Dan Packer Construction Management Senior Thesis April 16, 2002 Site Improvements & New Middle School Building William Penn Charter School Dan Packer Construction Management Senior Thesis April 16, 2002 Department of Architectural Engineering

Presentation Outline Project Background Site Renovation Planning 4D Site Planning Alternative Structural System Summary Questions

Project Background Quaker School - founded in 1689 Oldest Quaker School in the world High standards – Academic and Athletic Kindergarten – 12th grade Enrollment – 855 students Located in Philadelphia 45 acre campus 5 existing buildings

Project Background Part 1 of Master Plan Part 2 Site Improvements Middle School Building Part 2 Performing Arts Building Middle School Performing Arts

Project Background Primary Project Team Owner: William Penn Charter School General Contractor: Intech Construction, Inc. Architect: Bower Lewis Thrower Landscape Architect/ Civil Engineer: Cairone & Kaupp, Inc. Structural Engineer: O’Donnell & Naccarato MEP Engineer: Paul H. Yeomans, Inc. Acoustical Consultant: Metropolitan Acoustics

Project Background Project Delivery Method

Project Background Project Timeline Site Improvements 29May01 – 03Sept01 Middle School Building 20June01 – 15Aug02

Project Background Project Costs Site Improvements $3.1 Million Middle School Building $7.8 Million Contingency of $300,000 to be used for either phase of the project

Project Background Middle School Building Features Similar Architecture as other buildings on campus Exterior stone matched Main Building’s exterior stone (Wissahickon Schist) Natural Slate roof matching Main Building’s Exposed heavy timber trusses

Project Background Site Improvement Features Demolition Trees and shrubs Tennis courts Sidewalks and asphalt roads Athletic fields Playground area Fencing and signage Sewer piping & structures

Project Background Site Improvement Features New Construction Sanitary and storm sewer piping - structures Underground electrical & telecommunications New parking lots, campus roads, sidewalks, curbs Seven new tennis courts Two new athletic fields with new sod turf Site fencing Playground area with safety surface Landscaping and site furnishings

Site Renovation Planning Pre – Construction Planning Purpose Alleviate headaches during construction Possible cost and time savings Avoid delays by staying on top of issues Permits Long lead time items Create communication between all project members Owner Designers Construction Manager & Subcontractors

Site Renovation Planning Pre – Construction Planning Key items to be addressed Review schedule dates – make sure all are in agreement Parking requirements – temporary parking lot Permits Site utilities, sewer tie-ins Road closure Meet with neighbors and address concerns Home inspections Site specific safety plan

Site Renovation Planning Pre – Construction Planning Key items to be addressed Locate existing utilities Submittals for long lead time items Underground piping and structures Contract a testing consultant Concrete pours Soil compaction rates Discuss site access with Owner

Site Renovation Planning Site Access Not 100% accessible throughout summer May 29, 2001 – small section available June 11, 2001 – remainder of site available Day camps from June 18th – August 3rd DEMO ALLOWED

Site Renovation Planning Addressing the issues Communication between all parties Schedule Constructability Address all issues early Develop site layout plan Use new technology to assist with planning Project collaboration via the internet 4D CAD

4D CAD What is 4D CAD?

4D CAD Advantages & Disadvantages Advantages Ability to clearly communicate plan Identify major issues ahead of time Owner’s needs Constructability Develop a sequencing plan Balance resources – crews and equipment

4D CAD Advantages & Disadvantages Disadvantages Time intensive to develop Expensive In House Outsourced Desired level of detail can be difficult to achieve

4D CAD Benefits for WPCS Site Improvements Construction Manager (GC) Gives opportunity to correct conflicts before they arise in the field during a tight schedule Owner Site access plan – what the contractor expects Subcontractors Allows subs to see number of crews necessary to complete work Where they should be at all times

4D CAD

4D CAD

4D CAD Recommendation Not recommended for WPCS Site Improvements Smaller project Effectively communicate the plan during Pre-Construction Utilize One or Two Week Look-Aheads

Floor System Redesign VS. Concrete Masonry Units – Open Web Steel Joists – Slab on Metal Deck VS. Concrete Masonry Units – Precast Hollow Core Planks

Hollow Core Precast Planks Original System Welded bearing plate 4” Slab on Metal Deck 8” Bond Beam K Series joists ranging from 10 – 26” deep 8” CMU

Hollow Core Precast Planks Proposed System Reinforcement 2” topping slab 8” Precast hollow core plank 8” Bond Beam 8” CMU

Hollow Core Precast Planks System Comparison Steel Joists Hollow Core Plank 10”-26” depth 10” (8” + 2”) deep 3’ O.C. 4’ O.C. Vibration Considerations No vibration Acoustical Issues Sound Attenuation Bridging needed to stabilize Laterally Stable Tack Welded to deck No Metal Deck 9 different types of joists 1 type of concrete plank Welded to steel plate at bearing Reinforcing at Connection to Wall

Hollow Core Precast Planks Schedule Comparison – Saves 22 days 1st & 2nd Floor Sequence Roof enclosed by October 18th

Hollow Core Precast Planks Cost Comparison Original Floor System $202,764 Precast Plank System $180,581 Cost Savings $22,183

Hollow Core Precast Planks Conclusion Recommendation Precast Planks Simpler for field construction Produces minor cost savings Shortens schedule for earlier enclosure

Summary Site Renovation 4D CAD Floor System – Precast Plank Communication between parties Well thought out plan 4D CAD Effective on larger scaled projects Floor System – Precast Plank Simple system Reduce schedule

Common Point Technologies Acknowledgements Thanks to… AE Faculty Fellow Students Friends and Family Intech Construction Nitterhouse Concrete Common Point Technologies

Questions???