Multistory Framed Structure 2005

8/10/2019 Multistory Framed Structure 2005

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A REPORT ON THE

ANALYSIS & DESIGN OF A

MULTISTOREYED FRAME STRUCTURESubmitted as a requirement for the award of the degree of

Bachelor of Technology

In

Ciil Engineering

Un!er "he g#i!ance ofDr$ %$$ Meh"a

S#'(i""e! By)

Swetabh SinghSamik Mukhopadhyay

AjitabhShah

DE%ATRMENT OF CI*IL ENGINEERING

MOTILAL NE+RU NATIONAL INSTITUTE OF TEC+NOLOGY

,DEEMEND UNI*ERSITY-

ALLA+ABAD . /00112

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INTRODUCTION

0$0 GENERAL

Man require di!!erent bui"ding !or hi #ariou a$ti#itie% houe& !"at !or hi

"i#ing& hopita" !or hi hea"th& $hoo" and uni#eritie !or edu$ation et$' The Nationa"

(ui"ding )ode o! *ndia +SP%,-1.,/0de!ine bui"ding a a any tru$ture !or whatoe#er

purpoe and o! whatoe#er materia" $ontru$ted thereo! whether ued a human

habitation or not and in$"ude !oundation& p"inth& wa""& !"oor& roo!& $himney&

p"umbing& and bui"ding er#i$e& !i2ed p"at!orm& #erandah& ba"$ony& $orni$e& or

proje$tion& part o! a bui"ding or anything a!!i2ed thereto or any wa"" en$"oing or

intended to en$"oe any "and or pa$e and ign 3 outdoor dip"ay tru$ture4' (aed on

o$$upan$y& the N() o! *ndia $"ai!ie bui"ding into nine group !rom 5roup A to 5roup

6' (aed upon the tru$ture& it $an be either "oad bearing or !ramed or a $ombination o!

two'

0$/ OB3ECTI*E

The proje$t $on$ern with the p"anning ana"yi 3 deign o! mu"titory bui"ding +5780

whi$h wi"" ha#e eminar room& adminitrati#e o!!i$e& departmenta" "ibrary 3 ome

"aboratorie o! the $omputer $ien$e 3 engineering department' The propoed ite i the

"and in !ront o! the M'M'S $omp"e2 with a p"ot area o! 19// m:' The propoed tru$ture i

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!ramed tru$ture 3 ha been deigned in a$$ordan$e with the pro#iion o! *'S )ode'

The ana"yi 3 deign o! the ;-< !rame ha been per!ormed by STA


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Fig$ 0$/$ %lan ie6 of "he '#il!ing ,CAD-

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Fig $ 0$4$ Fron" ie6 of "he '#il!ing

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Fig $0$2$ Si!e ie6 of "he '#il!ing

LITERATURE RE*IE7

AND MET+ODS OF ANALYSIS

/$0 GENERAL

A bui"ding may be either "oad bearing or !ramed tru$ture or a $ombination o!

both' 5enera""y the "oad bearing bui"ding are ued up to three torey' (eyond thi

!ramed tru$ture are pre!erred be$aue o! weight and trength et$' ?ow rie !ramed

tru$ture are made o! R')' e"ement@ where a high rie tru$ture ue tee" a !raming

ytem' Stee" !rame are ued !or ky-$raper but !or norma" high rie bui"ding&

rein!or$ed $on$rete !rame are ued' (oth thee type are ad#antageou o#er ordinary

bri$k or tone $ontru$tion a the "oad are redu$ed $oniderab"y'

Rein!or$ed $on$rete bui"ding $onit o! "ab& beam and $o"umn $ontinuou"y

p"a$ed to !orm a rigid tru$ture' Thi $ontinuou ytem "ead to greater redundan$y&

redu$ed moment and ditribute the "oad more e#en"y' The e!!e$t o! horionta" "oad

u$h a wind and earthquake are pread o#er the who"e tru$ture in$reaing it a!ety

$oniderab"y' The !"oor i upported on the beam whi$h may be dire$t"y upported on

$o"umn or on beam whi$h are then upported on $o"umn'

