Greg Blatt Penn State Architectural Engineering Construction Management April 12, 2004

901 New York Avenue Washington, D.C. Greg Blatt Construction Management

901 New York Avenue Washington, D.C. Greg Blatt Construction Management

901 New York Avenue Washington, D.C. Greg Blatt Construction Management  Class A Office Building  Cost: $54,000,000  Size: 580,00 Square Feet  Construction Dates: August 2002 – October 2004  Uses: Office space, street-level retail, underground parking garage, & a health club Project Information

901 New York Avenue Washington, D.C. Pour Sequencing Foundation Redesign LEED Certification Greg Blatt Construction Management

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Original Parameters 9 pours per floor Columns poured the day after the slab for each section Pour #1 for each floor was started after Pour #4 for the previous floor Originally scheduled from May 20, 2003 to November 6, days on the schedule

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Pour Breaks

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Proposed Parameters 9 pours per floor Columns poured the day after the slab for each section Pour #1 for each floor was started after Pour #4 for the previous floor Originally scheduled from May 20, 2003 to October 31, days on the schedule Durations changed on the lower floors to accelerate the schedule

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Comparison LevelOriginal Duration (days) Proposed Duration (days) Comparison (days) Second Third2423 Fourth2322 Fifth22 0 Sixth22 0 Seventh2322 Eighth2322 Ninth22 0 Tenth22 0 Eleventh22 0 Roof19 0 Total

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Sequencing Conclusion One week was saved due to the schedule acceleration. Other trades can begin their work earlier. This allows the occupants to move into their spaces earlier. The owner will be able to start to make money on building at an earlier date.

901 New York Avenue Washington, D.C. Pour Sequencing Foundation Redesign LEED Certification Greg Blatt Construction Management

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Foundation Redesign Change from column footings to a mat foundation Potential savings in the schedule Mat foundation will be more expensive (extra materials & labor) Economical comparison

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Original Design 146 Column Footings 39 are combined footings Smallest Footing – 4’-6” x 4’-6” x 21” Largest Footing – 17’-0” x 17’-6” x 64” 15,000 psi soil bearing capacity Scheduled for 35 days Estimated Cost of $645,966

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Mat Foundation Design Check for punching shear Determine thickness for different strengths of concrete Estimate costs for each strength of concrete Estimate time duration Compare to column footing design

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Mat Foundation Design Concrete Strength (psi) Foundation DepthCost 3,0005’-7”$ 1,806,517 4,0005’-2”$ 1,671,703 5,0004’-10”$ 1,563,851 6,0004’-6”$ 1,455,999

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Mat Foundation Design 6,000 psi concrete foundation was the least expensive of the 4 options analyzed Estimated to take 45 days to complete

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Foundation Comparison Column Footings Mat Foundation Change Cost$645,966$ 1,455,999+ $ 810,033 Duration35 days45 days+ 10 days

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Foundation Conclusion Mat foundation costs approximately $810,000 more than the column footings. Mat foundation is estimated to take 10 more days to complete than the column footings. Overall, the column footings were a better choice as a foundation system for this project.

901 New York Avenue Washington, D.C. Pour Sequencing Foundation Redesign LEED Certification Greg Blatt Construction Management

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED LEED Certification Analyze the project to check if it meets the minimum LEED Certification requirements. If it does not meet those requirements, suggest ways to get the project to an acceptable certification level.

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED LEED Certification LEED Rating Version 2.1 Rated: 26 – 32 points Silver: 33 – 38 points Gold: 39 – 51 points Platinum: 52 + points Total of 69 points that can be earned

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Initial LEED Analysis LEED SECTION points earned / points possible Sustainable Site 6 / 14 Water Efficiency 1 / 5 Energy & Atmosphere 3 / 17 Materials & Resources 0 / 13 Indoor Environmental Quality 0 / 15 Innovation & Design Process 1 / 5 Total 11 / 69

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED Suggestions Dedicated Outdoor Air System (DOAS) Construction Waste Management System Use of Local/Regional Materials Additional Daylighting Designated spots for carpooling

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED LEED Analysis w/ Suggestions LEED SECTION points earned / points possible Sustainable Site 7 / 14 Water Efficiency 4 / 5 Energy & Atmosphere 4 / 17 Materials & Resources 6 / 13 Indoor Environmental Quality 9 / 15 Innovation & Design Process 4 / 5 Total 33 / 69

901 New York Avenue Washington, D.C. Greg Blatt Construction Management POUR SEQUENCING FOUNDATION REDESIGN LEED LEED Conclusion The original design would not meet LEED Certification requirements. By implementing the suggested items, 33 credits were obtained for the certification process. The suggested items led to a rating of Silver for the project.

901 New York Avenue Washington, D.C. Greg Blatt Construction Management Conclusions Pour Sequencing – Accelerated the schedule by 1 week Foundation Redesign – Column footings are a better choice than a mat foundation LEED Certification – Changes could be implemented to reach a minimum certification level.

901 New York Avenue Washington, D.C. Greg Blatt Construction Management THANK YOU Alison Starner – Clark Construction Marshall Singh – Clark Construction Cathy Barus – Clark Construction Jon Kolbe – Clark Concrete Frank Schultz – Hensel Phelps Walt Schneider – AE Faculty AE Faculty & Staff Family & Friends

901 New York Avenue Washington, D.C. Greg Blatt Construction Management QUESTIONS