Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building...
Transcript of Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building...
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Samantha deVries
Advisor: Dr. Thomas Boothby
Department of Architectural Engineering
The Pennsylvania State University
Structural Option
Spring 2015
11141 Georgia Ave
Wheaton, Maryland
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Owner
General Contractor and CM
Architect
Structural Engineer
Building Overview
• 158 Feet
• 14 Stories
• 180,000 Gross Square Feet
• $44 Million
• Constructed Feb. 2013 – Aug. 2014
• Apartment Building
Project Team
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Image Source: The George Apartments online
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Site Information
• Wheaton, MD
• North of D.C.
• Close to Metro Station
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Image Source: Google Maps Image Source: Architectural Documents
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Existing Structural System
• 1960’s Concrete Office Building
• Renovation
• Concrete Layout
• Steel Addition Layout
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Image Source: Whiting Turner Progress Photos
![Page 5: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/5.jpg)
Existing Structural System
• 1960’s Concrete Office Building
• Renovation
• Concrete Layout
• Steel Addition Layout
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Image Source: Structural Building Documents
![Page 6: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/6.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Existing Structural System
• 1960’s Concrete Office Building
• Renovation
• Concrete Layout
• Steel Addition Layout
Image Source: Structural Building Documents
![Page 7: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/7.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Existing Structural System
• 1960’s Concrete Office Building
• Renovation
• Concrete Layout
• Steel Addition Layout
Image Source: Structural Building Documents
![Page 8: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/8.jpg)
Problem Statement
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Redesign the Addition
• Building Reuse and Renovation
• Lightweight Addition
• Sustainable Alternative
Image Source: Whiting Turner Progress Photos
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Melbourne, Australia
• 10-story apartment building
• Forte at Victoria Harbour
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
Image Source: Herald Sun Online
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Berlin, Germany
• 7-story apartment building
• E3 Project
Image Source: Green Building Online
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Future Potential Tall Buildings
• 14-stories under construction in Norway
• 18-stories proposed in Canada
• 34-stories proposed in Sweden
Image Source: Rendering from the Nordic Page
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Cross Laminated Timber
• Engineered Wood Panel Product
• Layers glued perpendicular (dimensional stability)
• At least 3 plies between 5/8” and 2” thick
• Max manufactured size 10’ x 40’
Image Source: archi-expo.com
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
![Page 13: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/13.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Cross Laminated Timber
• Engineered Wood Panel Product
• Layers glued perpendicular (dimensional stability)
• At least 3 plies between 5/8” and 2” thick
• Max manufactured size 10’ x 40’
Image Source: woodwindowstoday.blogspot.com
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
![Page 14: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/14.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Challenges of Using Wood in Tall Buildings
• Combustion during fire
• Connection details (steel loses strength in fire)
• Doesn’t meet code for buildings over 4-6 stories
• Historical fires in wood buildings
• Not used widely in US, therefore knowledge is limited
• Several topics require further research
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
![Page 15: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/15.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Challenges of Using Wood in Tall Buildings
• Combustion during fire
• Connection details (steel loses strength in fire)
• Doesn’t meet code for buildings over 4-6 stories
• Historical fires in wood buildings
• Not used widely in US, therefore knowledge is limited
• Several topics require further research
Benefits of Using Wood in Tall Buildings
• Renewable construction material (sustainable)
• Versatile material
• Lightweight
• Fast construction time
• Aesthetically pleasing if left exposed
• Heavy Timber burns slowly
Intro to Tall Timber
• Current Tall Wood Buildings
• Cross Laminated Timber
• Benefits and Challenges of tall wood
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Proposed Solution
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Proposed Structural System
• CLT Panels Span between Glulam Girders
• Glulam Girders span to Glulam Columns
• Concrete Shear Walls
Image Source: Sourceable Industry New & Analysis
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Flexure
CM = 1.0
CT = 1.0
Ci = 1.0
CD = 0.9 for Dead Load
CD = 1.0 for Live Load
CD = 1.6 for Fire Performance
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Flexure Deflections
Live Load Deflection Limit:
l/360
Dead and Live Deflection Limit”
l/240CM = 1.0
CT = 1.0
Ci = 1.0
CD = 0.9 for Dead Load
CD = 1.0 for Live Load
CD = 1.6 for Fire Performance
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Flexure Deflections Fire Performance (using encapsulation method)
CM = 1.0
CT = 1.0
Ci = 1.0
CD = 0.9 for Dead Load
CD = 1.0 for Live Load
CD = 1.6 for Fire Performance
Live Load Deflection Limit:
l/360
Dead and Live Deflection Limit”
l/240
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Glulam Girder Design Process Same as CLT Except:
• More sides of material lost in fire performance design
• Volume factor, Cv used in design
• Assumed to be fully braced by floor
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Glulam Girder Design Process Same as CLT Except:
• More sides of material lost in fire performance design
• Volume factor, Cv used in design
• Assumed to be fully braced by floor
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Compressive Strength Fire Performance
• 4 sides now exposed to fire
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Design Summary
• 12th Level
• 7-ply panel on 12th level
• 18” deep girder
• All other levels
• 5-ply panel
• Typical girder 15” deep
• Typical Column 12” x 10 1/2” at base
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
![Page 25: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/25.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
![Page 26: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/26.jpg)
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Gravity Redesign
• CLT Floor Panel Design
• Glulam Girder Design
• Glulam Column Design
• Design Summary
• Comparison to Existing System
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
![Page 27: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/27.jpg)
Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
• Rigid Diaphragm
• Semi-Rigid
• Flexible
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
In-Plane Deflections
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
In-Plane Deflections
• From ETABS Model
• Compare to L/360
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
In-Plane Deflections
• From ETABS Model
• Compare to L/360
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Drift Check (L/400)
• Deflection of Lateral Elements Only
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Drift Check (L/400)
• Deflection of Lateral Elements Only
• Drift due to both Diaphragm and Lateral Elements
• 1.0D + 0.5L + 0.7W for total building drift
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Drift Check (L/400)
• Deflection of Lateral Elements Only
• Drift due to both Diaphragm and Lateral Elements
• 1.0D + 0.5L + 0.7W for total building drift
• 3/8” interstory drift for non-structural elements
![Page 35: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/35.jpg)
Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Drift Check (L/400)
• Deflection of Lateral Elements Only
• Drift due to both Diaphragm and Lateral Elements
• 1.0D + 0.5L + 0.7W for total building drift
• 3/8” interstory drift for non-structural elements
![Page 36: Coppin State University...Owner General Contractor and CM Architect Structural Engineer Building Overview • 158 Feet • 14 Stories • 180,000 Gross Square Feet • $44 Million](https://reader036.fdocuments.net/reader036/viewer/2022071016/5fcf42b2ee219a1150541117/html5/thumbnails/36.jpg)
Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Overturning Moment
• Has been an issue in taller wood buildings due to low mass
• Typically design for uplift
• Original concrete portion very heavy
• OTM not an issue for this building
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Hand Spot Check of Shear Wall Design
• Checked at critical section
• Enough concrete for shear
• Minimum reinforcing provided in field of wall
• Design controlled by flexure
• Reinforcing required at endsImage Source: Structural Building Documents
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Lateral Redesign
• Lateral Introduction
• Lateral System Behavior
• Shear Wall Design
• Lateral Design Summary
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Wall Design
• 8” concrete wall w/ 2 curtains rebar
• #4’s at 18” o.c. Vertical
• #4’s at 10” o.c. Horizontal
• Typ. #6’s in the Corners and Ends
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Construction Management
• Introduction
• Schedule Analysis
• Cost Analysis
• System Comparison
Breadth Topics:
• Mechanical
• No concealed spaces, mechanical is exposed
• Chose new mechanical system
• Construction Management
• Schedule Analysis
• Cost Analysis
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Construction Management
• Introduction
• Schedule Analysis
• Cost Analysis
• System Comparison
CM Scope
• Structure in Addition
• Partitions
• Shear walls for full building
• Sound insulation
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Construction Management
• Introduction
• Schedule Analysis
• Cost Analysis
• System Comparison
Schedule Assumptions
• Pre-fabricated panels
• CLT not found in RS Means
• Construction similar to precast concrete
• Steel Addition Concrete topping needs to cure
Estimated Schedule Time:
• Steel: 9 months
• Wood: 4 months
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Construction Management
• Introduction
• Schedule Analysis
• Cost Analysis
• System Comparison
Cost Assumptions
• CLT product from Structurlam product info
• All other cost information from RS Means
• 5% estimate added to labor (not many CLT buildings in US)
• No addition for waste included due to prefabrication
• Lower General Conditions Costs in Wood
Estimated Cost:
• Steel: $2.17 Million
• Wood: $2.76 Million
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Construction Management
• Introduction
• Schedule Analysis
• Cost Analysis
• System Comparison
Schedule Estimate
• Wood Addition: 9 months
• Existing Steel Addition: 4 months
• 5 months shorter for wood addition
• Approx. 19 months to 14 months
Cost Estimate
• Wood Addition: $2.76 Million ($25 per SF)
• Existing Steel Addition: $2.17 Million ($19 per SF)
• 30% increase for wood addition
• $44 million total cost to $44.59 million (1.5% increase)
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Conclusions
• Summary
• Acknowledgements