A bui"ding !rame i a three dimeniona" i'e' a pa$e tru$ture' *t $an be idea"ied

a a ytem o! inter$onne$ted two-dimeniona" #erti$a" !rame' The !rame $an be o"#ed

independent"y i'e' a a p"ane !rame or a pa$e !rame' The degree o! a$$ura$y to whi$h a

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tru$tura" ana"yi i $arried out depend upon the importan$e o! the tru$ture' A wide

range o! approa$he ha#e been ued !or bui"ding o! #ariou height and importan$e&

!rom imp"e appro2imate method to $omp"e2 te$hnique uing $omputer'

(ui"ding are deigned keeping the !o""owing in mind@

S"reng"h)The tru$ture hou"d be ab"e to a!e"y reit the tree indu$ed in a"" the

member due to impoed "oad whi$h in$"ude dead "oad o! tru$ture& "i#e "oad and

horionta" "oad i'e' wind "oad and earthquake "oad'

S"a'ili"y)The tru$ture and it part hou"d be a!e !rom o#erturning& "iding or bu$k"ing

under the a$tion o! the abo#e mentioned "oad'

Sericea'ili"y)The tru$ture hou"d per!orm ati!a$tori"y under er#i$e "oad $ondition

i'e' hou"d be ab"e to meet it purpoe !or whi$h it i bui"t during er#i$e "i!e' *! the

tru$ture !ai" to meet any +or a $ombination0 o! the obje$ti#e abo#e& then the tru$ture i

$onidered to ha#e !ai"ed' Apart !rom the three obje$ti#e abo#e two more !a$tor are

$onidered by deigner' They are E$onomy and aetheti$' (y e$onomy we mean that

the tru$ture hou"d be worth it pri$e by the er#i$e it pro#ide' One $an a"way deign

a mai#e tru$ture& whi$h ha more than adequate trength& tabi"ity& 3 er#i$eabi"ity&

but the enuring $ot o! the tru$ture may be e2$ei#e and the end produ$t !ar !rom

aetheti$'

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/$/ STRUCTURAL SYSTEMS

The "oad in a bui"ding tru$ture are tran!erred to a ground through a ytem o!

inter$onne$ted member' Bho"e mot !rame are deigned to $arry #erti$a" "oad@ $ertain

!rame in bui"ding are deigned to $arry horionta" "oad more e!!e$ti#e"y' A tru$tura"

ytem may be $"ai!ied a "oad bearing wa"" ytem& bui"ding with !"e2ura" wa"" ytem&

Moment reiting !rame ytem& !"e2ura" wa""& dua" !rame ytem& Spa$e !rame 3 Tube

Sytem'

A brie! de$ription about the abo#e ytem i preented be"ow'

/$/$0 Loa! 'earing 6all 5y5"e()

*n thi type o! tru$ture no $o"umn pro#ided' The wa"" pro#ide upport !or a""

gra#ity "oad a we"" a reitan$e to "atera" "oad' The wa"" and partition wa"" upp"y in-

p"ane "atera" ti!!ne and tabi"ity to reit wind and earthquake "oading' Su$h tru$tura"

ytem are retri$ted !or bui"ding up to ; torey in eimi$ one C and 8 tore in other

one'

/$/$/ B#il!ing5 6i"h fle8#ral ,Shear- 6all 5y5"e()

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The gra#ity "oad i $arried primari"y by a !rame upported on $o"umn rather than

bearing wa""' Some minor portion o! the gra#ity "oad $an be $arried on bearing wa"" but

the amount o $arried hou"d not repreent more than a !ew per$ent o! the bui"ding area'

The reitan$e to "atera" "oad i pro#ided by non-bearing !"e2ura" wa"" o! bra$ed !rame'

Bhi"e there i no requirement to pro#ide "atera" reitan$e in the #erti$a" "oad reitan$e

