COMPUTER AIDED DESIGN FOR CIVIL ENGINEERS -Series 1 ETABS 2015
Various Civil Civil softwares available in the market are are STAAD Pro, Pro, STRUTS, STRAP, STRUDS, RISA, GTS, ETABS, ETABS, NISA, SAP 2000, 2000, ANSS, A!A"US, #s$ Natran, P%A&IS an' SAFE( SAFE(
Amon) them STAAD Pro an' *TA!S are lea'in) 'esi)n 'esi)n software in the the market(
In this Seminar +e fo$us on *TA!S Software(
*TA!S is se$ial urose anal-sis an' 'esi)n ro)ram 'eveloe' se$iallfor !uil'in) S-stems(
ETABS is short form for E.ten'e' Three/'imensional Anal-sis Anal-sis of Buil'in) S-stem(
*TA!S uses Stiffness #atri. #atri. metho' of stru$tural stru$tural anal-sis for members an' 0*A for Plates(
1D Ren'erin) Ren'erin) is available in *TA!S(
*TA!S has time savin) otion 23ne store-, All store-, store-, Similar store-4( store-4(
*TA!S has built in )ri' No( A,!,C,D(
It has two s$reen in 'efault( 'efault( %eft si'e shows lan view an' an' Ri)ht si'e shows shows
5,6,1
1D Isometri$ view or elevation(
In *TA!S !eams an' Columns Columns are known as as line ob7e$ts( Slabs an' an' Shear walls are known as Area ob7e$ts(
It has built in temlate(
It has built in $o'e books(
It will $al$ulate loa's automati$all- on beams an' $olumns(
It is eas- to )ive floor loa' for irre)ular anels(
It erforms win' loa' an' earth8uake anal-sis(
Automati$ lumin) lumin) of masses masses for earth8uake( earth8uake(
Diahra)m a$tion(
Choi$e of *i)en or Rit9 ve$tor for Resonse Se$trum Anal-sis(
Du$tile 'etailin) as er IS 51:6;(
Auto $al$ulation $al$ulation of beam reinfor$ements reinfor$ements base' on moments at $olumn $olumn fa$e, rather than at $olumn $entre line an' $olumn reinfor$ements base' on moments at beam soffit, rather than at beam $entre line(
Desi)n of of $olumns $olumns of $ross se$tion se$tion shae shae in$lu'in) in$lu'in) T, %, <(
It 'esi)n shear walls(
It 'isla-s reinfor$ement areas or er$enta)e on ea$h beam an' $olumn(
Constru$tion Constru$tion se8uen$e anal-sis an' Pushover anal-sis $an be 'one b- *TA!S(
It has in built %ive loa' re'u$tion for uer floors as er $o'al rovision(
A''itional software for $omonent $omonent 'esi)n 'esi)n se$iall- foun'ation foun'ation 'esi)n 'esi)n usin) SA0* software2#at foun'aion, PT slab 'esi)n4(
Disa'vanta)es=
It 'oe not suort for sloin) roofs(
It has built in $o'e books(
It will $al$ulate loa's automati$all- on beams an' $olumns(
It is eas- to )ive floor loa' for irre)ular anels(
It erforms win' loa' an' earth8uake anal-sis(
Automati$ lumin) lumin) of masses masses for earth8uake( earth8uake(
Diahra)m a$tion(
Choi$e of *i)en or Rit9 ve$tor for Resonse Se$trum Anal-sis(
Du$tile 'etailin) as er IS 51:6;(
Auto $al$ulation $al$ulation of beam reinfor$ements reinfor$ements base' on moments at $olumn $olumn fa$e, rather than at $olumn $entre line an' $olumn reinfor$ements base' on moments at beam soffit, rather than at beam $entre line(
Desi)n of of $olumns $olumns of $ross se$tion se$tion shae shae in$lu'in) in$lu'in) T, %, <(
It 'esi)n shear walls(