Proposed Goals
• Redesign Addition Gravity System in Wood
• Design appropriate shear wall system for gravity design
• Investigate feasibility of wood in design for fire performance
• Investigate cost and schedule feasibility
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Conclusions
• Summary
• Acknowledgements
Proposed Goals
• Redesign Addition Gravity System in Wood
• Design appropriate shear wall system for gravity design
• Investigate feasibility of wood in design for fire performance
• Investigate cost and schedule feasibility
• Gravity system met goals for redesign
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Conclusions
• Summary
• Acknowledgements
Proposed Goals
• Redesign Addition Gravity System in Wood
• Design appropriate shear wall system for gravity design
• Investigate feasibility of wood in design for fire performance
• Investigate cost and schedule feasibility
• Gravity system met goals for redesign
• Lateral design met strength and deflection requirements
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Conclusions
• Summary
• Acknowledgements
Proposed Goals
• Redesign Addition Gravity System in Wood
• Design appropriate shear wall system for gravity design
• Investigate feasibility of wood in design for fire performance
• Investigate cost and schedule feasibility
• Gravity system met goals for redesign
• Lateral design met strength and deflection requirements
• Deflection and vibration controlled over fire performance
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Conclusions
• Summary
• Acknowledgements
Proposed Goals
• Redesign Addition Gravity System in Wood
• Design appropriate shear wall system for gravity design
• Investigate feasibility of wood in design for fire performance
• Investigate cost and schedule feasibility
• Gravity system met goals for redesign
• Lateral design met strength and deflection requirements
• Deflection and vibration controlled over fire performance
• Wood redesign 30% more expensive, but can be built in less
than half the schedule
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Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Thank you to the following people:
• The engineers at Rathgeber/Goss Associates
• My parents
• The AE faculty and my advisor Dr. Thomas Boothby
• My classmates and friends
Conclusions
• Summary
• Acknowledgements
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Thank You
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Appendix
• Appendix Contents
Gravity System
• Sound and Vibrations
• Typical Opening
• Floor Tables
• Beam Tables
• Column Tables
• Design Values
Lateral System
• Drift
• In-Place Deflections
• Shear Wall Reinforcement
• Overturning Moment
• Hand Spot Check
CM Breadth
• CLT Cost Table
• Quantity Tables
• Cost Tables
• Schedule Tables
• Schedule
Mech Breadth
• Plans
• Sample Apartment
• Hand Calculations
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Appendix
• Sound and Vibrations
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
Sound Performance
• Topping required for sound insulation
• Additional weight and height included in design
Vibration Performance
• Single spans isolated apartments from each other
• Vibrations not as important for residential
• Thicker panel required for 12th level, assembly occupation
Image Source: CLT Handbook
Image Source: CLT Handbook
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Appendix
• Typical Opening
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
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Appendix
• Floor Tables
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Appendix
• Girder Tables
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Appendix
• Girder Tables
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Appendix
• Girder Tables
Image Source: CLT Handbook
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Appendix
• Column Tables
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Appendix
• Column Tables
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Appendix
• Design Values
Image Source: CLT HandbookImage Source: CLT HandbookImage Source: Eng. Wood Assoc.
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Appendix
• Wind Drift Check
Building Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion AppendixBuilding Introduction Problem Statement Tall Timber Introduction Proposed Solution Gravity Redesign Lateral Redesign Construction Management Conclusion Appendix
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Appendix
• In-Plane Deflection
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Appendix
• Shear Wall Reinforcement
Modeling Assumptions Using ETABS:
• All bases pinned
• Only lateral system and loads modeled
• 4000 psi NW concrete
• Concrete cracking modifier of 0.7 for walls
• CLT floor modeled as orthotropic
• Only addition modeled
• Actual elevations above ground level used
• Automatic ASCE 7-05 wind loads used and verified
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Appendix
• Overturning Moment
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Appendix
• Shear Wall Hand Check at Critical Section
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Appendix
• Shear Wall Hand Check at Critical Section
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Appendix
• CM Cost Analysis
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Appendix
• CM Cost Analysis
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Appendix
• CM Cost Analysis
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Appendix
• CM Schedule Analysis
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Appendix
• CM Schedule Analysis
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Appendix
• Mechanical Plans
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Appendix
• Mechanical Sample Apartment
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Appendix
• Mechanical Calcs