601 New Jersey Avenue
Download
1 / 67

- PowerPoint PPT Presentation


  • 157 Views
  • Uploaded on

601 New Jersey Avenue Washington, D.C. Alternative Construction Materials Amber L. House Structural Option. Thesis Overview Building Introduction Structural Depth Architectural Breadth Construction Management Breadth Conclusions Acknowledgements Questions. Presentation Outline:.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '' - essien


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Slide1 l.jpg

601 New Jersey Avenue

Washington, D.C.

Alternative Construction Materials

Amber L. House

Structural Option


Slide2 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide3 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide4 l.jpg

  • Replace Existing Floor System

  • Investigate the Impacts of this Change on other Systems

  • Determined How this Change will influence the Cost and Construction Schedule

  • Summarize Owner’s Options.

Thesis Overview:


Slide5 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide6 l.jpg

  • Purpose:

    • Win the tenancy of the Federal Trade Commission

  • Location:Washington, D.C.

  • Size:

    • Office: 258,000 sq ft. (9 stories)

    • Garage: 90,000 sq ft. (3 levels)

  • Completed:August 2001

Building Introduction:


Slide7 l.jpg

  • Project Team:

    • Owner:Lowe Enterprises & Teacher’s Insurance Annuity Association

    • General Contractor:James G. Davis Construction Co.

    • Architect:Hickok Warner Fox Architects

    • Civil Engineers: Delon Hampton & Associates

    • MEP Engineers: Girard Engineering, Ltd.

    • Structural Engineers: Structural Design Group, Ltd.

Building Introduction (con’t):


Slide8 l.jpg

  • Site:

    • Shape

    • Special features:

    • Limitations:

      • 110 foot Height

      • Minimum Site Parking

        • 1 spot per 1800 sq ft.

      • Square Feet

Building Introduction (con’t):


Slide9 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide10 l.jpg

Structural Depth:


Slide11 l.jpg

Structural Depth:


Slide12 l.jpg

  • Existing Office:

    • 3.25 inch light weight concrete

    • 3”- 20gage steel deck

    • Composite steel beams

    • Occupies 24.5”

      of floor space

    • 40 foot spans

Floor System:


Slide13 l.jpg

Floor System (con’t):


Slide14 l.jpg

  • Redesigned Garage: (same)

  • Redesigned Office:

    • Two way slab

    • 10.5” depth

    • 3.5” Drop panels typical

    • 5.5” Drop panels

    • 12” X 17.5” edge beam

Floor System (con’t):


Slide15 l.jpg

Floor System (con’t):


Slide16 l.jpg

Floor System (con’t):


Slide17 l.jpg

Floor System (con’t):


Slide18 l.jpg

  • New vs. Old Office Floor System:

    • Advantages:

      • Requires 14” less space floor to floor space.

      • 10th floor can be added (28,500 sq ft.)

      • Low vibrations

      • Easy to form into shapes

      • Room for Sprinklers

      • Common material in D.C. area

    • Disadvantages:

      • Columns in office space

      • Heavier system

      • Formwork

Floor System (con’t):


Slide19 l.jpg

Structural Depth:


Slide20 l.jpg

  • Existing:

    • Steel W shapes

    • Start at first floor

    • Typically span three floors

  • New:

    • Square Concrete

      • F’c = 4000 psi upper levels

      • F’c = 5000 psi lower levels

    • Sizes:

      • Typically 16” x 16” to 24” x 24”

    • 9 typical columns were designed

Columns:


Slide21 l.jpg

Columns (con’t):


Slide22 l.jpg

  • Impact Analysis:

    • Vehicle

      • Vehicle: Large SUV

      • Weight: 5000lb

      • Bumper height~ 36 in

      • Acceleration 0-60mph in 8.5 seconds

    • Assumptions:

      • Deceleration of vehicle in 0.5 seconds.

      • Central impact

      • Final velocity of automobile = 0

      • Column velocity = 0

      • Speed from sloped floor ignored

Columns (con’t):


Slide23 l.jpg

Columns (con’t):


Slide24 l.jpg

Columns (con’t):


Slide25 l.jpg

Structural Depth:


Slide26 l.jpg

  • Existing Structure:

    • Soil Conditions:

      • River terrace deposits consisting of clay, silt, sand and gravel underlain by residual materials

      • Contains concrete, brick and other construction debris

      • Ground water at depths ranging from 13 to 29 feet below the existing grade.

      • Maximum allowable soil bearing pressure of 6000 psf.

