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