!rame& it i trong"y re$ommended that nomina" moment reitan$e be in$orporated in

the #erti$a" "oad !rame deign' The #erti$a" "oad !rame pro#ide a nomina" e$ondary "ine

o! de!ene e#en though a"" required "atera" !or$e are reited by other !rame' The

preen$e o! a !rame $an pro#ide #erti$a" tabi"ity to the bui"ding and pre#ent $o""apea!ter damage to the !"e2ura" wa"" or bra$ed !rame' The !rame a"o a$t to tie the bui"ding

together and reditribute the "atera" !or$e to undamaged e"ement o! the "atera" !or$e

reiting ytem'

:':';' Mo(en" Re5i5"ing fra(e 5y5"e()

*t i a ytem in whi$h member and joint are $apab"e o! reiting #erti$a" and

"atera" "oad primari"y by !"e2ura"' To qua"i!y !or a repone redu$tion !a$tor R>& the

!rame hou"d be detai"ed $on!orming to *S% 1;.:/-1..; to pro#ide du$ti"ity e2$ept in

eimi$ one **' *n a moment reitan$e !rame& re"ati#e ti!!ne o! girder and $o"umn i

a #ery important' A !rame may be deigned uing weak column-strong girderproportion

orstrong columns-weak girderproportion' A p"ati$ hinge wi"" !orm either at the end o!

a $o"umn or a girder depending upon whi$h i weaker' *t i ob#iou that a !rame with

weak girder- trong $o"umn proportion i more tab"e and there!ore& high"y deirab"e'

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/$/$2 Fle8#ral ,Shear- 6all 5y5"e()

*t i a rein!or$ed $on$rete wa"" deigned to reit "atera" !or$e para""e" to the p"ane

o! the wa"" and detai"ed to pro#ide du$ti"ity $on!orming to *S% 1;.:/-1..;' The

*nternationa" (ui"ding )ode o! Ameri$a *() :/// permit the ue o! !"e2ura" +Shear0

wa"" ytem up to a height o! about 8> m' Howe#er it $an be ued up to a height o! ,/ m&i! and on"y i!& !"e2ura" wa"" in any p"ane do not reit more than ;;F o! the earthquake

deign !or$e in$"uding torion e!!e$t' The purpoe i to enure that ea$h o! thee !our or

more !"e2ura" wa"" are in di!!erent p"ane and pa$ed adequate"y throughout the p"an or

on the perimeter o! the bui"ding in u$h a way that the premature !ai"ure o! a ing"e wa""

or !rame wou"d "ead to e2$ei#e ine"ati$ torion'

:':'> D#al fra(e 5y5"e()

A dua" !rame i a tru$tura" ytem with the !o""owing !eature%

A moment reiting !rame pro#iding upport !or gra#ity "oad'

Reitan$e to "atera" "oad i pro#ided by %-

1' A pe$ia""y detai"ed moment reiting !rame +$on$rete or tee"0 whi$h

i $apab"e o! reiting at "eat :>F o! the bae hear in$"uding torion

e!!e$t'

:' ="e2ura" wa""& that i& hear wa"" or bra$ed !rame mut reit the

tota" required "atera" !or$e in a$$ordan$e with re"ati#e ti!!ne

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$onidering the intera$tion o! the wa"" and the !rame a a ing"e

ytem' Thi ana"yi mut $onider the re"ati#e ti!!ne o! the

tru$tura" e"ement and torion e!!e$t in the ytem' The de!ormation

impoed upon the member o! the by the intera$tion with !"e2ura" wa""

or bra$ed !rame mut a"o be $onidered' The e!!e$t o! higher mode

$ou"d be quite igni!i$ant !or the deign o! !"e2ura" wa"" in the upper

torey' The purpoe o! the :>F !rame i to pro#ide a e$ondary

de!ene ytem with higher degree o! redundan$y and du$ti"ity in

order to impro#e the abi"ity o! the bui"ding to upport the er#i$e "oada!ter earthquake'

:':'9 S9ace fra(e)

*t i a three dimeniona" tru$tura" ytem without hear or bearing wa""

$ompoed o! inter$onne$ted member "atera""y upported o a to !un$tion a a $omp"ete

e"! $ontained unit with or without the aid o! horionta" diaphragm or !"oor bra$ing

ytem'

