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GT STRUDL

B.MUNIRAJA M.TECH (CADS), M.I.E, C.Eng., F.I.V Consultant – GT STRUDI!ag" G#a$%& Eng%n""#%ng S"#'%"s 't t* 

Capabilities

on

Dynamics & Finite Element Analysis

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Types of Dynamic Analysis

Eigenvalue Analysis- Computation of Natural Frequencies & Mode Shapes

GT LANCZOSS!S"AC# $T#%AT$ONT%$$AGONAL$ZAT$ON

Response Spectrum Analysis

- For #arthqua'e loadin(s & Modal Com)ination%MS* "%MS* A!S SM* C+C* N%C G%"* N%C T"M* N%C SM

Transient Time History Analysis

Model Superposition & irect $nte(ration of #quation of motion

Steady State Analysis,armonic Loads

Maimum Response Harmonic AnalysisComputer pea' stead state response

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Se!uences of 

"erforming

Dynamic Analysis

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.NAM$C ATA COMMANS

INERTIA OF JOINTS LUMPED / CONSISTENT

- Automatic computation of lumpe ma!! "a!e on en!it#

INERTIA OF JOINTS MASS o$ %EI&'T

- Aitional lumpe ma!! to "e ae

INERTIA OF JOINTS FROM LOADS

-Immeiate computation of lumpe ma!! f$om applie

loa! at (oint! an mem"e$!

INERTIA OF JOINTS LUMPEDINERTIA OF JOINTS %EI&'T

INERTIA OF JOINTS FROM LOAD )* +* ALL DOF

PRINT D,NAMIC JOINT INERTIA

PRINT D,NAMIC MEMER ADDED MASS

JOINT INERTIAS--------------

.... INERTIA OF JOINTS LUMPED 'AS EEN SPECIFIED

.... EFFECTIE FRACTIONAL MEMER LEN&T' FOR MASS MOMENT OF INERTIA TERMS IS *0)**E-*)

.... JOINT INERTIAS ARE IN T'E CURRENT %EI&'T UNITS

.... ACCELERATION OF &RAIT, 1 203*445*

JOINT TRANS 6 TRANS , TRANS 7 ROTAT 6 ROTAT , ROTAT 7 DAMPIN&

) 80+8)) 80+8)) 80+8)) *0*****E9** *0*****E9** *0*****E9** *0*****E9**

+ 80+8)) 80+8)) 80+8)) *0*****E9** *0*****E9** *0*****E9** *0*****E9**

: 80+8)) 80+8)) 80+8)) *0*****E9** *0*****E9** *0*****E9** *0*****E9**

8 80+8)) 80+8)) 80+8)) *0*****E9** *0*****E9** *0*****E9** *0*****E9**

5 80+8)) 80+8)) 80+8)) *0*****E9** *0*****E9** *0*****E9** *0*****E9**

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M#M!#% A# $N#%T$A /#$G,T

- Additional Non- Structural Mass can )e defined

M#M!#% A# $N#%T$A /#$G,T0!10 TO 0!1120 !. 3 T%ANSLAT$ON 4 . Z CONC F% " 156 L7560!30 TO 0!1180 !. 3 T%ANSLAT$ON 4 . Z N$F F% / 356 LA 7536 L! 7526

#$G#N "A%AM#T#%SSOL9# S$NG GTLANZCOSNM!#% OF MO#S 16"%$NT MA4#N

----------------------------------------MOAL AM"$NG %AT$OS---------------------------------------

MO# %AT$O MO# %AT$O MO# %AT$O MO# %AT$O MO# %AT$O MO# %AT$O

1 75767 3 75767 : 75767 ; 757:; 6 757:; 8 757:;2 757:; < 757:; = 75737 17 75737 11 75737 13 75737

1: 75737 1; 75737 16 75737

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STORE

TIME HISTORY & RESPONSE SPECTRUM

STORE TIME 'ISTOR, FORCE TRANSLATION ;FORCE-6;

*0* *0* +0* *0+ -)05 *08 )05 *04 -)0* *0< )0* *03

-*05 *02 *05 )0* *0* )0)

STORE RESPONSE SPECTRUM ELOCIT, LINEAR S

PERIOD LINEAR ;=UA>E;

DAMPIN& *0*

*04 *0+ )?* )0) )0: +0+ )08 :0* )085 :03

DAMPIN& *0*+

*0:5 *0+ *03 )0) )0* +0+ )0)5 :0* )0+ :03

DAMPIN& *0*:

