Presentation to GT STRUDL USER GROUP MEETING June 14th, 2012 Feifei Lu, PE Structural Engineer URS...

Presentation to

GT STRUDL USER GROUP MEETING

June 14th, 2012

Feifei Lu, PEStructural Engineer

URS Corporation

Nonlinear Analysis / Nonlinear Dynamic Analysis of Module Lifting with Wind Load


Copyright © 2012 URS CONFIDENTIAL – This document is proprietary and competitively sensitive. Any disclosure, copying, or use of it is strictly prohibited. 2

Outline

• Introduction of Modularization Design

• Lifting Point

• Applying Wind Load to Module

• Analysis & Results

– Hand Calculation

– Nonlinear Analysis

– Nonlinear Dynamic Analysis

• Remaining problems

• Conclusion

• Q&A


Copyright © 2012 URS CONFIDENTIAL – This document is proprietary and competitively sensitive. Any disclosure, copying, or use of it is strictly prohibited.

Introduction of Modularization Design

3




Shaw- WEC AP1000 Sanmen Unit #1-CA01 Module Lifting at Daylight

4

Shaw- WEC AP1000 Sanmen Unit #1-CA01 Module Lifting Start




5

Shaw- WEC AP1000 Sanmen Unit #1-CA01 Module Lifting in Air Shaw- WEC AP1000 Sanmen Unit #1-CA01 Module Lifting in Air




Benefits of modularization design:

• Significant decrease in construction time

• Ease of construction

• Easy access in tight spaces

• Better quality

6



Lifting Point

7



Lifting Point

8

Cable Element

Lifting Point

Weak Spring Restrain to Prevent Structural Instability

Modeling Method



Lifting Point

Center of Gravity (C.G.)*****************************************************

{ 3362} > LIST DYNAMIC MASS SUMMARY

1

****************************

*RESULTS OF LATEST ANALYSES*

****************************

PROBLEM - TITLE - NONE GIVEN

ACTIVE UNITS FEET KIP CYC DEGF SEC

/--------/----------------/----------------/----------------/----------------/----------------/----------------/

GLOBAL CENTER OF MASS Mass Moment of Inertia about

AXIS COORDINATE TOTAL MASS TOTAL WEIGHT X Axis Y Axis Z Axis

/--------/----------------/----------------/----------------/----------------/----------------/----------------/

X 71.11316 80.64080 2594.541 0.0000000E+00 43115.89 25090.97

Y 95.67557 80.64080 2594.541 43115.89 0.0000000E+00 15694.28

Z 39.91543 80.64080 2594.541 25090.97 15694.28 0.0000000E+00

/--------/----------------/----------------/----------------/----------------/----------------/----------------/

9

Center of Gravity



Lifting Point

10

XXF1

X 1.681E+00Y -1.047E+00Z -2.358E+00

XXB1020

X 1.816E+00Y -1.056E+00Z -1.284E+00

XXB1022

X 2.632E+00Y -1.102E+00Z -5.357E-01

XXB1023

X 2.601E+00Y -1.106E+00Z -2.311E-01

XXJ1610546

X -5.895E-01Y 5.274E-01Z -2.204E-01

XXJ1610540

X -5.798E-01Y 3.307E-01Z -1.582E+00

XXJ1610733

X -7.148E-01Y -7.036E-02Z -2.351E+00

XXJ1610739

X -7.239E-01Y 5.031E-01Z -1.273E+00

Displacements at JointsLoad 200INCH

Lifting point aligns with Center of Gravity:

Top : X: -0.724” Y: 0.503”

Bottom : X: 2.632” Y: 1.102”



Lifting Point

11

XXJ1610733

X -1.879E-01Y -4.436E-01Z -1.310E+00

XXJ1610739

X -1.970E-01Y 1.445E-01Z -1.231E+00

XXJ1610540

X -3.131E-02Y -4.547E-02Z -1.605E+00

XXJ1610546

X -4.095E-02Y 1.693E-01Z -1.239E+00

XXB1023

X 8.075E-01Y 1.338E-01Z -1.249E+00

XXB1022

X 8.294E-01Y 1.371E-01Z -1.264E+00 XX

B1021X 3.491E-02Y 1.826E-01Z -1.255E+00 XX

B1020

X -6.524E-03Y 1.860E-01Z -1.242E+00

XXF1

X -1.659E-02Y 8.614E-02Z -1.317E+00


Lifting point:

Lift at X:71.07’; Y:95.68’

Top : X: -0.197” Y: 0.144”

Bottom : X: -0.829” Y: -0.137”



