Slide Template (Light Background)

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The Health Care Center Dauphin County, PA
Ken Lorenz Penn State University Architectural
Engineering Construction Management April 17, 2007
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This presentation focuses on a research topic
affecting the industry and two breadth analyses
Value Engineering and Sustainability
CMU Wall Design
PEX Tubing Design
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The Health Care Center will provide medical and
psychological care to the students of a local
boarding school

• Location
• Dauphin County, PA
• Project Size
• 80,000 SF new construction
• 20,000 SF - renovation
• Occupancy
• Health care
• Structural Steel Frame

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The integrated team will work together to deliver
and meet all expectations

• Project Team
• Owner
• CM
• Architect
• Structural Engineers
• MEP Engineers
• Project Cost
• 25 Million
• Project Duration
• August 2006 August 2008
• LEED Certified

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Research Topic
Value Engineering and Sustainability
CMU Wall Design
PEX Tubing Design
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What is Value Engineering (VE) ?
Value engineering is a systematic effort to find
less costly ways to meet the Owners needs in the
building without sacrificing the scope, quality,
aesthetics, operating costs or long term
maintenance and replacement costs.
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It is important to understand the VE process when
evaluating a buildings alternatives
Information Gathering
Analysis
Creative Brainstorming
Evaluation
Recommendation
Implementation
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It is important to understand the VE process when
evaluating a buildings alternatives
Integrated Team
Documenting and Auditing
Performance Evaluations
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Conceptual planning, design, and construction are
phases where sustainability can be greatly
influenced by value engineering
Conceptual Planning
Design
Construction
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Who should be involved in the VE process?

• Owner
• Project Team
• Architect
• Structural Engineers
• Mechanical Engineers
• Civil Engineers
• Construction Manager
• 3rd Party Consultants
• Energy Engineers
• Commissioning Agent

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The conceptual planning phase is where decisions
determine whether or not the owners requirements
can be met by an addition, renovation, or new
construction

• Site
• Energy
• Materials

Water Indoor Environment Quality Operation
Maintenance
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VE can be used to analyze sustainable
alternatives in the design of the building

• Contract
• Site
• Energy
• Materials

Water Indoor Environment Quality Operation
Maintenance
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The biggest challenge during the construction
phase is managing changes that result from change
in scope, errors omissions, unforeseen
conditions, etc.

• Site
• Energy
• Materials

Water Indoor Environment Quality Operation
Maintenance
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To conclude, it is important to understand what
VE is and what is involved in the process to
obtain the most sustainability for a building

• Be familiar and understand the information
  gathering, analyzing, creative brainstorming,
  evaluating, and implementation
• Form an integrative team, document everything,
  and set performance measures for green objectives
• Start VE early in the process and continue
  throughout focusing on where sustainability can
  be influences in the site, energy, water,
  materials, indoor environment quality, operation
  maintenance, and contracts

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Structural Breadth Topic
Value Engineering and Sustainability
CMU Wall Design
PEX Tubing Design
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The original design has a sixteen foot concrete
wall around the lower half of the south addition
CMU Wall?
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STAAD Pro was used to determine the roof loads
acting on the wall
Assuming
Load acting on the wall 1.5 kips
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Empirical design for concrete masonry walls was
used to determine the CMU size
Assuming
Empirical Design
Weight of wall 100 psf
Height (16) / Thickness (t) 18
Solve for t, t 10.667
100 psf x 16 1.6 kips
Use 12 inch CMU!!!
Total load acting on foundation 1.5 1.6 3.1
kips
3.1 kips lt 9.05 kips
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12 inch CMU wall design
Retention wall
.364 in-K/ft lt 3 in-K/ft
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Thermal resistance comparison between the
concrete and CMU design
CMU wall will allow less heat loss due to heat
transfer
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Cost comparison between both designs
A total savings of 64,718
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In conclusion, the 12 inch CMU wall is a feasible
solution
12 CMU is structurally sound
By having a higher R-value, CMU wall maintains
sustainability
CMU will save 63,718
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Mechanical Breadth Topic
Value Engineering and Sustainability
CMU Wall Design
PEX Tubing Design
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The Health Care Centers domestic water supply is
a typical branch plumbing system using copper
piping
PEX tubing design?
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PEX is cross-linked polyethylene, originally used
in residential and commercial buildings for
radiant heating
Advantages Ease of Installation Durability Cost
Effective Energy Efficient Noise Reduction
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A remote manifold system will be the new design
for the domestic water supply
Supplies water directly to fixture Less
Fittings during installation
Remote Manifold
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Remote Manifold Design
1st Floor
1st Floor
2nd Floor
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Cost comparison between both designs
Original 127,026
PEX 88,708
Total Savings 38,317
Savings 354 man hours
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In conclusion, the remote manifold system
including PEX tubing is a feasible solution
The new design will increase sustainability
The 354 man hours saved will reduce the overall
length of the project
The design change will save 38,317
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In summary, value engineering can be used to help
maintain or even gain a buildings sustainable
status
VE must be incorporated early and often in the
process to ensure the best quality of the building
Questions?