Council Rock High School South Brad Kirkham Structures Council Rock High School South Northampton...
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Transcript of Council Rock High School South Brad Kirkham Structures Council Rock High School South Northampton...
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Council Rock High School South
Northampton Township
Council Rock High School South
Brad Kirkham
5th Year Capstone Project
Structures
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Presentation Background
Project Background
Existing Structural Systems
Existing Architecture
New Architecture
Structural Redesign
Construction Sequence
Conclusions
Council Rock High School South
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Project Background
Owner: Council Rock School District
Architect: Gilbert Architects
Structural Engineer: Baker, Ingram & Associates
Mechanical Engineer: Moore Engineering Company
Construction Manager: Bovis Lend Lease, Inc.
General Contractor: Bilt Rite
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Project Background
• Dates of Construction
• September 2000 – December 2002
• Construction Cost
• $40 M
• Project Size
• 360,000 ft2
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Existing Structural System
Auditorium
• 110 foot Barrel Vaulted Trusses
• 12” Precast Plank Floors
• Masonry Bearing Walls
• Acoustic Roof Deck
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Existing Structural System
Classrooms
• Masonry Bearing Walls
• 8” Precast Plank Floors
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Existing Structural System
Gymnasium
• Custom Bowstring
Trusses Spanning
108 feet
• Bar joists Spanning
Between the Trusses
• Epic Acoustic Roof Deck
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Proposal
• Modify Architecture of Gymnasium Roof
• Investigate a Space Frame
• Sequence the Construction
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
New Architecture of Gymnasium• Preserve themes of building in the base
• Use roof as the dynamic component
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Existing Systems• Lighting
• Industrial High Bay w/ Refractor
• Quartz Cylinder w/ Narrow Beam Distribution
• Mechanical
• Diffusers Located In Gym Wall
• Ceiling Fans Attached to Roof Structure
• Plumbing
• Roof Drains Adequate on East Side
8” drains
3” drains
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Changes in Roof Plumbing
• Resize Roof Drains on West Side of Roof
• Add a roof drain against wall
New Architecture of Gymnasium
Changes in Lighting System
• Slight Modifications in Attachment
Changes in Mechanical System
• Slight Modification in Ceiling Fan Attachment
• Walls were Unmodified8” drains
8” drains
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Structural Redesign
International Building Code 2000
American Society of Civil Engineers 7-98
Load & Resistance Factor Design 2nd edition
Codes & Specifications
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Structural Redesign
• Double Layered Space Frame
• 6’ Octahedron module
• Square on Offset Square Pattern
• 8” pipe shapes typical
• Mero KK node system
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Structural Redesign
Advantages
• Load Sharing
• Redundancy
• Equipment Installation
• Ease of Erection
Disadvantages
• Cost
• Geometry
• Erection Time
• Fire Protection
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Column Location
• Minimize Changes
• Use Frequent Supports
• Use Modular Spacings
Footings
• Existing – 8’ x 8’ typical
• New – 10’ x 10’ typical
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Structural Redesign
Seismic Analysis
• Modal Superposition with 3 modes based on CQC
• Drift limits achieved
• Dynamic Analysis – Frequency and Period
• Spectral Analysis – Effective Mass
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
New Roofing Material
THERMASPAN®
• Light Weight – 0.762 mm Panels
• Rebated Foam
• Adaptable Roof Profiles
• 3 in 1 Design
• Custom Colors
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Fireproofing
Concerns
• Preserve Architecture
• Keep Cost Down
• Gain Necessary Rating
The Solution
• Intumescent Fire Proofing
• 1 mm Coating
• Expands to 100 mm
However:
Fire modeling software is available for models of large spaces
- Fire Proof Key Structural Members
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Cost of Construction
Space Frame SF 19872 $715,392.00 $32,192.64 $19,872.00 $767,456.64Stressed Skin Roof SF 19872 $101,347.20 $33,583.68 $20,865.60 $155,796.48
$816,739.20 $65,776.32 $40,737.60 $923,253.12
Field Welding LF 132 $95.04 $1,326.60 $347.16 $1,768.80Steel Beam Erection LF 824 $31,724.00 $2,084.72 $947.60 $34,756.32Truss Erection LF 2024 $10,626.00 $2,368.08 $1,153.68 $14,147.76Custom Truss Ton 107 $294,250.00 $27,285.00 $12,519.00 $334,054.00Decking SF 19872 $116,648.64 $20,865.60 $1,391.04 $139,104.00
$453,343.68 $53,930.00 $16,358.48 $523,830.88
Old System
Labor CostEquipment
Cost Total CostNew System
Material CostDescription Unit Qty
Difference = $400,000
1% of Const. Cost
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction of Existing System
Space Frame SF 19872 1200 17Stressed Skin Roof SF 19872 1150 18
35
Field Welding LF 132 30 5Steel Beam Erection LF 824 1000 1Truss Erection LF 2024 2400 1Custom Truss Ton 107 11 10Decking SF 19872 1100 19
36
Time (Days)
New System
Old System
Description Unit QtyDaily
Output
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Modular Qualities
• 12’ x 42’ Erection Modules
• Ease of Erection
Considerations
• Truck Bed – 9’ x 40’
• Ship at Night
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Construction Sequence Comparison
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Conclusions
Space Frame Cost is an Issue
Constructed in Same Amount of Time
Minimal Impact on Rest of the Building
Architecture is Greatly Improved
Warrants a Proposal to the Owner
Brad KirkhamBrad Kirkham StructuresStructures
Council Rock High School South
Thanks
Council Rock School District
Baker, Ingram & Associates
AE Faculty
Classmates
Family and Friends