*0+ *0+ *04 )0) *03 +0+ *02 :0* *02 :03

END OF RESPONSE SPECTRUM

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C%#AT# T$M# ,$STO%. & %#S"ONS# S"#CT%M

%#AT# T$M# ,$STO%. F$L# 0T,-10 F%OM T$M# S#GM#NT F$L# 0#LC#NT%O0 -TA%T T$M# 3757 #N T$M# 6:57 >%AM" COS$N# !$L 1757

%#AT# %#S"ONS# S"#CT%M $S"LAC#M#NT LOG 9S%#+#NC. LOG F$L# 0%S-10

N$TS C.CL#S S#CONS AM"$NG "#%C#NTS 757 357 ;57 857

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%#S"ONS# S"#CT%M LOA$NG 177 0 Support Acceleration-40S""O%T ACC#L#%AT$ONT%ANSLAT$ON 4 F$L# 0%S-10#N %#S"ONS# S"#CT%M LOA

%#S"ONS# S"#CT%M LOA$NG 377 0 Support Acceleration-.0S""O%T ACC#L#%AT$ONT%ANSLAT$ON . F$L# 0%S-10#N %#S"ONS# S"#CT%M LOA

%#S"ONS# S"#CT%M LOA$NG :77 0 Support Acceleration-4.0S""O%T ACC#L#%AT$ONT%ANSLAT$ON 4 75272 . 75272 F$L# 0%S-10#N %#S"ONS# S"#CT%M LOA

.NAM$C ANAL.S$S #$G#N9AL#S"#%FO%M %#S"ONS# S"#CT%M ANAL.S$S

COM"T# %#S"ONS# S"#CT%M $S"LAC#M#NTS FO%C#S -%#ACT$ONS MOAL COM!$NAT$ON C+C

FO%M M$SS$NG MASS LOA === 0Missin( Mass Load0 -F%OM %#S"ONS# S"#CT%M LOA :77 -CTOFF F%#+#NC. 115:6 AM"$NG %AT$O 7576LOA L$ST ===

 

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ST$FFN#SS ANAL.S$S

LOA L$ST ALL

C%#AT# "S#O STAT$C LOA 3777 0C+C %esults0 F%OMC+C OF LOA :77

C%#AT# LOA COM!$NAT$ON 3771 0%S %esults0 T."# %MSS"#CS 3777 157 === 157

C%#AT# LOA COM!$NAT$ON 3773 0 ?S/ @

O$NTLOA@LB@ %S %esults0 S"#CS 17 157 37 157 ;7 1573771 157

C%#AT# LOA COM!$NAT$ON 377: 0 ?S/ @O$NTLOA@LB - %S %esults0 S"#CS 17 157 37 157 ;7 1573771 -157

P!euo Static Loa! @ Com"ination of Static an D#namic Loa!

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IS)32: EART' =UA>E LOADIN&

6;D E FO%M $S1

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TRANSIENT AND RA,LEI&' ANAL,SIS

L$ST %A.L#$G, NAT%AL F%#+#NC. LOA$NG 37 :7

T%ANS$#NT LOA 67 0#LC#NT%O-40

S""O%T ACC#L#%AT$ONT%ANS 4 F$L# 0#LC#NT%O0 FACTO% 75<$NT#G%AT# F%OM 757 TO 1757 AT 7573

$N#%T$A OF O$NTS LM"#$N#%T$A OF O$NTS /#$G,T$N#%T$A OF O$NTS F%OM LOA 17 37 ALL OF

#$G#N "A%AM#T#%S

SOL9# S$NG GTLANZCOSNM!#% OF MO#S 16"%$NT MA4#N

AM"$NG %AT$O 7576 ;

.NAM$C #G%##S OF F%##OM /$T, STAT$C CON#NSAT$ON

G#N#%AT# F%OM T%ANS 4

.NAM$C ANAL.S$S MOAL

LOA L$ST ALL

COM"T# T%ANS$#NT LOAS FO%C#S %#ACT$ONS

L$ST T%ANS$#NT %#ACT$ONS O$NTS 1

L$ST T%ANS$#NT FO%C#S M#M!#%S 0!10

COM"T# T%ANS$#NT FO%C#S %#ACT$ONS T$M# 3588C%#AT# "S#OSTAT$C LOA$NG 87 0T$M# 3588 T5,0 F%OM T$M# 3588 OF LOA 67LOA$NG COM!$NAT$ON 177 0L @ %S0 COM!$N# 17 157 87 157COM!$N# 177

ST$FFN#SS ANAL.S$S

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oints 17*

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0"lum "oint #ner( Station - Seismic Analsis0