:':', T#'e Sy5"e()

A tru$tura" ytem $oniting o! $"oe"y pa$ed e2terior $o"umn tied at ea$h

!"oor "e#e" with re"ati#e"y deep pandre" beam' Thu it $reate the e!!e$t o! a ho""ow

$on$rete tube per!orated by opening !or the window' The e2terior $o"umn are

genera""y pa$ed between 1':> to ;'/ m' The pandre" beam inter$onne$ting the $"oe"y

pa$ed $o"umn ha#e a depth #arying !rom 9/$m to 1':> m and width #arying !rom :>

$m to 1'/ m' Su$h a bui"ding ha a #ery high moment o! inertia about the two orthogona"

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a2e in p"an a we"" a torion ti!!ne about the #erti$a" a2i' Su$h a ytem i #ery

e!!e$ti#e in $ontro""ing "atera" dip"a$ement in #ery ta"" bui"ding' Thi $on$ept wa

de#e"oped in ear"y 1.9/G !or the 8; torey


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: 1/; :/8 ;/

> or more 8/

/$4$4 La"eral loa!5

?atera" "oad $an be due to wind and earthquake'

A brie! de$ription about thee "oad are gi#en be"ow%

:';';'1 Bind "oad%

Bind "oad i a phenomenon' The wind peed depend upon e#era" !a$tor u$h

a% denity o! obtru$tion in the terrain& ie o! gut& return period and probab"e "i!e o!

tru$ture et$'

The wind "oad in *S% D,>-1.D,+Part ;0 are baed on two $onideration%

1' The tatiti$a" and probabi"iti$ approa$h to the e#a"uation o! the

wind "oad and

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k; "o$a" topography !a$tor

The deign wind preure pin NIm:at any height abo#e mean ground "e#e" i gone by

the rea$tion%

p /'9 C :

Bhere C deign wind peed in mI at height

:';';': Earthquake "oad%Earthquake $aue random motion o! ground whi$h $an be reo"#ed in any

mutua""y perpendi$u"ar dire$tion' Thi motion $aue tru$ture to #ibrate' The #ibration

intenity o! ground e2pe$ted at any "o$ation depend upon the magnitude o! earthquake&

the depth o! !o$u& ditan$e !rom the epi$enter and the trata on whi$h the Stru$ture

tand' The predominant dire$tion o! the #ibration i horionta"'

The !o""owing aumption ha"" be made in the earthquake reitan$e

deign o! tru$ture

1 Earthquake $aue impu"i#e ground motion whi$h i $omp"e2 and irregu"ar in

$hara$ter& $hanging in period and amp"itude ea$h "ating !or ma"" duration' There!ore&

reonan$e o! the type a #iua"ied under teady tate inuoida" e2$itation wi"" not

o$$ur a it wou"d need time to bui"d up u$h amp"itude'

: Earthquake i not "ike"y to o$$ur imu"taneou"y with wind or ma2 !"ood or ma2

ea wa#e'

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; The #a"ue o! e"ati$ modu"u o! materia"& where#er required& may be taken a !or

tati$ ana"yi un"e a more de!inite #a"ue i a#ai"ab"e !or ue in u$h $ondition'

/$4$2 %er(i55i'le Increa5e in S"re55e5 an! Loa! Fac"or5)

:';'8'1 Permiib"ein$reae in materia" tree%

Bhene#er earthquake !or$e are $onidered a"ong with other norma"

deign !or$e& the permiib"e tree in materia"& in the e"ati$ method o! deign& may

be in$reaed by one third' Howe#er& !or tee" ha#ing a de!inite yie"d tre& the tre $anbe "imited to yie"d tre@ !or tee" without de!inite yie"d point& the tree wi"" be

"imited to D/F o! the u"timate trength or /': F proo! tre whi$he#er i ma""er'

:';'8': ?oad !a$tor%

Bhene#er earthquake !or$e are $onidered a"ong with other norma"

deign !or$e& the !o""owing !or$e may be adopted'

=or u"timate deign o! tee" Stru$ture%

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:';'8'; Permiib"e in$reae in A""owab"e bearing preure o! the oi"%

