Wind Load Calculations as per IS 875-part 3

LOAD CALCULA CALCULATIONS TIONS : : : :

Job No. Project C!"e#t De$cr"(t"o#

,-"!&"#% T'(e



Length (o/o) Width (o/o) W idth module Bay spacing Clea ea!e height "a#$ ea!e height Roo% slope ( θ)

= = = = = = =

3.01 m 3.01 m

W t$ o% sheet & puline 'ead Load ('L)

= =

9.11 %/;< 9.19 9.1 9 N N/; /;

Collateal Load on Ra%te

= =

9.11 %/;< 1.11 1.1 1 N N/; /;

Li!e load/unit aea oo% Li!e Load (LL)

= =

2.11 %/;< .10 .1 0 N N/; /;

Basic *ind speed (+,) 'esign *ind speed (+-) *hee

= 42 m/s = =b?+9?+?+3

0.2 4.1 4.1 3.54 .54

Rev. No. HQ 33 CORPS UG OPS ROOM/SANDMODEL ROOM LOADS ON THE MAIN SAND MODEL ROO) TRUSS

Dte De$"%#e& b' C*ec+e& b'

: : : :

R0 28/12/2015  

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m m m 6

DEAD LOAD 7DL8

COLLATERAL LOAD the Collateal Load

= =

5.11 %/;< 1.4 1. 4 N N/; /;

LI=E LOAD 7LL8

>IND LOAD 7>L8

.1 = po,a,ility po,a,ility %acto %acto (is. (is. coe%%icien coe%%icient) t) = 9 .2 = teain teain height height and stuctue stuctue si-e si-e %acto %acto = 1.@5 . = topo topog gap aphy hy %ac %acto to    = 9 40.1 40 .10 0 ;/$ +- = 'esign *ind pessue (p-)

= p- =

eain Categoy

Class

3

B

1.0?=< 9.23 9. 23 N/; N/;<< PRESURE COE))ICIENTS:B

nclose nclose conditio condition n o% the the ,uilding ,uilding = O(e# ntenal ntenal pessue pessue coe%%$( coe%%$(Cpi) Cpi) =

1.21

h/* = 1.95 = */9/ 9.11 l/* = = 9!/3/ #tenal pessue coe%%$(Cpe) : Wind 9ngle (:) 0 degee 60 degee

Tb!e 4 Coe%%$ 3o Wall Le%t Right 0$40 0$25 0$50 0$50

Tb!e  Coe%%$ 3o 3o Ro Roo%   Le%t Right 0$650 0$70 0$80 0$80

>IND LOAD DIAGRAMS:B Wind Across the Ridge (With -Ve Cpi) 1.4 .1 N/; 1.31

N/; 9.13 9.41

Wind Across the Ridge (With +Ve Cpi) 9.04 94.145N/; 9.91

.5 N/;

N/; 3.52 1.4

N/; 1.11 1.11

>"#& Pr!!e! to R"&%e7>"t* F=e C("8 9.1 9.5@N/; 9.1

N/; 5.90 1.@

9.5@ N/;

N/; 91.39 9.1

N/; 91.39 9.1

>"#& Pr!!e! to R"&%e7>"t* =e C("8 1.91 1.50 N/; 1.91

N/; 9.2 1.1

N/; @.4

1.50 N/;

N/; 1.11 1.1 Note: 1) +alues *ithin the cicles ae the 'L

2) +e !alue means load applied a*ay %om stuctue$

DESIGN ASSUMPTIONS AND T*e ;"# r;e$ re !o& ber"#% tr-$$e$ o# RCC co!-;#$ . Roo "$ oct%o#! * S-((ort co#&"t"o#$ re )IED or RCC Co!-;#$ o t*e b-"!&"#% #& Tr-$$ $-(( T*e $tb"!"t' o t*e roo "$ (rov"&e& t*ro-%* t*e &"%o#! brc T*e roo (-r!"#$ re be;$ $-((orte& o# r"%"& r;e rt

LOAD COM,INATIO De& Lo& F Se"$; De& Lo& F L"ve Lo& F Per;"$$"b!e Stre$$e$ *ve bee# "#cre$e& b' 33.33  De& Lo& F Cr#e Lo& De& Lo& F L"ve Lo& F De& Lo& F >"#& Lo& De& Lo& F >"#& Lo& Per(e# De& Lo& F Cr# De& Lo& F L"ve Lo& F >"#& De& Lo& F L"ve Lo& F >"#& Lo&

LOAD COM,INATIONS "((e& roo "t* *"( rter$ (rov"&"#% t*e re-"re& $!o(e$ #& $tb"!"t'. ort$ o# to( o RCC Co!-;#$ re o#e P"##e& #& o#e ro!!er $-((ort$. "#% #& $tr-t (-r!"#$ "# !"#e "t* e#& !! co!-;#$. er$ #& $(# t*e b' $(c"#% o t*e b-"!&"#%.

S 7CRITICAL8 "c Lo& Se"$;"c Lo& r &e$"%# o e!e;e#t$ *ere "#& "$ cr"t"c!. F >"#& Lo& o!!ter! Lo& A!o#% )r;e &"c-!r to t*e )r;e e Lo& Lo& A!o#% )r;e er(e#&"c-!r to t*e )r;e

'ea ;undu$ o* 'o  apply *ind loads on the hipped octagonal oo% system$ he columns ae RCC$ 2$ s the ,asic scheme o% modeling o.$  m dou,t%ul a,out the cental !etical mem,e  the Co*n$ D /impo!ement on the one poposed hee$ $ 9e the ?ac. a%tes o. o should  go %o monosloped tusses as @ac. a%tes in stad o% simple mem  am tying to ta.e the coe%%s as in monosloped oo% *ith !aia,le angle o% *ind attac. %om 0 deg to 18 ( F 8002004G a,le ) 7$ s it o. to analyse the *hole stuctue in one go o sepeate the steel pat and the RCC pat$ A 5$  chose mem,es o% the oo% as dou,le channel %ace to %ace ma.ing it a ,o#$ $ comment *hethe pipes ha!e any ma.ed ad!antage (  *as *oied %o the %a,ication comple#ities  a*ait you esponse$ Lu! +amsi