HD WOODSON SENIOR HIGH SCHOOL WASHINGTON, DC PENN STATE ARCHITECTURAL ENGINEERING THESIS
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Transcript of HD WOODSON SENIOR HIGH SCHOOL WASHINGTON, DC PENN STATE ARCHITECTURAL ENGINEERING THESIS
HD WOODSON SENIOR HIGH HD WOODSON SENIOR HIGH SCHOOLSCHOOL
WASHINGTON, DCWASHINGTON, DC
PENN STATE ARCHITECTURAL ENGINEERING PENN STATE ARCHITECTURAL ENGINEERING THESIS THESIS
NEAL DIEHL | CONSTRUCTION PROJECT MANAGEMENTNEAL DIEHL | CONSTRUCTION PROJECT MANAGEMENTDR. DAVID RILEY - ADVISORDR. DAVID RILEY - ADVISOR
GREEN ROOFGREYWATER
SYSTEMCURRENT DESIGN
ALTERNATE OPTIONS
CONCLUSION
CURRENT DESIGN
PROPOSED SPLICE
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
INTRODUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
STRUCTURAL BREADTH
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
PROJECT BACKGROUND
HD Woodson Senior HS will replace the former facility with a technology focused building ,utilizing the STEM design concept
S
T
E
M
cience
echnology
ngineering
ath
SMART Boards
ALTERNATIVE STEEL TRUSS CONSTRUCTION
DC Public Schools, Office of Public Education Facilities Modernization first totally new building
230,000 GSF900 Students9th through 12th Grade$ 89 MillionLEED Gold
BENEFITS
GREEN ROOFGREYWATER
SYSTEMCURRENT DESIGN
ALTERNATE OPTIONS
CONCLUSION
CURRENT DESIGN
PROPOSED SPLICE
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
INTRODUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
BENEFITS
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
STRUCTURAL BREADTH
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
PROJECT BACKGROUND
HD Woodson Senior HS will replace the former facility with a technology focused building ,utilizing the STEM design concept
ALTERNATIVE STEEL TRUSS CONSTRUCTION
GREEN ROOFGREYWATER
SYSTEM
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
OPTIMIZING VALUE ENGINEERING
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Overlooking “LEED” design elements during the Value Engineering Process discounts valuable opportunities
LEED SUSTAINABILITY
GREEN ROOFGREYWATER
SYSTEM
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
OPTIMIZING VALUE ENGINEERING
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Overlooking “LEED” design elements during the Value Engineering Process discounts valuable opportunities
Constructability
VS
14 LAYERS 5 LAYERS
CostGreen Roof Cost Estimate Reflective EPDM Roofing
$ per Square Foot $ 28.07 $ 4.50 $ per Square Foot Square Feet 45,502 45,502 Square Feet TOTAL $ 1,277,240 $ 204,760 TOTAL Potential Savings 1,072,480
$ 1,277,240
$ 204,760
Potential Estimated Savings $ 1,072,480
GREEN ROOFGREYWATER
SYSTEM
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
OPTIMIZING VALUE ENGINEERING
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Overlooking “LEED” design elements during the Value Engineering Process discounts valuable opportunities
Constructability
VS
14 LAYERS 5 LAYERS
CostGreen Roof Cost Estimate Reflective EPDM Roofing
$ per Square Foot $ 28.07 $ 4.50 $ per Square Foot Square Feet 45,502 45,502 Square Feet TOTAL $ 1,277,240 $ 204,760 TOTAL Potential Savings 1,072,480
$ 1,277,240
$ 204,760
Potential Estimated Savings $ 1,072,480
GREEN ROOFGREYWATER
SYSTEM
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
OPTIMIZING VALUE ENGINEERING
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Overlooking “LEED” design elements during the Value Engineering Process discounts valuable opportunities
Greywater system expansion based on former Green Roof Capacity and Storm Event Calculations
Proposed additional 20,000 gallon underground tank to maintain storm water capacity
