimum of the fo##owin/.

1. Sv = 4"vAt"v%Atve;tc= 12-* mm c%c

4"v = ASv%1Ad11At"v(NASv%2.Ad11At"v

1 = 20*mm d1 = 32* mm

2. Sv = 302 mm c%c

T1 = ;2A20;6 = 22mm U1 = d;2A20;6 = 3-2 mm

3. Sv = Lea"t of T1 or U1 = 22 mm c%c

*. Sv = T1(U1%* = 1) mm c%c

fy = *1 $%mm2

+in 4"v condition Sv = 4"vAfy% 0.*A = 3*- mm c%c

+a< Sv = 1) mm c%c

Sv = 1) mm c%c

herefore provide 6mm or 2 #e//ed vertica# "tirrup" 1*0 mm c%c

S4E

Design of 'i, san se!"ion

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+id "pan !+ = 6.*6 K$+

= 10 $%mm2 c = 10 $%mm2 m = : 5 = 0.3- > = 0.6- R = 1.)*

!a#ance !+ = Rd2= )*.*-3) K$+

7e&uired 4"t = +A10)% 10A0.6-Ad = 1-: mm2

+inimum 4"t = 0.22 of "ection = 2--.2 mm2

-o""o' Reinfo%!e'en"B ?rovide 3 $o" of 12mm or at ottom throu/h

4"t provided at mid "pan at ottom = 33: mm2 S4E

Design of !o$&'ns insi,e "*e Rese%.oi% o%"ionCircu#ar

$o. of co#umn" = 1) $o"J dia = *00 mm

Loa,ing

Load from top rin/ eam = :-1 K$

Se#f wei/ht of a## co#umn" = 6) K$

ota# #oad on 12 co#umn" = 10- K$

Load on each co#umn = 66.0: K$

C#ear #en/th of co#umn L = 3.10 m +in 4" = ) mm2

Lon/itudina# reinf. of ) $o" of 12 or with 6mm or #atera# tie" at 10mm c%c

FK

PeQ min = L % 00 ( D%30 "u>ect to a minimum of 20mm

7eduction factor 7f = 1.2 M L % *6A = 1.03*

Load carryin/ capacity of co#umn

= 7f


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Fut"ide pro>ection of a"e "#a = *0 mm

ota# dia of a"e "#a = 22.6) mm

Loa,ings

Load from co#umn" = 21:0.00 K$

Load from roof annu#ar "#a on "ide wa## = 1**3.20 K$

pi%*A21.00O2;1*.0O2A-.

DL of cy#indrica# "ide wa## 3.1*2A21.0(0.36A0.36A*.32A2 = 2--.00 K$

,ei/ht of water 0.-6)A21.0O2A3.(0.3A10 = 131)1.60 K$

Se#f wei/ht of ottom #eve# a"e "#a 0.-6)A22.6)O2A0.3A2 = 3:* .00 K$

ota# #oad tan5 fu## = 2


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Load per metre run from "ide wa## 3:*0 % ?IA21.36 = 6.)) K$

Se#f wei/ht of ottom a"e "#a annu#ar portion 1.*6A0.3A2 = 12 .: K$

ota# per 1 7+ = 33 .** K$

?re""ure on "oi# 33.**% 1.13 = 2:.: K$%m2 2:6.) K$%m2

S4E

$et upward reaction 2*.:)% 1.13 = 22.06: K$%m2

S"%&!"&%a$ ,esign of ann&$a% %af" fo&n,a"ion

pward pre""ure ma


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+a< !+ = 2.23- K$;m%m

ota# thic5ne"" annu#ar raft "#a = 300 mm

C#ear cover = )0 mm

4""umed +a


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rom C#. 31).3.1 of ISB*);2000

+a


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Ci%!&'fe%en"ia$ %einfo%!e'en" ea!* a" "o an, 8o""o'

?rovide 10mm or 200mm c%c a" di"triution reinf.in the form of circumferentia#"

?rovided 4"d = 3:2 mm2%m 3)0 mm2%m

S4E

-ase s$a8 o%"ion o"*e% "*an Ann&$a% %af" s$a8

4""umed thic5ne"" of a"e "#a for the remainin/ portion = 300 mm

+in re&uired 4"t tota# on oth face" in each direction= 63 mm2%m a" per ISB33-0

+in re&uired 4"t on each face in each direction = 2:1. mm2%m

Ci%!&'fe%en"ia$ an, %a,ia$ %einfo%!e'en" ea!* a" "o an, 8o""o'

?rovide 10mm or radia# reinforcement 200 mm c%c a" di"triution reinf. in the form of

circumferentia#" and radia#"

?rovide 4"d = 3:2 mm2%m 2:1. mm2%m

(o&n,a"ion %ing 8ea' !onne!"ing !o$&'ns

?rovide rin/ eam "ame a" that of roof rin/ eam for tran"fer of #oad to foundation" i.e.J

a"e "#a

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Sump Design Chas 5.10.09.doc