Lifting Point

12

XXJ1610733

X 3.019E+01Y 1.564E+01Z 8.665E-01

XX

J1610739

X 3.017E+01Y -2.592E+01Z 5.635E+00

XXF1

X 4.093E+01Y 2.754E+01Z 8.552E-01

XXB1020 X 4.129E+01

Y -1.369E+01Z 5.591E+00

XXB1023

X -2.360E+01Y -1.183E+01

Z -3.203E+00

XXJ1610546

X -3.499E+01Y -2.620E+01

Z -3.161E+00

XX

J1610540

X -3.497E+01Y 1.573E+01Z -8.045E+00

Displacements at JointsLoad 200INCH Offset Lifting point:

Lift at X:71.26’; Y:95.85’

Top : X: 30.17” Y: -25.92”

Bottom : X: 40.93” Y: 27.54”



Lifting Point

13

Offset Lifting point:

Lift at X:71.26’; Y:95.44’

Top : X: -48.38” Y: 37.15”

Bottom : X: -35.02” Y: -44.48”

XXJ1610733

X -4.837E+01Y -2.004E+01Z -1.231E+01

XX

J1610739

X -4.838E+01Y 3.715E+01Z -6.438E+00

XXF1 X -3.502E+01

Y -4.448E+01Z -1.233E+01

XXB1020 X -3.473E+01

Y 1.101E+01Z -6.507E+00

XXB1023

X 5.364E+01Y 1.453E+01

Z 9.457E+00

XXJ1610546

X 4.029E+01Y 3.662E+01Z 9.532E+00

XX

J1610540X 4.030E+01Y -2.003E+01Z 3.752E+00




Lifting Point

14

XX J1610733

X 4.478E+01Y 1.864E+01Z 7.690E+00

XXJ1610739

X 4.476E+01Y -3.505E+01Z 3.098E+00

XX

J1610540

X -3.935E+01Y 1.866E+01

Z -6.607E+00

XX

J1610546X -3.936E+01Y -3.553E+01

Z -1.109E+01

XXF1

X 3.476E+01Y 3.763E+01Z 7.677E+00

XXB1020

X 3.378E+01Y -1.541E+01Z 3.032E+00

XXB1023

X -5.006E+01Y -1.227E+01Z -1.115E+01


Offset Lifting point:

Lift at X:70.85’; Y:95.85’

Top : X: -44.76” Y: 35.05”

Bottom : X: 34.76” Y: 37.63”



Lifting Point

15

XX J1610733

X -4.082E+01Y -1.872E+01Z -7.148E+00

XXJ1610739

X -4.083E+01Y 3.584E+01Z -1.117E+01

XXF1

X -4.952E+01Y -4.086E+01Z -7.164E+00

XXB1020

X -5.042E+01Y 1.199E+01Z -1.123E+01

XXB1023

X 3.397E+01Y 1.517E+01Z 3.340E+00

XXJ1610546

X 4.361E+01Y 3.536E+01Z 3.408E+00

XX

J1610540X 4.362E+01Y -1.871E+01Z 7.416E+00

Displacements at JointsLoad 200INCH Offset Lifting point:

Lift at X:70.85’; Y:95.50’

Top : X: -48.38” Y: 37.15”

Bottom : X: -35.02” Y: -44.48”



Lifting Point

16

Lifting Point (ft) Distance from Lifting Point (in) Deformation (in)

X Y X YTop Bottom

X Y X Y

Center of Gravity 71.11 95.67 8/16 - 2/16 0.724 0.503 2.632 1.102

Lifting Point 71.07 95.68 0 0 -0.197 0.144 -0.829 -0.137

Offset Point 1 71.26 95.85 2 4/16 2 1/16 30.17 -25.92 40.93 27.54

Offset Point 2 71.26 95.44 2 4/16 -2 14/16 -48.38 37.15 -35.02 44.48

Offset Point 3 70.85 95.85 -2 10/16 2 1/16 -44.76 35.05 34.76 37.63

Offset Point 4 70.85 95.5 -2 10/16 -2 3/16 -48.38 37.15 -35.02 -44.48

Lifting Point Deformation Summary Table



Applying Wind Load to Module

17




Wind speed definition:

•Light & variable. = 0-5 mph.

•Breezy = 15-25 mph.

•Windy = 20-30mph.

•Very Windy = 30-40 mph.

•Strong = 40-62 mph.

•Gale Force = 62-74 mph.

•Hurricane = 74+ mph.