It 'isla-s reinfor$ement areas or er$enta)e on ea$h beam an' $olumn(
Constru$tion Constru$tion se8uen$e anal-sis an' Pushover anal-sis $an be 'one b- *TA!S(
It has in built %ive loa' re'u$tion for uer floors as er $o'al rovision(
A''itional software for $omonent $omonent 'esi)n 'esi)n se$iall- foun'ation foun'ation 'esi)n 'esi)n usin) SA0* software2#at foun'aion, PT slab 'esi)n4(
Disa'vanta)es=
It 'oe not suort for sloin) roofs(
It $annot )enerate floor floor loa's( ou have to to mo'el slabs( ou ou have to mo'el slabs as late element > mesh it an' al- floor loa's on it(
ou $anot know know what is haenin) haenin) insi'e insi'e the anal-sis anal-sis en)ine of the software as like STAAD Pro(
The reort 'o$umentation is not so )oo' when $omare to STAAD Pro?s reort(
ETABS Screen
Title !ar= It is on the to of the s$reen( +hen the ro)ramme is in use, this title bar is hi)hli)hte'( It in$lu'es ro)ram an' mo'el name( #enu !ar = It $ontains ro)ram?s ro)ram?s menus from whi$h various various $omman's $an be sele$te' to erform se$ifi$ a$tions( Tool !ars an' !uttons= !uttons= The tool bars are ma'e u of buttons buttons la$e' at to an' si'e of the s$reen( +e $an a$$ess $ommonl$ommonl- use' $omman's $omman's b- sin)le $li$k $li$k on the button( #o'el *.lorer= It allows eas- a$$ess to mo'el 'efinition 'ata in$lu'in) Proertforms, loa' 'efinitions an' ob7e$t forms as well as Anal-sis, Desi)n, Detailin) results in )rahi$al( Disla- win'ows= win'ows= It shows )eometr)eometr- of the mo'el( The 'isla'isla- in$lu'es roert-, roert-, loa'in), anal-sis anal-sis or 'esi)n results results an' 'etailin) ( Disla- title title tab= It is lo$ate' at to of 'isla- win'ow( win'ow( It is hi)hli)hte' hi)hli)hte' when the asso$iate' 'isla- win'ow is a$tive( a$tive( Status bar= It is lo$ate' at bottom of main win'ow( Te.t 'es$ribes $urrent status of the ro)ram( #ouse ointer ointer osition osition $oor'inates = it 'isla-s 'isla-s on the the ri)ht si'e si'e of status status bar( bar( Drawin) > sele$tion Dro 'own 'own list= It is on the ri)ht si'e of of status bar( 3ne Store-, Store-, All Stories, Similar Similar Stories are are the three otions otions in the 'ro 'own menu( +ith 3ne 3ne Store- otion, an ob7e$t is $reate' onl- at the store- level on whi$h it is 'rawn( All Stories otion enable' to $reate ob7e$ts at all store- levels in the mo'el at the same lan lo$ation( Similar store- otion enable' to $reate ob7e$ts at all similar similar store- levels in the the mo'el( mo'el( Current units= units= It is lo$ate' on the the far ri)ht si'e of of the status bar( This $an be $han)e' at an- time 'urin) mo'el $reation ro$ess( The various M!in "en# an' "en# an' sub menus are as 0ollows=
M!in Men#s
Too$ %!rs = %eft Si'e Tool bars
To Tool bars=