Num)er of nodes I 11=;=

Num)er of support nodes I181Num)er of elements I 31;8:

MA4$MM NM!#% OF O$NTS 11=;=MA4$MM NM!#% OF M#M!#%S 31;8:$N#%T$A OF O$NTS LM"#

> Additional mass for static loads folloKs> ----------------------------------------$N#%T$A OF O$NTS F%OM LOA 2 SAM# OF$N#%T$A OF O$NTS F%OM LOA < SAM# OF$N#%T$A OF O$NTS F%OM LOA 17 SAM# OF$N#%T$A OF O$NTS F%OM LOA 11 SAM# OF$N#%T$A OF O$NTS F%OM LOA 1; SAM# OF$N#%T$A OF O$NTS F%OM LOA 16 SAM# OF

$N#%T$A OF O$NTS F%OM LOA 18 SAM# OF$N#%T$A OF O$NTS F%OM LOA 1< SAM# OF$N#%T$A OF O$NTS F%OM LOA :77: ALL OF$N#%T$A OF O$NTS F%OM LOA :778 SAM# OF> ----------------------------------------N$TS H$"S C.CL#S S#CONS#$G#N"%O!L#M "A%AM#T#%S

SOL9# S$NG GT8;MLancosNM!#% OF MO#S :777

"%$NT MA4#N

+#%..NAM$C ANAL.S$S #$G#NSOLT$ON

> #ffectie seismic Kei(ht is

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TURINE PEDESTAL

#lements :7*8;<#lement tpe $"SL ?:B

Mem)ers 18Loadin( Cases 33$N#%T$A OF O$NTS LM"#

N$TS M HN %A$ANS$N#%T$A OF O$NTS /#$G,T

;217< T%ANSLAT$ONAL 4 3=;577 . 7577777#@77 Z 7577777#@77;2117 T%ANSLAT$ONAL 4 3=;577 . 7577777#@77 Z 7577777#@77;2111 T%ANSLAT$ONAL 4 183577 . 7577777#@77 Z 7577777#@77;2113 T%ANSLAT$ONAL 4 36=577 . 7577777#@77 Z 7577777#@77

$N#%T$A OF O$NTS MASS;217< %OTAT$ONAL 4 1=8577 . 3=7577 Z 3=7577;2117 %OTAT$ONAL 4 127577 . 372577 Z 372577;2111 %OTAT$ONAL 4 183577 . 318577 Z 33:577;2113 %OTAT$ONAL 4 387577 . 683577 Z 62:577

N$TS S#CONS#$G#N9AL# "A%AM#T#%SSOL9# S$NG GT8;MLANCZOSNM!#% OF MO#S 677"%$NT MA4

#N

+#%..NAM$C ANAL.S$S #$GNSOLT$ON

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NE6T SESSION FINITE ELEMENTSB

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&TSTRUDL Specialie Softa$e fo$ Finite

Element Anal#!i!

/ho Can se GTST%L

The !e(inners

"racticin( #n(ineers

%esearch #n(ineers

/h GTST%L for Finite #lement Analsis

Simple "ro)lem Oriented Lan(ua(e ?"OLB facilit

#tremel "oKerful Tool for Comple Linear #lastic Continuum Analsis

#tensie #lement Li)rar

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T$ianula$ Element G CST&? LST ? UTL=)? P'T? CPT

=ua$ilate$al Element! - IPL=? IP==?IPC=?PS'=?

:D element! -TRIP? IPLS IP=S? TRANS :D? %ED&E)5

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epth of Technical Features

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15 oint coordinates

35 #lement connectiit

:5 Material properties

;5 Element Loadings

Thermal

oint* Surface

#d(e

!od loadin(s

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#omposite Material $ Loading % Analysis % Results

L$ST SM FO%C#S I Sum of Forces and Moments

L$ST SM FO%C#S T$TL# 0COM"!M0 #L#M#NTS1 T7 3: !. 3 O$NTS 1 TO :2 !. :

CALCLAT# A9#%AG# ST%#SS AT TO" FO%#L#M#NT 3: 3; ;2 ;<

CALCLAT# A9#%AG# "%$N ST%#SS AT TO"FO% #L#M#NT 3: 3; ;2 ;<

CALCLAT# A9#%AG# ST%#SS AN #N9#LO" AT TO" FO% #L#M#NT 3: 3; ;2 ;<

O$NT T#M"#%AT%# represent temperature effects on finite elements

LOA$NG 17 0T#M" LOA0

O$NT T#M"#%AT%# LOAS

:1 :; :2 G%A 4 6757 GLO!AL

:1 :; :2 C,ANG# 8757

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&EM Error Estimation ' #onvergence Study (D Elements

