Multistory Framed Structure 2005
Transcript of 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-
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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"
88
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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 $I$'
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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
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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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