Bhen earthquake !or$e are in$"uded the permiib"e in$reae in a""owab"e

bearing preure o! oi" ha"" be gi#en in the $ode +*S% 1D.;- 1.D8@ tab"e-10& depending

upon the type o! !oundation o! the tru$ture'

:'8 CODES USED

Cariou "eading nation ha#e !ormu"ated their own Nationa" (ui"ding )ode whi$h

"ay down the guide"ine !or the deign a we"" a the $ontru$tion o! tru$ture in their

$ountrie' Thee $ode ha#e e#o"#ed !rom the $o""e$ti#e widom o! tru$tura" engineer

gained o#er the year and are ti"" e#o"#ing' (ui"ding $ode are de#e"oped& $hanged and

en!or$ed !or one main reaon K a!ety' The #ariou $ode ued in thi proje$t are "ited a

be"ow-

a0 *S 8>9% :/// - )ode o! pra$ti$e !or p"ain and rein!or$ed $on$rete'

b0 *S D,>% 1.D, - )ode o! pra$ti$e !or the deign "oad !or bui"ding and

tru$ture'

Part 1%


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/$: DESIGN %+ILOSO%+IES

There are three deign phi"oophie whi$h ha#e been ued !or the deign o!

rein!or$ed $on$rete tru$ture #i working tre method& J"timate "oad method& ?imit

ate method'

At preent the *S 8>9 re$ommend the ue o! "imit tate method o! deign' Howe#er it haa"o retained the working tre method o! deign'

A brie! introdu$tion about thee theorie i preented be"ow%

/$:$0 7or;ing S"re55 Me"ho!

Thi i a traditiona" method o! deigning rein!or$ed $on$rete' *t i baed on the

prin$ip"e that the permiib"e tre !or the $on$rete and tee" i not being e2$eeded

anywhere in the tru$ture in the wort $ombination o! working "oad $ondition' Auming

that both the materia" obey HookG "aw the e$tion i deigned in a$$ordan$e with the

e"ati$ theory o! bending'

*S K :/// ue a !a$tor o! a!ety equa" to ; on the :D day $ube trength to obtain the

permiib"e $omprei#e tre in bending in $on$rete and equa" to 1',D on the yie"d

trength o! tee" in tenion to obtain the permiib"e teni"e in rein!or$ement' The

idea"ied tre and train diagram are hown be"ow%

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/$:$/ Ul"i(a"e loa! (e"ho!

Thi method ue "oad !a$tor to in$reae the working "oad to obtain u"timate "oad

and in$"ude the non-"inear beha#ior o! $on$rete' Stru$ture i deigned to reit the

deired u"timate "oad' BhitneyG u"timate theory i baed on the aumption that the

u"timate train in $on$rete i /';F and the $omprei#e tre at the e2treme !iber o! the

e$tion $orrepond to thi train' The idea"ied tre and train diagram are hown

be"ow%

SE)T*ON

STRA*N

STRESS

NEJTRA? AL*S

t

$b

b

d9% :/// baed on

boundary $ondition'

The two way "ab are di#ided in midd"e trip and edge trip and deigned

a$$ording"y'

*n our preent proje$t& on"y !our o! thee "ab ha#e been en$ountered' They are hown in

the !igure gi#en be"ow%

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Thee !our "ab $an be denoted a !o""ow%

1' Two adja$ent edge di$ontinuou S0

:' One "ong edge di$ontinuou S/

;' One hort edge di$ontinuou S4

8' *nterior pane" S2

=urther ea$h type o! "ab ha been ubdi#ided baed on their ie'

De"ailing of 5la'

The bottom rein!or$ement hou"d e2tend up to /':>? o! a $ontinuou edge or

/'1>? o! a di$ontinuou edge' *t i re$ommended that a"ternate bar +bottom

tee"0 hou"d e2tend !u""y into the upport'

