new virtua voorhees hospital voorhees, nj paul stewart structural option senior thesis presentation...

NEW VIRTUA VOORHEES HOSPITAL

Voorhees, NJ

Paul StewartStructural OptionSenior Thesis Presentation 2010The Pennsylvania State University

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

•Introduction• Existing Structural System• Proposal• Design of Helipad• Redesign of Lateral System• Breadth Study• Conclusion

BUILDING LOCATION

Virtua Hospital

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

•Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System• Conclusion

BUILDING DATA

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction

•Existing Structural SystemGravity System

• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System• Conclusion

EXISTING STRUCTURAL SYSTEM

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction

•Existing Structural SystemGravity System

• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System• Conclusion

EXISTING STRUCTURAL SYSTEM

Foundations - Geopiers

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction

•Existing Structural SystemLateral System

• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System• Conclusion

EXISTING STRUCTURAL SYSTEM

Moment Frames Braced Frames

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System

•Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System• Conclusion

RELOCATION OF HELIPAD

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System

•Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System• Conclusion

REDESIGN OF LATERAL SYSTEM

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Location

• Breadth Study• Redesign of Lateral System• Conclusion

HELIPAD REQUIREMENTS

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Location

• Breadth Study• Redesign of Lateral System• Conclusion

LOCATION OF HELIPAD

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE HELIPAD SLAB DESIGN

Reinforcement In Slab SectionsSection A Section B Section C Section D

Column Strip (4) #5 (8) #5 (6) #5 (11) #5

Middle Strip (4) #5 (4) #5 (6) #5 (6) #5

Flexural Beam

(4) #8 (9) #8 (3) #8 (5) #8

Shear Beam N/A (2) #4 @ 8” N/A (2) #4 @8”

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of Helipad Helipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

HELIPAD SLAB DESIGN

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

GRAVITY COLUMN REDESIGN

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

GRAVITY COLUMN REDESIGN

TRANSFER GIRDER

NEW COLUMN

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

GRAVITY COLUMN REDESIGN

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

GRAVITY COLUMN REDESIGN

COLUMN SIZESLocation Level Old Size New Size

Corner ColumnsPerimeter Columns

7 – Roof W14x61 W14x68

5 – 7 W14x74 W14x90

4 – 5 W14x74 W14x90

2 – 4 W14x74 W14x90

Ground – 2 W14x90 W14x109

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

GRAVITY COLUMN REDESIGN

COLUMN SIZESLocation Level Old Size New Size

Center Columns 7 – Roof W14x61 W14x109

5 – 7 W14x90 W14x145

4 – 5 N/A W14x145

2 – 4 N/A W14x176

Ground – 2 N/A W14x233

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal

•Design of HelipadHelipad Design

• Breadth Study• Redesign of Lateral System• Conclusion

GRAVITY COLUMN REDESIGN

COLUMN SIZESLocation Level Old Size New Size

End Column 7 – Roof W14x61 W14x90

5 – 7 W14x90 W14x132

4 – 5 N/A W14x132

2 – 4 N/A W14x145

Ground – 2 N/A W14x193

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad

•Breadth StudyAcoustical

• Redesign of Lateral System• Conclusion

ACOUSTICAL

dB’s Recorded in Patient’s RoomType of Material dB’s in Room

¼” Glass 47.3

¼” Laminated Glass and 3/16” Glass with a 2” Airspace

34.3

¼” Laminated Glass and 3/16” Glass with a 4” Airspace

30.3

(2) ¼” Laminated Glass with ½” Airspace 38.3

Example Sound LevelsType of Sounds dB’s

Helicopter 105

Average Office Noise 50

Quiet Conversation 40

Quiet Office 30

Quiet Living Room 20

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemLateral Loads

• Conclusion

LATERAL LOADS

SEISMIC DESIGN CRITERIASite Class D

Seismic Design Category

C

Occupancy Category

IV

Type of Lateral System

Ordinary Steel Concentrically Braced Frames

LATERAL BASE SHEARSNorth – South

DirectionEast – West Direction

Old Seismic Loads

1539.6 kips 1319.8 kips

New Seismic Loads

1314.1 kips 1314.1 kips

Wind Loads 1357.9 kips 1376.8 kips

Controlling Load

Wind Wind

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemRAM Model

• Conclusion

RAM MODEL

Applied Lateral Load Cases:• Seismic• Wind Case 1 – 4

Applied Load Combinations:• 1.4D• 1.2D + 1.6L + .5(Lr or S)• 1.2D + 1.6(Lr or S) + (L or 0.8W)• 1.2D + 1.6W + L + 0.5(Lr or S)• 1.2D + 1.0E + L + 0.2S• 0.9D + 1.6W • 0.9D + 1.0E

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemBraced Frame Design

• Conclusion

LOCATION OF BRACES

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemBraced Frame Design

• Conclusion

TYPICAL BRACES

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemBraced Frame Design

• Conclusion

INTERACTION WITH THE ARCHITECTURE

• Braces do not interfere with rooms or hallways

• Braces are visible at the interior courtyards

Δ

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemLateral Calculations

• Conclusion

DRIFT

Max Wind Drift Max Seismic DriftΔ North – South:

Δ = 2.33”

H/400 = 4.2”

East – West:

Δ = 1.31”

H/400 = 4.2”

Δ Δ North – South:

Δ = 2.93”

0.010*H = 16.8”

East – West: Δ = 4.16”

0.010*H = 16.8”

Δ = Cd * δ I

ExistingNorth – South:

Δ = 0.83”

ExistingEast – West:

Δ = 0.13”

ExistingNorth – South:

Δ = 0.25”

ExistingEast – West:

Δ = 0.35”

Δ = Cd * δ I

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study

•Redesign of Lateral SystemLateral Calculations

• Conclusion

CENTER OF MASS/RIGIDITY

Differences in Center of Mass and Center of Rigidity

Level Existing N-S New N-S Existing E-W New E-W

9 10.4’ 27’ 3.1’ 2.2’

8 4.3 68.6’ 0.6’ 1.6’

7 20.6’ 3.9’ 0.5’ 1.6’

6 4.6’ 20.6’ 0.2’ 2.2’

5 60.0’ 7.9’ 18.8’ 15.0’

4 51.3’ 11.1’ 25.9’ 22.8’

3 21.2’ 2.3’ 23.7’ 28.1’

2 25’ 1.5’ 14.9’ 25.4’

1 1.2’ 11.3’ 30.0’ 47.8’

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System

•Conclusion

CONCLUSIONS

• Helipad will be located in Zone 5• The Pad will be designed as a two – way slab• New columns will be introduced along column line

Ma• The façade of the building will be changed• Lateral system will eliminate of moment frames

• Braced frames will not interfere with the architecture

• Drift values will be larger, but still acceptable• Differences in COM and COR are generally the

same

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System

•Conclusion

ACKNOWLEDGEMENTS

Thank you to the following people for their help throughout the year:

• Virtua Health• Turner Company• Penn State Architectural Engineering Faculty and Students• Family and Friends

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE

• Introduction• Existing Structural System• Proposal• Design of Helipad• Breadth Study• Redesign of Lateral System

•Conclusion

QUESTIONS? COMMENTS?

Questions?

Paul Stewart 4/12/2010Structural Option

PRESENTATION OUTLINE FOUNDATION REDESIGN