18

Design Wind Speed

Wind Speed Net Design Wind Pressure

40 mph 4 psf

30 mph 2 psf




Calculate Exposed Steel Area:

{ 3349} > PRINT MEMBER LENGTH MEMBERS EXISTING

{ 3350} > PRINT MEMBER INCIDENCES MEMBERS EXISTING

{ 3351} > PRINT MEMBER PROPERTIES MEMBERS EXISTING

19




Calculate Joint Load:

20

Member Start EndLength Depth Wind

Pressure Distribution

Load Joint Load

(ft) (ft) (psf) (lbf/ft) (lbf)BM100123 F1021 B100170 4.833 2.367 4.000 9.468 22.879BM100124 B100170 J1020002 2.417 2.367 4.000 9.468 11.442BM100125 J1020002 B100171 2.416 2.367 4.000 9.468 11.437BM100126 B100171 F1020 4.834 2.367 4.000 9.468 22.884BM100127 F1023 B100123 4.800 2.367 4.000 9.468 22.723BM100128 B100123 J1020005 2.450 2.367 4.000 9.468 11.598BM100129 J1020005 B100120 2.416 2.367 4.000 9.468 11.437BM100130 B100120 F1022 4.834 2.367 4.000 9.468 22.884BM100131 F2004 B100106 4.800 1.150 4.000 4.600 11.040BM100132 B100106 B100110 4.866 1.150 4.000 4.600 11.192BM100133 B100110 F2003 4.834 1.150 4.000 4.600 11.118BM100134 F2002 B100156 4.833 1.017 4.000 4.068 9.830BM100135 B100156 B100162 4.833 1.017 4.000 4.068 9.830BM100136 B100162 F2001 4.834 1.017 4.000 4.068 9.832BM100146 B100105 B100109 4.800 1.017 4.000 4.068 9.763BM100147 B100109 B100113 4.866 1.017 4.000 4.068 9.897BM100148 B100113 B100102 4.834 1.017 4.000 4.068 9.832BM100149 B100102 B100147 6.000 1.017 4.000 4.068 12.204BM100150 B100147 B100148 6.000 1.017 4.000 4.068 12.204




Time History Wind Pressure for Dynamic Analysis

21





22



Analysis & Results

23



Analysis & ResultsHand Calculation

24

Wind Load

Dead Load

C. G.

82 ft

T

Wind Load

Dead Load

C. G.



Analysis & ResultsHand Calculation (cont’d)

25

X-direction (4psf) Y-direction (4psf) X-direction (2psf) Y-direction (2psf)

Wind Load (kips) 15.32 15.32 20.62 20.62 7.66 7.66 10.31 10.31

Gravity Load (kips) 2594 2594 2594 2594 2594 2594 2594 2594

(degree) 0.339 0.339 0.456 0.456 0.169 0.169 0.228 0.228

Location Top Bottom Top Bottom Top Bottom Top Bottom

Length (ft) 55.34 133.35 58.51 134.70 55.34 133.35 58.51 134.70

Displacement (in) 3.92 9.45 5.58 12.85 1.96 4.73 2.79 6.42



Analysis & ResultsNonlinear Analysis

26

X- Direction Wind Load

4 psf

Top : X: 16.12” Y: -8.92”

Bottom : X: 22.45” Y: -9.28”

XXJ1610733

X 1.613E+01Y 6.905E+00Z -2.537E+00

XXJ1610739

X 1.612E+01Y -8.919E+00Z 1.607E-01

XXF1

X 2.214E+01Y 7.084E+00Z -2.544E+00

XXB1020

X 2.245E+01Y -9.279E+00Z 1.435E-01

XXB1023

X -2.214E+00Y -8.914E+00

Z 2.475E-01

XXJ1610546

X -9.080E+00Y -8.963E+00Z 2.643E-01

XX

J1610540

X -9.070E+00Y 7.301E+00Z -2.669E+00




Analysis & ResultsNonlinear Analysis (cont’d)

27

XXJ1610546

X 2.664E+01Y 2.436E+01Z -4.231E+00

XX

J1610540

X 2.665E+01Y -1.082E+01

Z -4.810E+00

XX

J1610733X -2.763E+01Y -1.120E+01Z 1.824E+00

XX

J1610739

X -2.764E+01Y 2.465E+01Z 1.959E+00

XXB1020 X -2.743E+01

Y 3.289E+01Z 1.919E+00

XXF1 X -2.728E+01

Y -2.051E+00Z 1.816E+00

XXB1023

X 2.787E+01Y 3.474E+01Z -4.270E+00


Y- Direction Wind Load

4 psf

Top : X: -27.64” Y: 24.65”

Bottom : X:-27.43” Y: 32.89”