New mo'el, 3en, Save, Un'o, Re'o, Refresh +in'ow, Run anal-sis 20@4, Rubber ban' 9oom, Restore 0ull view, Restore revious 9oom, oom in one ste, oom out one ste, Pan, Set Default 1D view, Set Plan view, Set *levation view, Rotate 1D view, Perse$tive To))le, Above U, #ove 'own, 3b7e$t shrink To))le, Set 'isla- 3tions, *.tru'e' view To))le, transaren$To))le, Show Un 'eforme' shae20B4, Disla- %oa' 7oint Assi)n, Disla- 0rame' loa' Assi)n, Disla- Shell loa' Assi)n, Show Deforme' shae204, Disla- SuortSrin) Rea$tion20E4, 'isla- framePier San'rellink for$e20F4, Disla- Shell Stresses( 0or$es 20:4, Show name' 'isla-, Steel 0rame Desi)n, Con$rete 0rame Desi)n Comosite !eam Desi)n,, Comosite Column Desi)n, Steel oist Desi)n, Shear +all Desi)n, Steel Conne$tion Desi)n(
=
Comparison of STAAD Pro & ETABS
S&No&
Descri'(ion
STAAD Pro
ETABS
5
#o'el Creation
An- t-e of stru$ture $an It has inbuilt librar- for be anal-se' > 'esi)n mo'elin) buil'in) stru$tures with its fle.ible mo'elin) onl-( environment
6
1D ren'erin) view
It shows 1D ren'erin) view to some e.tent onl-(
1
Stru$tural anal-sis
Stiffness #atri. metho' It uses Stiffness #atri. for for stru$tures an' 0*# stru$tural anal-sis 0or for late elements( members > 0*A for lates(
B
!en'in) moment Shear for$es
@
0loor %oa'in)
Diffi$ult to al- floor *as- to al- floor loa' loa' for o'' shae( even for irre)ular anels(
0loor loa's
It $an )enerate %oa's easil-(
E
%ive loa' re'u$tion
It 'oes not have %ive %ive loa' Re'u$tion for %oa' Re'u$tion fa$ilit-( uer floors is available( +e have to 'efine $omman' romt to 'o the same(
F
*arth8uake anal-sis
It $annot )enerate Auto lumin) of masses for *arth8uake lumin) of earth8uake( *arth8uake masses( for$e $an be alie' on anan)le 2Not 7ust & or alone(
:
Time savin) otions
#ember roert-, loa'in) $an be )iven b- $ut se$tion with ran)e bsele$tin) new view(
S&No&
Descri'(ion
>
It )ives !#D > Shear for$es to the $entre line of $olumns
STAAD Pro
It shows 1D ren'erin) view with real )oo' effe$t on the stru$ture(
!#D > Shear for$es are $al$ulate' from fa$e of $olumn a$$uratel-(
0loor It $annot )enerate 0loor %oa's( ou have to mo'el slabs as late element > mesh it an' al- floor loa's on it(
It has time savin) otions 3ne store-, Similar storean' All store-(
ETABS
5;
Column 'esi)n
Column 'esi)n with $ross Desi)n $olumns with $ross se$tion of T,%, < shae se$tion of an- arbitrarare not ossible( shae2in$lu'in) T,%, <4
55
S$hemati$ reresentation of Reinfor$ement 'etails
It 'oes not have s$hemati$ reresentation of reinfor$ement on $olumns > beams
It 'isla- reinfor$ements area, H of steel on $olumn > beam frames(
56
Diahra)m a$tion
It 'oes not have 'iahra)m fa$ilit- for win' > earth8uake automati$all-
It have 'iahra)m a$tion2with earth8uake loa's > win' loa's automati$all- alie' on the 'iahra)m $entre4
51
Reort
It )ives anal-sis > 'esi)n reort 'o$umentation in a )oo' manner(
It 'oes not )ive su$h 'o$umentation reort(
ANAL)SIS * DESIGN OF FOUR STORE) RCC MULTISTORE)ED BUILDING USING ETABS 2015 D!(! No( of store-s
=
G0 <1
0loor to floor hei)ht
=
1(1@m
ei)ht of Plinth above G%
= 5(6;m
Deth of foun'ation below G% = 6(5;m %en)th alon) & a.is
= 6B(B;m 2F ba-s J!a- 5K1(1;m,!a- 6K1(1@m, !a- 1K1(1@m, !a- BK1(1@m, !a- @K1(1@m !a- K1(1@m, !a- EK1(1@m > !a- FK1(1@m4
%en)th alon) a.is
= 5B(;m 26 !a-sJ !a- 5KF(B;m, !a- 6K(B;m4