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LAT# %#SLTANT CT 0:0 #L#M#NTS 338 TO 3:; NO#S 1131 TO 11;7

 SM FO%C#S T$TL# 0:0 #L#M#NTS 338 TO 3:; O$NTS 1131 TO 11;7

S M#T#% J HN

T$ON OF C#NT%O$ ?%#F#% TO NOT# A!O9#B

4 I 75;677777#@71. I -756777777#@77

FO%C# $N 4 $%#CT$ON I 75

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Coolin( ToKer P F# #lements

LCLAT# A9#%AG# ST%#SS#S AT QM$L#R #L#M#NTS$ST$NG 11: 13= 1;6 181 122 1=: 37= 336 3;1 362

 MA4$MM AN M$N$MM SMMA%. OF A!O9# %#SLTS

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII  #SLT MA4$MM S%FAC# O$NT M$N$MM S%FAC# O$NT

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII    S44 -751:761:#@7: M$L# 1773 -751:867;#@7; M$L# =71   S.. -751626==#@7: M$L# 1873 -751:==1;#@7; M$L# 1671   S4. 756=;2;:#@7: M$L# 271 -75;:22=2#@7: M$L# 273

ToKer "rofile "ara)olic cure

Finite #lement Tpe S!,+8

Loadin( S/* /ind* Settlement of Support

/ t T ' # l

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/ater Tan' P #ample

Element T#pe IP=L

Loa! S%? TanH full ate$

Ee Fo$ce a! %ate$ P$e!!u$e

MODEL

NUMER OF JOINTS 1 5:NUMER OF IP=L A6IS,MMETRIC FE;S 1 +3

&LOAL A6ES

ORI&IN OF &LOAL A6ES AT JOINT 5: CENTER JOINT AT

OTTOM SURFACE OF TAN> FLOOR SLA0

6-7 A6ES IN 'ORI7ONTAL PLANE0

,-A6IS IS ERTICAL POSITIE UP

MA4$MM AN M$N$MM SMMA%. OF A!O9# %#SLTS

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII %#SLT MA4$MM O$NT M$N$MM O$NT IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII S44 -75111

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Guy To,er $ " #a.le &inite Element - Eample

#F$N# CA!L# N#T/O%H 0CN:70$NCL# #L#M#NTS #4$ST$NG 0$"C3=710 TO 0$"C3=780

 ATTAC, O$NTS 16716 67:7$N$T$AL T#NS$ON T7 357< TOL#%ANC# 757177777 O$NT 0$"C3=710

 AST L#NGT,CON9#%G#NC# %AT# 1577777#N

CA!L# ANAL.S$S ATAMA4$MM NM!#% OF #+$L$!%$M $T#%AT$ON 177MA4$MM NM!#% OF G#OM#T%. $T#%AT$ON 177

CON9#%G#NC# TOL#%ANC# #+$L 75771LOA$NG 0L0

#N

"#%FO%M CA!L# "%#ST%#SS ANAL.S$S

#lement Tpe $"CA!L#

-------------------------------------------------------------------------------------------------------------------------------------- LOA$NG - NL3 S#LF /#$G,T OF TO/#% @ #9$C# @ /$NZ --------------------------------------------------------------------------------------------------------------------------------------

%#SLTANT O$NT LOAS S""O%TS

O$NT J---------------------FO%C#---------------------JJ--------------------MOM#NT--------------------J4 FO%C# . FO%C# Z FO%C# 4 MOM#NT . MOM#NT Z MOM#NT

1 GLO!AL 753=21112 375==:687< -757

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E6AMPLESK00

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 April 38* 3718 +2

4

.

Z

'ia# $ie

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 April 38* 3718 :*

4

.

Z

;=75777 M

17=1567; M

3785671 M

Ca"le Sta#e $ie

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 April 38* 3718 :)

4

.

Z

Pet$ocemical Inu!t$ial Small uilin

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 April 38* 3718 :+4

.

Z

Silo an Suppo$tin St$uctu$e? Cina

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Steel a!e Plate Moelin an Nonlinea$ Anal#!i!

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 April 38* 3718 :8

4

.

Z

Auilia$# uilin at Nuclea$ Poe$ Plant? Sout >o$ea

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!"# $oints! %!'#% Membe(s! %"# )oa*in+ Con*itions

N,clea( an* Fossil F,el Po-e( Plant St(,ct,(es

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Oil TanHe$ Sip alla!t TanH

.#!'" $oints! /%!#' Finite Elements