The negati#e rein!or$ement at the $ontinuou upport hou"d be ditributed

uni!orm"y in the edge trip' At "eat >/F o! thee bar hou"d e2tend to a ditan$e

Two adja$ent edgedi$ontinuou

S0

One "ong edgedi$ontinuou

S/

One hort edgedi$ontinuou

S0

*nterior pane"S0

Fig$ /$2$ Sla' Cla55ifica"ion

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o! /';? !rom the !a$e o! the $ontinuou upport& on either ide' The remaining

bar may be $urtai"ed at a ditan$e o! /'1>? !rom the !a$e o! the $ontinuou

upport'

To a!e guard againt poib"e negati#e moment at a di$ontinuou edge due to

partia" !i2ity the $ode re$ommend that top tee" area equa" to >/F o! that o! the

bottom tee" at mid pan +in the ame dire$tion0 hou"d be pro#ided e2tending

o#er a "ength o! /'1?

At&27i! both edge meeting at the $orner are di$ontinuou'

:' /';,> At&27i! one o! the edge i di$ontinuou'

;' No rein!or$ement !or interna" $orner'

/$?$/ BEAMS

Thee are the bai$a""y !"e2ura" member on whi$h the "ab ret' The beam& are in

turn upported on $o"umn to whi$h they tranmit the "oad' (eam $an ha#e quare&

re$tangu"ar or !"anged +T or ?-haped0 $ro-e$tion' Bith repe$t to the rein!or$ement

pro#ided beam $an be ing"y rein!or$ed or doub"y rein!or$ed' =or the deign o! beam

we ued Staad Pro +Cerion ://80' =irt the impoed "oad are tran!erred to the #ariou

!rame in the bui"ding manua""y& a!ter deigning the "ab in the #ariou !"oor' The yie"d

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"ine theory i ued to $a"$u"ate the ditribution o! dead a we"" a the "i#e "oad $oming on

to ea$h beam !rom the "ab'

/$?$4 COLUMNS

Thee are the #erti$a" ke"eta" tru$tura" e"ement whi$h may be re$tangu"ar&

quare& $ir$u"ar et$' in their $ro-e$tiona" hape' The ie o! the e$tion i go#erned by

e!!e$ti#e "ength o! the $o"umn and "oad a$ting on it& whi$h in turn depend on the type

!"oor ytem& pa$ing o! $o"umn& number o! torey et$' The $o"umn i genera""y

deigned to reit a2ia" $ompreion $ombined with Jni-a2ia" or (i-a2ia" bending

moment that are indu$ed by !rame a$tion' *t i a"o ad#iab"e to redu$e the unupported

"ength o! the $o"umn by pro#iding appropriate tie beam- otherwie they may ha#e to be

deigned a "ender $o"umn'

ie"d "ine theory in two way "ab

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/$@ BASICS STE%S IN STADD %RO ANALYSIS

)reating the tru$tura" geometry% the !rame i $reated !rom the gi#en tru$tura"

p"ane area o! the ea$h !"oor' Ea$h e"ement o! the !rame i $a""ed a member' And

the joint o! the !rame i $a""ed a node in STAA< Pro'

Aigning the member property% The aumed dimenion o! the member i

aigned to ea$h member by e"e$ting the member'

Support )ondition% The $ondition o! upport u$h a pinned& !i2ed& ro""er i aign

to the node' *n our $ae on"y !i2ed $ondition wa en$ounter'

?oading% A!ter aigning the upport $ondition to the node the di!!erent "oad i

app"ied to ea$h member'

Running the ana"yi and deign% A!ter aigning a"" the $ondition the !rame i

ana"yed by per!orming ana"yi $ommand !rom the !i"e menu'

Output% The output o! the ana"yi i dire$t"y #iewed !rom the #iew output

$ommand' The output wi"" be in the !orm o! upport rea$tion& mid pan moment&

end moment& hear !or$e et$' a we"" a the e$tion dimenion and the

rein!or$ement pro#ided'

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LOAD COM%UTATION AND ANALYSIS

4$0 STRUCTURAL FRAME7OR

%lan 6i"h Di(en5ion5 Thep"an i generated baed upon p"otting o! the node !rom join 1 to 8:9'The ;-< mode" o! the propoed tru$ture i hown in !ig ;'1

4


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Fig 4$0 4


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Fig 4$4$ I(9o5e! loa!