Column si9e
= ;(1; . ;(@;m
%on)itu'inal beams
= ;(1; . ;(B@m
Transverse beams
= ;(61 . ;(@;m
Con$rete )ra'e
= #6;
Steel )ra'e
= 0e B5@
S!C of soil
= 6;; LNm 6
1&Geo"e(r+ cre!(ion=
3en *TA!S from Deskto or from Start #enu The start u s$reen will aear(
Cli$k New mo'el(
In this Sele$t use !uilt/in Settin)s with otion( Choose SI units, In'ian Co'es as shown above an' $li$k 3L(
No( of )ri' lines in & Dire$tion
= :
No( of )ri' lines in Dire$tion
= 1
Sa$in) of Gri's in & Dire$tion
= 1(;@m
Sa$in) of Gri's in Dire$tion
= (6;m
In Store- Dimensions enter No( of store-s
= B
T-i$al store- hei)ht
= 1(1@m
!ottom store- hei)ht
= 1(1@m
Sele$t Gri' 3nl- button
3k(
Note = sIf -ou want to $han)e the ba$k)roun' Go to #ain menu DislaGrahi$al
Disla-
Set
'isla- $olor b- $han)in) s$reen as !lo$k
ba$k)roun' 3k(
Go *'it
*'it
Store- 'ata *'it store-( 3R Ri)ht $li$k on the s$reen Cli$k
A''#o'if- 'ata(
Choose #o'if-Show Store- Data( Cli$k #o'if- Show Store- 'ata to see the followin) s$reen(
Ri)ht $li$k insi'e the s$reen( Choose A'' Store-
Lee
*.istin) Store- ei)hts(
The followin) s$reen will aear( A'' Store- ei)ht as 1(1@m( No( of A''e' store-s as 5( Insert Above Store- to Store- B an' Reli$ate New Store- as Store- B 3k(
2& De,ine M!(eri!$ Pro'er(ies= 0rom #ain menu
Define #aterial
roert-
0ollowin) s$reen will aear(
A'' New material
Choose
the stan'ar' an' #aterial t-e )ra'e as #6;(
0ollowin) s$reen will aear(
3k(
Similarl- A'' New material as SD Gra'e B5@
3k(
Choose
the stan'ar' an' rebar #aterial t-e )ra'e
0ollowin) s$reen will aear(
& De,ine Sec(ion Pro'er(ies= Define Column = 0rom #ain menu
Define Se$tion
0ollowin) s$reen will aear(
roerties
0rame
se$tion(
Cli$k A'' New roert-( Choose Con$rete Re$tan)ular an' $li$k on the Re$tan)ular shae button to see the followin) s$reen(
Give Proert- Name sa- Col 5 for $olumn 5( Choose #aterial as #6; an' )ive se$tion 'imensions Deth = @;; mm +i'th= 61; mm( Then $li$k #o'if-show Rebar(
Choose Desi)n T-e as P/#6/#1 Desi)n $olumn, Re$tan)ular reinfor$ement, Ties an' other 'etails like #ain bar si9es, $over, stirrus 'etails et$(
Define !eam= 0rom #ain menu
Define Se$tion
roerties
0rame
se$tion( 0ollowin) s$reen
will aear(
Cli$k A'' New roert-( Choose Con$rete Re$tan)ular an' $li$k on the Re$tan)ular shae button to see the followin) s$reen(
Give Proert- Name sa- !5 for !eam 5( Choose #aterial as #6; an' )ive se$tion 'imensions Deth = @;; mm +i'th= 61; mm( Then $li$k #o'if-show Rebar(
Choose Desi)n T-e as #1 Desi)n onl- 2!eam4, Give $over 'etails(
Define Slab = 0rom #ain menu
Define Se$tion
roerties
Slab
se$tion(
0ollowin) s$reen will aear(
Cli$k A'' new roert- button for a''in) new slab(
Give slab name as S5, mo'elin) t-e as #embrane an' Thi$kness as 55; mm 3k( 3k(
.& Dr!/in (e S(r#c(#re Be!"s3 Co$#"ns !n4 S$!%s Note= #ake sure Sna to Gri' is 3n, in or'er to sna to e.istin) )ri'( 0or that ri)ht Cli$k
Choose
Sna otion
Cli$k
3k
Drawin) !eam= Choose Store- @ #ain #enuDraw !ra$e(
Draw
!eamColumn !ra$e ob7e$ts Draw !eam Column