    • Interior Foundations:

      • Concrete F’c = 3000 psi

      • Reinforced

      • Square

Foundations:


Slide27 l.jpg

  • Existing Structure:

    • Perimeter Foundations:

      • Concrete F’c = 3000 psi

      • Reinforced Fy= 60 ksi

      • Rectangular

      • Strap beam

Foundations (con’t):


Slide28 l.jpg

Foundations (con’t):


Slide29 l.jpg

  • Redesigned Structure:

    • Perimeter Foundations

      • Loads less than existing

      • Removed strap beam

      • Used a combined footing

Foundations (con’t):


Slide30 l.jpg

Foundations (con’t):


Slide31 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide32 l.jpg

Architectural Breadth:


Slide33 l.jpg

Architectural Breadth:



Slide35 l.jpg

G- Street Façade (con’t):


Slide36 l.jpg

Architectural Breadth:


Slide37 l.jpg

  • Redesigned Structure Ceiling Height:

    • 8’6” ceilings on floors 2-10 maintained

    • 1st floor ceiling height reduced by 4”

      • Existing: 10’7”

      • New: 10’3”

  • Existing Floor-to-Floor Heights:

    • Floors 2-9, 11.91’

    • 1st floor, 14’

  • Redesigned Structure Floor-to-Floor Heights:

    • Floors 2-10, 10’10”

    • 1st floor, 12’6”

Ceiling & Floor Heights:


Slide38 l.jpg

Architectural Breadth:


Slide39 l.jpg

  • Parking Garage:

    • Existing Construction:

      • 198 parking spaces

    • Redesign

      • Loss Approx 9 % of parking

      • 180 parking spaces remain

Columns in Office Space:


Slide40 l.jpg

Columns in Office Space (con’t):


Slide41 l.jpg

Columns in Office Space (con’t):


Slide42 l.jpg

Columns in Office Space (con’t):


Slide43 l.jpg

Columns in Office Space (con’t):



Slide45 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide46 l.jpg

Construction Management:


Slide47 l.jpg

Construction Management:


Slide48 l.jpg

  • Existing Schedule:

    • Design Phase: Start 1/14/ 2000 32.2 weeks

    • Fabrication/Delivery of Major Building materials: Start 1/27/2000

    • Foundations: Start 10/18/2000 16.8 weeks

    • Superstructure: Start 2/27/2001 21.2 weeks

    • Spray on Fireproofing: Start 4/20/2001 22.1 weeks

  • Schedule of Redesigned Structure:

    • 12 weeks to pour 10 floors

    • 4 weeks for fabrication of rebar

    • Fast track Construction

    • Spray on fireproofing eliminated

Schedule:


Slide49 l.jpg

Construction Management:


Slide50 l.jpg

  • Existing Structure:

    • Actual: $24,330,000.00

    • Includes garage and office

  • R.S. Means Square Foot Cost:

Cost:


Slide51 l.jpg

Cost (con’t):


Slide52 l.jpg

Cost (con’t):


Slide53 l.jpg

  • Internal Rate of Return:

    • Estimated Sale Price

      • Retained for 25 years

    • MARR original structure

      • 8.2 % with assumptions

    • MARR Redesigned Structure

      • 8.97%

Cost (con’t):


Slide54 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide55 l.jpg

  • Redesigned Floor System Key:

    • Advantages:

      • 10th floor (28,500 sq ft.)

      • Comparable schedule

      • Common material in D.C. & Competitive Contractors

      • More flexible for different tenant space requirements

    • Disadvantages:

      • Columns in office space

      • Possible lower rental value

      • Higher initial cost

      • Loss of parking spaces

Conclusions:


Slide56 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:


Slide57 l.jpg

  • Michael WeissStructural Design Group

  • Ron SchneckHickok Warner Fox

  • Tom BickleyGirard Engineering

  • Jim AlexanderThe Albemarle Group, LLC

  • Julie KirkwoodJames G. Davis Construction

  • Dr. Hanagan Penn State University

  • AE Faculty

Acknowledgements:


Slide58 l.jpg

  • Thesis Overview

  • Building Introduction

  • Structural Depth

  • Architectural Breadth

  • Construction Management Breadth

  • Conclusions

  • Acknowledgements

  • Questions

Presentation Outline:



Slide60 l.jpg

  • New Office:

    • Two Way Slab Design Method (ADOSS)

      • Typical Assumptions:

        • Outside edge was straight

        • Ignore elevator Edge beams

        • Case 1 Cantilever

        • Case 2 Removed

Floor System (con’t):


Slide61 l.jpg

Floor System (con’t):


Slide62 l.jpg

Floor System (con’t):


Slide63 l.jpg

Floor System (con’t):


Slide64 l.jpg

Floor System (con’t):


Slide65 l.jpg

  • New:

    • Column Schedule

Columns (con’t):


Slide66 l.jpg

  • New:

    • Column Schedule

Columns (con’t):


Slide67 l.jpg

  • New vs. Old Office Floor System :

    • Advantages:

      • Higher long run profits

      • Competitive concrete contractors

      • Common Construction method

      • Economies of scale

    • Disadvantages:

      • Higher initial cost

      • More interest on loan

      • Higher cost for building management

      • Possible lower rental value

Cost (con’t):


ad