Analy5i5 S#((ary,DLLL-

Tab"e ;':

4$/$/ DL LL co('ina"ion

The a"ternate "oading o! di!!erent pane" ha#e been aumed depending upon the

o$$upan$y o! di!!erent habitat in bui"ding !or intan$e the adminitrati#e o!!i$e& "ibrary&

$orridor wi"" a"way be under impoed "oad wherea many a time !a$u"ty room& tore

room et$' may not be "oaded'

;1


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Fig $ 4$2 Al"erna"e 9anel loa!ing of "he 4

Fig $ 4$:$ Al"erna"e loa!ing a" 05" an! 4r! floor

;:


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Fig $4$= Al"erna"e Loa!ing a" /n!floor

Analy5i5 S#((ary,DLAL-Tab"e ;';

;;


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4$/$4 DL LL 7L

7in! loa! calc#la"ion

(ai$ Bind Speed !or A""ahabad Cb 8,mI

1& Probabi"ity =a$torI Rik =a$tor 1

:& Terrain 3 Sie o! the tru$ture 1'/>

+Terrain $ategory : 3 (ui"ding )"a ( 3 Height 1, m0

;& Topography !a$tor 1';9


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4$/$2 DLLL7L, Direc"ion-

Fig$ 4$? DLLL7L, Direc"ion-

Analy5i5 S#((ary,DLLL7L ,8 !irec"ion--Tab"e ;'8

;>


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4$/$: DL LL 7L ,


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4$/$= DL LL EL

Ear"h#a;e loa! calc#la"ion5

U Seimi$ ?oad o! the Stru$ture 81,:/'9:>kN

U Height o! the Stru$ture 1,'> m

U No o! Storey +n0 >

U B1 D9D;':>kN

U B1 B: B; B8 Seimi$ wt o! ea$h !"oor

U Seimi$ "oad o! roo! 9.D,'9:> kN

a$ For Calc#la"ion of 'a5e 5hear

Earthquake Vone ***

V '19

* 1'>

R ;

T '/D>h'/,> +!or h 1,'> m0

T ',:, e$

Soi" type ** +medium oi"0

SaIg :'/

Ah horionta" Seimi$ )oe!!i$ient I: SaIg *IR

Ah '/D

Cb Ah B

Cb ;;;,'9> kN

;,


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'$ Di5"ri'#"ion of 'a5e Shear on "he fra(e

i ,*' 7i hi/-H,6i hi/-

W1 99'>. kN

W: :99';D kN

W; >..';9 kN

W8 1/9>'>> kN

W> 1;;.',D kN

4$/$? DL LL EL , !irec"ion-

Fig 4$ DLLLEL, Direc"ion-

;D


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Analy5i5 S#((ary,DLLLEL ,8 !irec"ion-

Tab"e ;'>

4$/$@ DLLLEL ,


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Analy5i5 S#((ary,DLLLEL ,


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Analy5i5 S#((ary,DLLLEL ,> !irec"ion--

Tab"e ;',

4$/$01 DLLLEL , !irec"ion-

Fig 4$0/ DLLLEL , !irec"ion-

81


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Analy5i5 S#((ary,DLLLEL , !irec"ion--

Tab"e ;'D

8:


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SLAB DESIGN

2$0 GENERAL*n thi $hapter the deign and detai"ing o! !ew e"e$ted e"ement are preented'

2$/ SLAB The deign o! three di!!erent type o! "ab a hown in !ig 8'1 are preented'

Fig $2$0 Cla55ifica"ion of Sla'

Ty9e 0 ) T6o 7ay 4 e!ge5 !i5con"in#o#5 an! one e!ge

con"in#o#5

8;


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Ty9e 0J) T6o e!ge5 !i5con"in#o#5 an! "6o e!ge5

con"in#o#5

Ty9e / ) One 6ay 5la'

2$4 SLAB< TY%E 0

Thi$kne o! the "ab/'1:m'

?2>'1:m& ?y>'1:m'