Storm Water Storage Capacity RequirementsStorm Type CF Gallons
2 Year Event 3,540 26,481
15 Year Event 4,656 34,829
Green Roof Capacity and AreasSF Capacity
Green Roof 45,502 6,006 cf (44,928 g)
Controlled by GR 77,150
CF Gallons
1,337 10,000
2,674 20,000
4,011 30,000
5,348 40,000
6,685 50,000
8,022 60,000
20,000 20,000 10 K
GREEN ROOFGREYWATER
SYSTEM
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
OPTIMIZING VALUE ENGINEERING
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Overlooking “LEED” design elements during the Value Engineering Process discounts valuable opportunities
Greywater system expansion based on former Green Roof Capacity and Storm Event Calculations
Proposed additional 20,000 gallon underground tank to maintain storm water capacity
Storm Water Storage Capacity RequirementsStorm Type CF Gallons
2 Year Event 3,540 26,481
15 Year Event 4,656 34,829
Green Roof Capacity and AreasSF Capacity
Green Roof 45,502 6,006 cf (44,928 g)
Controlled by GR 77,150
CF Gallons
1,337 10,000
2,674 20,000
4,011 30,000
5,348 40,000
6,685 50,000
8,022 60,000
20,000 20,000 10 K
GREEN ROOFGREYWATER
SYSTEM
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
OPTIMIZING VALUE ENGINEERING
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Overlooking “LEED” design elements during the Value Engineering Process discounts valuable opportunities
Value Engineering provides the economic input to the Sustainability Triple Bottom Line
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
STRUCTURAL BREADTH
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Removing the green roof loads provide an opportunity to reduce the size of certain structural steel members
STRUCTURAL BREADTH
Design Loads and ability to downsize considered for a Beam and Girder with removed Green Roof
Cost savings and sustainable attributes of reducing structural steel
Loading with Green Roof
Design Dead Load 30 PSF
Green Roof Load 30 PSF
Roof Live Load 21 PSF
Beam B Reduced from W 24 x 55 to W 21 x 44
Girder A Reduced from W 24 x 68 to W 21 x 55
Beam B Calculations
Factored Load
105.6 PSF
Load 1.003 KLF
Bending Moment
288.9 kip-ft.
Allowed (AISC)
503 (57%)
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
STRUCTURAL BREADTH
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Removing the green roof loads provide an opportunity to reduce the size of certain structural steel members
STRUCTURAL BREADTH
Design Loads and ability to downsize considered for a Beam and Girder with removed Green Roof
Reductions of steel roof members under the 45,000 sf of roof area would be possible
Loading with Green Roof
Design Deal Load 30 PSF
Green Roof Load 30 PSF
Roof Live Load 21 PSF
Beam B Reduced from W 24 x 55 to W 21 x 44
Girder A Reduced from W 24 x 68 to W 21 x 55
Beam B Reduced Load Calculations
Factored Load 69.6 PSF
Load 0.661 KLF
Bending Moment
190.4 kip-ft.
Bending Moment
(maintain 57%)299 kip-ft.
W 21 x 44 (AISC) 358 kip- ft.
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
STRUCTURAL BREADTH
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Removing the green roof loads provide an opportunity to reduce the size of certain structural steel members
STRUCTURAL BREADTH
Design Loads and ability to downsize considered for a Beam and Girder with removed Green Roof
Reductions of steel roof members under the 45,000 sf of roof area would be possible
Loading with Green Roof
Design Deal Load 30 PSF
Green Roof Load 30 PSF
Roof Live Load 21 PSF
Beam B Reduced from W 24 x 55 to W 21 x 44
Girder A Reduced from W 24 x 68 to W 21 x 55
Beam B Reduced Load Calculations
Factored Load 69.6 PSF
Load 0.661 KLF
Bending Moment
190.4 kip-ft.
Bending Moment
(maintain 57%)299 kip-ft.
W 21 x 44 (AISC) 358 kip- ft.
