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Alcoa Business Services Center. Pittsburgh, Pennsylvania. Efficiency Considerations for Modern Design. Geoffrey E. Measel – Structural Option 2004 Senior Thesis. Introduction Thesis research. Structural Depth Alternate Floor Systems Alternate Foundation Systems Core Framing For UFADS

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alcoa business services center

AlcoaBusiness Services Center

Pittsburgh, Pennsylvania

Efficiency Considerations for Modern Design

Geoffrey E. Measel – Structural Option 2004 Senior Thesis

introduction thesis research
IntroductionThesis research
  • Structural Depth
    • Alternate Floor Systems
    • Alternate Foundation Systems
    • Core Framing For UFADS
  • Mechanical Breadth
    • Under Floor Air Distribution System
  • Construction Breadth
    • Direct Cost Of Each System
    • Overall Building Cost
    • Schedule Impact
introduction presentation outline
IntroductionPresentation Outline
  • Introduction
  • Structural Depth
    • Alternate Floors
    • Alternate Foundation
    • Building Impacts
  • Mechanical Breadth
    • Under Floor Redesign
  • Construction Management
  • Conclusions
  • Questions
introduction project players
IntroductionProject Players
  • General Contractor: PJ Dick Inc.
  • Construction Manager: PJ Dick Inc.
  • Architects:
  • Primary: Pfaffmann & Associates
  • Interior: IKM Inc.
  • Engineers:
  • Structural: Atlantic Engineering Services
  • Mechanical: Ray Engineering
  • Electrical: Hornfeck Engineering, Inc.
  • Site Consultant: Civil & Environmental Consultants Inc.
  • Owner: Jackson Row Holdings C/OThe Rubinoff Company
introduction building statistics
IntroductionBuilding Statistics
  • Function Types:
      • Multi-tenant office
      • Ground Floor Retail
      • Underground Parking Garage
  • Size:
      • 228,500 NRSF
      • 6 Stories
  • Cost Information:
      • Overall Cost: $26 million
      • $19.3 million (excluding tenant fit-out work)
  • Delivery Method: Design-Bid-Build with CM at Risk
presentation outline
Presentation Outline
  • Introduction
  • Structural Depth
    • Alternate Floors
    • Alternate Foundation
    • Building Impacts
  • Mechanical Breadth
    • Under Floor Redesign
  • Construction Management
  • Conclusions
  • Questions
structural floor re design
Structuralfloor re-design
  • Existing Composite
  • My Existing (Control for Study)
  • Percentage Composite
    • Shored
    • Unshored
    • Cambered
  • Non-Composite
  • Joists
  • Pre-Cast Concrete
structural floor re design1
Structuralfloor re-design

Floor Framing Comparison

structural foundation re design
StructuralFoundation Re-design
  • 7.5” Diameter Mini-Pile
    • Pall =(.4 to .5) Fy As + (.35 to .45) F’c Ac
      • Fy =Yield Stress of Steel Casing (80ksi)
      • As =Cross-sectional area of steel casing (7.86 in2)
      • F’c =28 day Compressive Strength of grout (4000 psi)
      • Ac =Cross-Sectional area of grout (35.78 in2)

Mini-Piles

150 Ton Capacity

300 Piles

Existing Auger Cast Piles

95 Ton Capacity

374 Piles

structural core re design
StructuralCore Re-Design
  • Existing Core Framing
  • My Existing (Control for Study)
  • Raised Floor Framing
  • Beam Raised Floor
  • Raised Core Framing
structural core re design1
StructuralCore Re-Design

Existing Core Framing

structural core re design2
StructuralCore Re-Design

Raised Floor Core

24” Raised Tate Access Floor

structural core re design3
structuralCore Re-Design

Beam Raised Floor

W21X44 with Slab

structural core re design4
StructuralCore Re-Design

Raised Core Framing

structural core re design5
StructuralCore Re-Design

Raised Core Framing

Option 1

Option 2

structural core re design6
StructuralCore Re-Design

Core Framing Comparison

presentation outline1
Presentation Outline
  • Introduction
  • Structural Depth
    • Alternate Floors
    • Alternate Foundation
    • Building Impacts
  • Mechanical Breadth
    • Under Floor Redesign
  • Construction Management
  • Conclusions
  • Questions
mechanical under floor
MechanicalUnder-Floor

Raised Floor Design

ConCore 2000

  • System Weight: 11.5 lbs/sq. ft
  • Concentrated Load: 2000 lbs
  • Uniform Load: 500 lbs/sq. ft
  • Ultimate Load: 5750 lbs
  • Impact Load: 150 lbs
mechanical duct work re design
MechanicalDuct work Re-Design

Existing Duct Plan

Re-Designed Duct Plan

presentation outline2
Presentation Outline
  • Introduction
  • Structural Depth
    • Alternate Floors
    • Alternate Foundation
    • Building Impacts
  • Mechanical Breadth
    • Under Floor Redesign
  • Construction Management
  • Conclusions
  • Questions
const mgmt cost summary
Const. MgmtCost Summary

Overall Floor Framing Cost Comparison

const mgmt cost summary1
Const. Mgmtcost summary

Overall Core Framing Cost Comparison

const mgmt cost summary2
Const. Mgmtcost summary

Foundation Comparison

  • Existing Auger Cast Piles
    • 374 Piles *( 50’) * $30.00/ft = $561,000
    • Schedule: 50’ (374 piles) / 350 = 53 days
  • Micro-Piles (Mini-Piles)
    • 300 Mini-piles*($55.00/ft) 50’ = $825,000
    • 300 mini-piles * 50’ / 275ft/day = 54.5 days
const mgmt cost summary3
Const. Mgmtcost summary

Projected Mechanical Savings

  • Reduction of Construction Cost:
    • -HVAC Cost = $283,040
  • Enhancement of Property Value:
      • -Tenant Re-Occupancy = $312,131
  • Improvement in Tenant Attractiveness:
      • -Life Cycle Savings (1st Year) = $304,168
      • -Staff Productivity (1st Year) = $635,400
summary conclusions
Summary & Conclusions
  • Structural:
    • Floor Framing: 70% Composite Unshored
        • Watch Steel Prices- 100% Comp. Shored
    • Foundation: Stay with Auger Cast Piles
        • If Schedule becomes an issue go with Mini-Piles
    • Core Framing: Raise the Core
  • Mechanical: Under Floor Air Distribution
special thanks
Special Thanks
  • Atlantic Engineering Services
    • John Schneider
    • Andy Verrangia
  • PJ Dick
    • Frank Babic
    • Matt Wetzel
  • Pfaffman & Associates
  • G.E.M. Inc.
  • AE Faculty
    • Kevin Parfitt
    • Walt Schneider
    • Jonathan Dougherty
  • AE Classmates
  • My Family
structural floor re design2
Structuralfloor re-design

Percentage Composite Comparison Unshored

structural floor re design3
Structuralfloor re-design

Percentage Composite Comparison Shored

structural floor re design4
Structuralfloor re-design

Existing Floor Comparison

structural core re design7
StructuralCore Re-Design

Steel Systems Comparison

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