Choose !5 in Proerties win'ow( Set similar store- an' win'owin) entire !eam(
0or "ui$k Draw !eams Columns otion( Choose Similar store- otion from bottom ri)ht of the s$reen( Draw the beams b- siml- $li$kin) on the )ri'( This will 'raw beams on all floors( Drawin) Column = Set lan view in Store- @ #ain #enuDraw
Draw
!eamColumn !ra$e ob7e$ts Draw !eam Column
!ra$e( 3R "ui$k Draw Columns( Choose Col 5 in roerties win'ow( !- sele$tin) A$$ S(ories otion button from bottom ri)ht of the s$reen( Draw $olumns b- $li$kin) all $olumn lo$ations or b- win'owin) all $olumns(
Drawin) Slab= #ain #enuDraw
Draw
0loor +all ob7e$ts "ui$k 'raw 0loor+all
Choose S5 in Proert- win'ow on the left( Cli$k on ea$h re$tan)ular )ri' where slabs shoul' $ome( 3R on left si'e s$reen Sele$t Al tool bar for sele$tin) all ortion of slab( Sele$t Si"i$!r s(oreies otion button for sele$tin) all floor slabs(
5& Assinin S#''or( Con4i(ion Set !ase floor Plan view in left win'ow
Set
0rom #ain menu Assi)n oint oint
Column oints 2with mouse4(
Restraints
2suorts4
Sele$t
0i.e'3k(
6& De,inin Lo!4s = Gr!7i(+ $o!4s De!4 * Li7e $o!4 Note= 0or Self wei)ht multilier will be 5 for slabs, beams an' $olumns of 'ea' loa'( 0or other loa's, it will be 9ero( Dea' %oa' of !eams, Columns an' slabs are automati$all- $al$ulate' b- *TA!S as er Se$tion Proerties an' #aterial roerties that we have assi)ne' alrea'- for 'ea' loa' $al$ulation( Definin) %oa' Patterns= #ain menu
Define %oa'
Patterns(
!- Default the s$reen will show onl- Dea' an' %ive %oa'( If -ou want to a'' another loa's like +in' or earth8uake loa's, )ive a name un'er loa' an' $hoose t-e an' $li$k a'' New %oa' button( Definin) %oa' $ases= #ain menu
Define loa'
Cases(
Definin) %oa' Combinations= #ain menu
Define
%oa' Combinations(
Cli$k A'' New Combination button( Give Name an' 0a$tor loa' as 5(@; for D% . 5(@ < %% . 5(@
Cli$k
3k(
%oa's on Slab= Lee Plan view in Store- @( Choose one Store- in bottom ri)ht( #ain menu
Assi)nShell
%oa's Uniform (
Roof loa' = Terra$e +ater roofin) loa' K6(@; LNm 6 %ive %oa' for RoofK5(@;LNm 6
Choose Dea' in %oa' Pattern, )ive 6(@; LNm 6 as %oa'( Choose Gravit- as Dire$tion, $hoose A'' to *.istin) %oa's(
Sele$t all slabs 7ust b- $li$kin) on ea$h slab as below Cli$k Al-
3k(
Now a)ain sele$t all slabs( Choose %ive loa' as 5(@; LNm 6 Al-3k( 0loor %oa's= 0loor finish K 5(; LNm 6 %ive %oa' KB(; LNm 6 Lee the Plan view as Store- 5( Choose Similar Stories button in bottom ri)ht( #ain menu
Assi)nShell
%oa's
Uniform(
Sele$t all slabs 7ust b- $li$kin) on ea$h slab an' )ive the %oa' value as 5(; LNm 6 Al-3k(
Similarl- )ive %ive loa' as B(; LNm 6 for all other floor slab( +all loa's on !eam= Paraet wall K@ LNm 6
Lee Plan view in Store- @( Choose 3ne Store- button in bottom ri)ht( Sele$t 3uter beams 7ust b- $li$kin) on ea$h beams( #ain menu
Assi)n0rame
%oa's
Distribute'(
Choose loa' as Dea', Give Uniform loa' as @ LNm ( Choose A'' to e.istin) %oa's( Dire$tion= Gravit-
Al-3k(