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE EXTERIOR WALL ASSEMBLY
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Originally designed exterior walls were oversized masonry panels or bricks with CMU back up
CURRENT DESIGN
ALTERNATE OPTIONS
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
Exterior Wall Assembly Options
Cost/SFEstimate
d Cost
Cost Differenc
e
Duration (days)
CMU Backup
$ 12.94 $ 802,927 - 90
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE EXTERIOR WALL ASSEMBLY
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Metal Stud Crete system accelerates the schedule, provides increased efficiency at higher assembly cost
CURRENT DESIGN
ALTERNATE OPTIONS
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
Exterior Wall Assembly Options
Cost/SF
Estimated Cost
Cost Differenc
e
Duration (days)
CMU Backup $ 12.94 $ 802,927 - 90
Metal Stud Crete
$ 34.40 $ 2,134,520 $ 1,331,593 17
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE EXTERIOR WALL ASSEMBLY
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Site built Metal Stud Walls provide slight schedule acceleration and other advantages
CURRENT DESIGN
ALTERNATE OPTIONS
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
Exterior Wall Assembly Options
Cost/SF
Estimated Cost
Cost Differenc
e
Duration (days)
CMU Backup $ 12.94 $ 802,927 - 90
Metal Stud Crete
$ 34.40 $ 2,134,520 $ 1,331,593 17
Metal Stud Walls
$ 28.00 $ 1.737,400 $ 934,473 60
-Flexibility for changes-Little to no lead time
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE EXTERIOR WALL ASSEMBLY
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Metal Stud Crete assembly provides over two month acceleration and positive impact on other systems
CURRENT DESIGN
ALTERNATE OPTIONS
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
Exterior Wall Assembly Options
Cost/SF
Estimated Cost
Cost Differenc
e
Duration (days)
CMU Backup $ 12.94 $ 802,927 - 90
Metal Stud Crete
$ 34.40 $ 2,134,520 $ 1,331,593 17
Metal Stud Walls
$ 28.00 $ 1.737,400 $ 934,473 60
Electrical Rough in CMU vs. Metal stud walls
CMU Walls (EMT + Wire)
Studs (MC Cable)
10’ RI, box and support assembly
$ 16.50 $ 8.00
Labor Hours 1.5 1
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Trusses spanning gymnasium were fabricated in Delmar, DE and transported to the site in one piece
CURRENT DESIGN
PROPOSED SPLICE
ALTERNATIVE STEEL TRUSS CONSTRUCTION
BENEFITS -Over 100 feet
-Supporting Floor and Roof Loads
- Requires Permitting in each state travelled
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Trusses spanning gymnasium were fabricated in Delmar, DE and transported to the site in one piece
CURRENT DESIGN
PROPOSED SPLICE
BENEFITS
ALTERNATIVE STEEL TRUSS CONSTRUCTION
-Over 100 feet
-Supporting Floor and Roof Loads
- Requires Permitting in each state travelled
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Two options were considered when looking at possible splice locations
CURRENT DESIGN
PROPOSED SPLICE
ALTERNATIVE STEEL TRUSS CONSTRUCTION
BENEFITS
Welded flanges – Moment resistance in Webs
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Two options were considered when looking at possible splice locations
CURRENT DESIGN
PROPOSED SPLICE
ALTERNATIVE STEEL TRUSS CONSTRUCTION
BENEFITS
Welded flanges – Moment resistance in Webs
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Investigating the possibility of splicing the truss many advantages and disadvantages were found
CURRENT DESIGN
PROPOSED SPLICE
BENEFITS
ALTERNATIVE STEEL TRUSS CONSTRUCTION
-Reduce Shipping by $50 to $75 per ton per mile
- Fewer Permits and escort vehicles required (length requirements)
- Increased duration of Steel Erection
- Increased risk for Residual Stresses
- Transport still limited by height
- Removing a process from controlled Environment
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE STEEL TRUSS CONSTRUCTION
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
Investigating the possibility of splicing the truss many advantages and disadvantages were found
CURRENT DESIGN
PROPOSED SPLICE
BENEFITS
ALTERNATIVE STEEL TRUSS CONSTRUCTION
-Reduce Shipping by $50 to $75 per ton per mile
- Fewer Permits and escort vehicles required (length requirements)
- Increased duration of Steel Erection
- Increased risk for Residual Stresses
- Transport still limited by height
- Removing a process from controlled Environment
GREEN ROOFGREYWATER
SYSTEMCURRENT DESIGN
ALTERNATE OPTIONS
CONCLUSION
CURRENT DESIGN
PROPOSED SPLICE
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
HD WOODSON SENIOR HIGH SCHOOLNEAL DIEHL │CONSTRUCTION PROJECT MANAGEMENT
ALTERNATIVE EXTERIOR WALL ASSEMBLY
BENEFITS & COSTS
STRUCTURAL BREADTH
OPTIMIZE VALUE ENGINEERING
LEED- RISK TO VE ?
PROJECT BACKGROUND
Questions ?
ALTERNATIVE STEEL TRUSS CONSTRUCTION
BENEFITS