28

XXJ1610733

X 7.463E+00Y 2.936E+00Z -1.923E+00

XX

J1610739

X 7.454E+00Y -4.028E+00Z -5.400E-01

XX

J1610540

X -4.050E+00Y 3.334E+00

Z -2.134E+00

XX

J1610546X -4.060E+00Y -4.018E+00Z -4.901E-01

XX

B1023X -2.073E-01

Y -4.085E+00Z -5.020E-01 XX

B1022

X 3.014E+00Y -4.077E+00Z -5.224E-01 XX

B1020 X 1.070E+01Y -4.120E+00Z -5.523E-01

XXF1

X 1.054E+01Y 3.322E+00Z -1.929E+00


X- Direction Wind Load

2 psf

Top : X: 7.45” Y: -4.03”

Bottom : X: 10.54” Y: -4.12”




29

XX J1610733

X -1.363E+01Y -5.654E+00Z 3.026E-01

XXJ1610739

X -1.364E+01Y 1.218E+01Z 3.877E-01

XX

J1610540

X 1.306E+01Y -5.263E+00

Z -3.223E+00

XXJ1610546

X 1.305E+01Y 1.213E+01Z -2.777E+00

XX

B1023X 1.405E+01Y 1.711E+01

Z -2.795E+00XXB1022

X 6.751E+00Y 1.714E+01Z -1.891E+00

XXB1020 X -1.346E+01

Y 1.671E+01Z 3.698E-01

XXF1

X -1.343E+01Y -6.015E-01Z 2.960E-01

Displacements at JointsLoad 520INCH Y- Direction Wind Load

2 psf

Top : X: -13.64” Y: 12.18”

Bottom : X: -13.46” Y: 16.71”


Copyright © 2012 URS CONFIDENTIAL – This document is proprietary and competitively sensitive. Any disclosure, copying, or use of it is strictly prohibited. 30


Nonlinear Analysis Summary Table

Deformation (in)Top Bottom

X Y X Y

X-Direction4 psf 16.12 -8.92 22.45 -9.28

2 psf 7.45 -4.03 10.54 -4.12

Y-Direction4 psf -27.64 24.65 -27.43 32.89

2 psf -13.64 12.18 -13.46 16.71



Analysis & ResultsNonlinear Dynamic Analysis


31



Analysis & ResultsNonlinear Dynamic Analysis (cont’d)

32

Top Joint

Bottom Joint




33

X-direction Wind (4 psf) Top Joint Displacement

Displacement vs Time, Load windns5, Joint J1610739

Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

1

2

3

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300

-0.1

-0.2

-0.3

0.1

0.2

0.3

Dis

plac

emen

t Y (

IN)




34

X-direction Wind (4 psf) Bottom Joint Displacement

Displacement vs Time, Load windns5, Joint B1020

Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

-4

1

2

3

4

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

-0.7

-0.8

-0.9

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Dis

plac

emen

t Y

(IN

)




35

Y-direction Wind (4 psf) Top Joint Displacement

Displacement vs Time, Load windw5, Joint J1610739

Time (SEC)

0 50 100 150 200 250 300

-1

-2

1

2

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

1

2

3

Dis

plac

emen

t Y (

IN)




36

Y-direction Wind (4 psf) Bottom Joint Displacement

Displacement vs Time, Load windw5, Joint B1020

Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

1

2

3

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

-4

1

2

3

4

Dis

pla

cem

ent

Y (

IN)





37




38

X-direction Wind (4 psf) Top Joint Displacement


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

1

2

3

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

-0.7

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Dis

plac

emen

t Y

(IN

)




39

X-direction Wind (4 psf) Bottom Joint Displacement


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

-4

-5

1

2

3

4

5

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300

-1

-2

1

2

Dis

plac

emen

t Y (

IN)




40

Y-direction Wind (4 psf) Top Joint Displacement


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

-4

1

2

3

4

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

1

2

3

Dis

plac

emen

t Y (

IN)




41

Y-direction Wind (4 psf) Bottom Joint Displacement


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

-4

1

2

3

4

Dis

plac

emen

t X (

IN)


Time (SEC)

0 50 100 150 200 250 300

-1

-2

-3

-4

-5

-6

1

2

3

4

5

6

Dis

pla

cem

ent

Y (

IN)



Remaining Problems

42



Remaining Problems

• Instability problem during analysis

• Difficulty to obtain wind time history data

• Computer limitation

• Wind load uncertainty

43



Conclusion

44



Conclusion

• Structure is sensitive to lifting point

• Hand calculation is not able to account for rotational deformation

• Nonlinear analysis provides conservative results

• Nonlinear dynamic analysis provides more realistic results

• 30 MPH is a better criteria for this particular lifting procedure

45



Q&A

46

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Presentation to GT STRUDL USER GROUP MEETING June 14th, 2012 Feifei Lu, PE Structural Engineer URS...

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