+all on 0loor beams= *.ternal wall %oa' 61; mm thi$k K5B(@; LNm Internal +all %oa' 55@;mm thi$k K(; LNm Lee Plan view in Store- 6( Choose Similar Store- button in bottom ri)ht 20or store- 1, Store- B4( Sele$t 3uter beams 7ust b- $li$kin) on ea$h beams( #ain menu
Assi)n0rame
%oa's
Distribute'(
Choose %oa' attern as Dea', Uniform %oa'K5B(@;LNm, sele$t A'' to *.istin) %oa's
Al-3k(
Similarl- sele$t inner beams 7ust b- $li$kin) on ea$h !eams(
Al- Uniform %oa' K(; LNm
Al-3k(
+all %oa' on Plinth !eams= *.ternal +all loa' K6;(@ LNm Internal +all %oa' K 5;(6; LNm Lee Plan view as store- 5 with 3ne store- otion in bottom ri)ht( Sele$t outer beams an' assi)n Dea' loa' for Plinth beam as 6;(@ LNm an' sele$t inner beam an' assi)n Dea' %oa' for linth beam as 5;(6; LNm similar to roof beam on Paraet wall( Con$entrate' or Point loa' Due to Se$on'ar- beams=
Lee Store- 5 in Plan view, $hoose Similar stories button in bottom ri)ht 20or Store- 6, store- 1, Store- B4( Sele$t all the Transverse !eam of F(B;m len)th 7ust b- $li$kin) on the beams( #ain menu
Assi)n0rame
%oa's
Point(
Choose %oa' as Dea' %oa' as 0or$es, Choose A'' to e.istin) loa's, )ive %oa' 'istan$e as 6(6m, %oa' as 1@(5B LN( Choose Absolute Distan$e from en' 5 Al-3k(
In the similar wa- )ive %ive loa' as 56(6F LN as $on$entrate' %oa' on all floor beams of transverse beams( To view %oa's= Cli$k on Disla- 0rame' %oa' i$on on the tool bar as shown below=
8& Cec9 (e Mo4e$= #ain menu
Anal-se Che$k
#o'el(
Che$k mo'el have no errors or warnin)(
Close the s$reen( :& An!$+sis= #ain menu
Anal-se Run
Anal-sis or use 0@(
After su$$essfull- anal-9in) -ou will see the 'eforme' shae as 'efault s$reen(
;& Res#$(s = #ain menu
Disla- Un'eforme'
Shae or 0B button(
To see the %oa's a$tin) on the stru$ture= #ain menu
Disla- %oa'
Assi)ns(
To view !#D > S0D= #ain menu i$on(
Disla- 0rame
ierSan'rel %ink 0or$es or 0F button or
Sele$t %oa' $ase 2Case4 or Combination 2Combo4, #oment or Shear values(
!#D Dia)ram
S0D Dia)ram View
set
elevation view( Sele$t !#D for the re8uire' frame(
!#D for the frame
Ri)ht $li$k on an- !eam to see the in'ivi'ual beam !#D > S0D as below=
To *rase the Results= In or'er make $han)es in the #o'el after run the anal-sis, -ou have to erase the results( #ain menu Disla- Unlo$k #o'el(
Cli$k 3k( Then after makin) ne$essar- $han)es run the ro)ram a)ain( 11& Concre(e Desin #ain menu
Desi)n Con$rete
frame Desi)n
Set to *levation viewK5 in ri)ht win'ow the 0rame(
Start
Desi)n Che$k(
Reinfor$ement
area will be 'isla-e' on
Ri)ht $li$k on an- of the member to see the 'esi)n information(
Cli$k summar- button to view the 'etaile' result(
/Summar/ 0le.ural 'etails / Shear 'etails / *nveloe 3k( To see the H of steel on !eams an' Columns= #ain menu Desi)n Con$rete frame 'esi)n Disla- 'esi)n Information Sele$t Desi)n oututK rebar H 3k( 12& De(!i$in = #ain menu Detailin)
Detailin)
Con$rete
Detailin) Preferen$es 2for settin) units4
Comonent Preferen$es 2for settin) labels et$4
Detailin) Rebar Sele$tion Rules 2for %on)itu'inal, Stirrus 'etails4 Detailin)Start Detailin) 2will start 'etailin) the members4
