Todd McCaskey Spring 2006 Senior Thesis Construction Management Penn State University Todd...

Todd McCaskey Spring 2006 Senior Thesis

Construction Management Penn State University

Todd McCaskey’s Senior Thesis

The Pennsylvania State UniversityArchitectural Engineering Department

Construction Management OptionSpring 2006



Presentation Agenda Project Background Info Long Distance Procurement Process Tilt-up Walls vs. Precast Walls FDA Evaluation / Special Considerations Conclusions Questions



Project Statistics

Function: Deboning Facility Size: 67,000 SF Stories: One 30’ High Story Cost: $8,000,000 Start Date: 8 / 9 Completion Date: 1 / 28 Delivery Method: Design-Build



Site Pics



Site Plan



Main Problem:

-Finding Quality Subcontractors Goals:

-Provide Useful Tools

-Show Technology Benefits

Long Distance Procurement



Contacts

Local Suppliers Specialty Product Manufacturers Subcontractors Plan Rooms



Prequalification ChecklistTOPICS QUESTIONS

Integrity 1. Can you meet the completion date + time commitments?2. What projects are you currently working on?3. Currently, what is your backlog of work?4. Can you provide a list applicable references?

Work Experience 1. Have you worked on similar projects to this one?2. What has been your largest project in the past 3 years?3. How many years has your company been in business?4. Do you have any repeat clients? If so, who?

Qualifications of Supervisory Personnel

1. What training programs to you provide for your employees?2. How long has your management been at your company?3. What is their construction background/experience?4. Who will be assigned to this project?

Financial Condition 1. Who is your insurance provider and agent?2. What is your bonding capacity?

Safety 1. Has your organization been sited by OSHA in the last 5 years? If yes, for what?

2. What is your EMR (experience modification Rating)?3. Do you have a corporate safety program or company quality program? Can

you send us a copy of this?



Bid Comparison Sheet





Bid Review

Evaluate Bids Review Scopes Select Subcontractors



Tilt-up vs. Precast

Existing Wall Systems



Background – Stages of Tilt-up1

2

3



Tilt-up Activity Sequencing1. Mass excavation2. Subgrade Preparation3. Install footings and foundations4. Install any underslab MEP work5. Form, reinforce, pour, & cure floor slabs6. Form & pour tilt-up walls7. Insert leveling pads on perimeter footings8. Set tilt-up walls with bracing9. Grout in-between panels and footings10. Steel erection11. Erect insulated metal wall panels12. Install Roofing and sheet metal13. Remove wall bracing



Tilt-Wall Composition



Heat Transfer

Equation: qx = (T∞1 - T∞2) * A / Total R-Value

R-Value

Concrete Walls 10

5” Metal Insulated Panels

40

Determination = Concentrate mainly on: Cost Schedule Constructability



Tilt-Up FeasibilityFeasibility Questionnaire for Tilt-up Wall Panels Yes No

Are the exterior panel surfaces basically flat? X

Is the site relatively flat or is there sufficient floor area available as a casting surface? X

Will the majority of the panels be under 30ft. in height? X

Will these walls represent over 50% of the total building wall surface? X

Are these tilt-up wall panels going to rest on the foundation? X

Will the weight of the panels fall within the crane capacity limits? X

Will the panels be designed with a basically repeatable pattern? X

Is this a common construction method in the local area and are there any construction

companies with concrete tilt-wall experience?

X



Panel Layout Diagram



Panel Pick Points1

2

3

2-Point Lifting 4-Point Lifting 8-Point Lifting

Heaviest Panel < 50 Tons

Larger Panels, 8-Point Harness

Smaller Panels, 4-Point Harness

100 Ton Mobile Truck Crane



Wall Comparison ChartTILT-UP PRECAST

COST $376,200 $438,900

MATERIAL Affordable in TN Early delivery charge

ERECTION Fewer panels More panels, More time

LEAD TIME Cast on-site, possible weather impacts

5-8 Weeks

TRANSPORTATION Cast on site, no cost Delivery from plant to site

CONSTRUCTABILITY Extra planning Very Similar

QUALITY Potential Repairs Better, due mainly to the controlled environment



FDA / Special Considerations Finishes :

~Floors~Walls~Pipes~Trench Drains

High Traffic Areas Doors Cold Climate



Conclusions Utilize Long Distance Procurement Tools Tilt-up Walls vs. Precast Walls

~Close Call

~Tilt-up is a good alternative

~Precast has better quality & Less Repairs Associated

~I would Pick Precast

Importance of FDA / Special Considerations



Acknowledgements Dr. Riley & the Architectural Engineering Department United Insulated Structures Corporation

~Larry Lantero, Jr.~Rich Maleczka

GEM Construction~Gale Measel~Greg Measel

P.J. Dick Incorporated~Tom Berkebile~Eric Pascucci

Family and Friends~Mom, Dad, Jon, Scott, & Dina~My fellow AE peers



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