(2 /'/8;

-/'/>,

(y/'/8;

S"ab dead "oad ; knIm:'

Superimpoed "oad;knIm:

=a$tored "oad 1'>9.knIm:'

M2 /'/8;. +>'1:0:1/'1> kn-mIm +at mid pan0

M2 -1;'88kn-mIm +at edge0

My /'/8;.>'1:: 1/'1>kn-mIm'

A1+/';9;/1////'8D1:/0I+/'D,81>01,::'., mm:Im'

So pro#ide 19 -1:X bar at 9/mm $I$ pa$ing'

KE!ge reinforce(en" ,!i5con"in#o#5-

Minimum rein!or$ement /'1:F/'1:1:/1///188mm:'

So ue D mm bar at 1//mm $I$'

KCorner reinforce(en"

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0 A" !i5con"in#o#5 corner

/',>1,::'.,1:.:'::mm:

So pro#ide 1, -1/X bar at 9/ mm $I$ a"ong both pan 'Pro#ide in 8 "ayer'

/ A" con"in#o#5 corner

+/',>1,::'.,0I:989'11mm:'

So pro#ide D K 1/X bar at 1:/ mm $I$ a"ong both pan in 8 "ayer'

2$2 SLAB TY%E II

One 6ay 5la'

knIm

='*'?1'>;8'> knIm

Tota" dead "oad 8'>>::'> kn'

Tota" impoed "oad 8'>>::'> kn'

kn-m

So moment at E :/'9:> kn-m


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So tota" moment at ( :;',>'

Moment at =::'>> +1I1971I1:019'81'

So then :;',>1/9/'D,81>At +.1-81>AtI+;/1///00

/'/991/9.1AtK /'/1;DAt:'

At Y.17-Z[+.1:0 K 8 +/'/990 +/'/1;D1/90\]I+:/'/1;D0'

Atb D:.',1 mm:Im'

Ate ,:/'>8 mm:Im

At! >,;':. mm:Im'

At point (

Pro#ide D -1: X bar at 1:> mm $I$

At point E

Pro#ide , -1: X bar at 18/ mm $I$

At point =

Pro#ide > - 1: X bar at :// mm $I$'

Temperature rein!or$ement

/'1>1:/1//1D/ mm:Im

So pro#ide 8 K D X bar at :>/ mm $I$'

89


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2$: SLAB DETAILING

The detai"ing o! di!!erent "ab deigned are preented in !ig' 8': to 8'8

Fig 2$/ Sla' De"ailing Ty9e 0

8,


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The tran#ere and "ongituna" rein!or$ement $an be $a"$u"ated imi"ar"y a !or type -1

"ab with $hange in moment $o!!e$ient

Fig 2$4 Sla' corner !e"ailing of Sla' "y9e 0J

8D


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Fig 2$2 Ty9e / Sla' !e"ailing

8.


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BEAM DESIGN

:$0 BEAM 0

>/


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:$/ BEAM /

>1


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:$4 BEAM 4

>:


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:$2 DETAILING

Fig :$0%lan

>;


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Fig $:$/ Elea"ion

>8


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COLUMN DESIGN

=$0 CALCULATION

=$0$0 E8"erior col#(n !e5ign

PJ81D/'D: N

MJ:;:'11 kn-m

e:;:'11I81D/'D:>>':,mm

1' emin ;>//I>//78>/I;/::mm:' emin:/mm

Now eemin but "ie within the e$tion '

eI< >>':,I8>//'1:^/'>

1///I8>/D'.8

Short $o"umn___'

PJI!$kb


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PJI!$kb/8>/I1//D1//mm: (So provide 26 no of bars of 20 mm dia.)

=$0$/ In"erirr col#(n !e5ign

PJ;D8;'1,n

MJ::1',9n-m

e::1',9I;D8;'1,>,',/mm

1 emin:: mm

: emin:/ mm'

eemin but "ie within the e$tion

eI< >,',/I8>//'1;^/'>

1///I8>/D'.8

Short $o"umn___'

PJI!$kb


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Multistory Framed Structure 2005