The Marriott Hotel at Penn Square and The Marriott Hotel at Penn - PowerPoint PPT Presentation

The Marriott Hotel at Penn Square and The Marriott Hotel at Penn Square and Lancaster County Convention Center Lancaster County Convention Center Trevor Sullivan Trevor Sullivan Penn State University 5 th Year AE – CM Option The Pennsylvania State University � Project Introduction Architectural Engineering Architectural Engineering � Problem Statement � Problem Statement � Proposal Construction Management Option � Laser Scanning Research Fifth Year Thesis Presentation � Plumbing Redesign April 15 th 2008 � Minipile Research � Structural Breadth � Retaining Wall Design � Floor System Redesign � Construction Sequencing � Conclusions and Acknowledgments Images courtesy of: http://www.lancasterconventioncenter.com/

Structural: Project Information: � 200 caissons : 36”-90” diameter � Location: Penn Square – Lancaster, PA � Cast-in-place concrete structure (post-tensioned � Total Cost: $170 million � Construction Cost: $105 million for hotel tower) � 153’ bow string metal trusses span the large � Total Area: 412,079 SF, 19 Stories exhibit level floor exhibit level floor � Convention Center: 220 000 SF � Convention Center: 220,000 SF Mechanical: � Marriott Hotel : 300 rooms � Combination air and water system Construction: � (8) large boilers, (2) cooling towers, (2) water � Phase 1: Site Prep: May 2006 – Oct. 2006 cooled chillers ( 6 Months) Electrical: � Phase 2: Construction: Oct. 2006 – Dec. 2008 � 2 main service points, each 4000 amp, 480Y/277 ( 26 Months) volts, 3PH., 4W. volts, 3PH., 4W. Historical: Historical: � 2000 HP backup generator with � Façade stabilization and restoration of the 109 a 2000 gallon diesel storage tank year old Watt & Shand façade � 4 surrounding historical structures to be incorporated into the project as museums.

Delivery Method Organization Chart Owners RACL / LCCCA WBE / MBE Developer Historical Architect Construction Facility Manager 17 Prime Liaison Liaison High Associates High Associates, Preservation Preservation Cooper Carry Cooper Carry, Manager Manager Interstate Hotel Contractors J. Allen Taylor Ltd Trust Inc . RCM Electrical Eng. Testing Lab Architect Structural Eng. Rosser Schoor Depalma CHP Uzun & Case International Geotech. Eng. Façade Mech/Plumbing Structural Eng. McClymont & Consultant Eng. Baker Ingram Rak Tradjer Cohen Jordan & Skala Site Architect Other Hammel Consultants Associates

Convention Entry Construction Problem Statement The Marriott Hotel at Penn Square and Proposed Solutions Lancaster County Convention Center � Natural Spring Encountered: An � Implement Laser Scanning Technology: Use underground spring was encountered during Trevor Sullivan Laser Scanning to survey the Watt & Shand façade excavation in the museum level. This directly Penn State University 5 th Year AE – CM Option (not traditional methods). effected the abiliblty to place the museum level SOG and thus proceed with the � Project Introduction � Foundation Redesign : Implement a combination construction of the concrete structure. caisson and minipile foundation system. � Problem Statement � Problem Statement � Façade Issues: During construction the � Plumbing Redesign: Increase the capacity of the � Proposal existing Watt & Shand façade was discovered groundwater lift station to handle the additional flow Exhibit to not be straight nor plumb – The caissons Level � Laser Scanning Research requirements. could not be drilled where needed and thus Excavation Process Convention Museum changed the column locations and edge of � Plumbing Redesign Entry Level Level � Structural Redesigns: slab locations for the entire tower. 3 months Composite Joist Detail � Foundation Wall Redesign of redesign/revision work to drawings to � Minipile Research � Convention Center Structural System completely rectify the problem. � Structural Breadth Redesign � Retaining Wall Design � Construction Re-Sequencing Analysis: to q g y implement the proposed changes. � Floor System Redesign � Construction Sequencing The Goal: Decrease Construction Schedule! � Conclusions and Acknowledgments

Façade Issues: The Marriott Hotel at Penn Square and Laser Scan Survey Comparison � Limited surveying data points obtained Lancaster County Convention Center Additional Costs Delays due to � Façade not straight or plumb Initial Cost Savings due to Redesign Redesign Trevor Sullivan � Caissons near the façade could not be drilled Penn State University 5 th Year AE – CM Option due to conflicts. The result: Traditional $500 $40,000 3 months - � The columns needed to be moved � Project Introduction � The edge of slab locations changed � Problem Statement � Problem Statement L Laser Scan S $27 500 $27,500 - - $13 000 $13,000 � Changes needed to be reflected on � Proposal all the drawings – took 3 months to complete. � Laser Scanning Research Typical Laser Scanning Equipment � Plumbing Redesign � Minipile Research Existing Watt & Shand Façade: � To be stabilized, restored, and integrated into the new � Structural Breadth building � Retaining Wall Design � Parts of the façade are 109 years old � Parts of the façade are 109 years old Laser Scanning Computer Output for a Facade � Floor System Redesign � Construction Sequencing � Conclusions and Acknowledgments Photos courtesy of: http://www.arctron.com/pix/vermessung/3scanner

Groundwater Piping Design Estimate The Marriott Hotel at Penn Square and Pump Calculation Summary Lancaster County Convention Center Item Description Size Quantity Unit Cost Cost Total Discharge Head Trevor Sullivan TDH = 18.95 ft Penn State University Pipe* LF 5 th Year AE – CM Option Carbon Steel Plain Sch. 40 8" 80 $85.00 $6,800 Plumbing Redesign Summary Gallons per Minute GPM = 340 gal/min Carbon Steel Plain Sch. 40 4" 175 $30.00 $5,250 � Project Introduction PVC Sch 40 Perforated 6" 825 $10.00 $8,250 Item Existing Proposed Total Head Developed PVC Sch 40 Perforated 8" 250 $15.00 $3,750 � Problem Statement � Problem Statement H H = = 58.0 58 0 ft ft Pump Sizes 1 HP 15 HP Brake Horsepower � Proposal Equipment Pump Capacity 60 GPM 340 GPM BHP = 13.7 HP pump Pre-cast Basin 96" diameter 1 1 $5,000.00 $5,000 Pump Arrangement Duplex Triplex � Laser Scanning Research Submersible Pumps 340 GPM 1 3 $15,000.00 $45,000 Total Capacity 120 GPM 1020 GPM � Plumbing Redesign Total $74,050 Underslab Drainage 4" PVC 6" PVC * includes an allowance in the unit price for fittings. � Minipile Research Ontop of Footing Drainage 6" PVC 10" PVC � Under-slab drainage installation (above) Additional Plumbing Costs Total $74,050 � Structural Breadth � Pre-cast basin installation: Sanitary on left, Ground water on right (left) � Retaining Wall Design � Floor System Redesign � Construction Sequencing � Conclusions and Acknowledgments

Minipile and Caisson Analysis Summary The Marriott Hotel at Penn Square and Cost Schedule Schedule Minipile Foundation Design Summary Description Cost Lancaster County Convention Center Difference (weeks) Difference Design Input All caissons (existing system) $1,084,140 --- 26 --- Trevor Sullivan 1) Grout Strength Penn State University 5 th Year AE – CM Option f'c = 3 ksi 36" caissons converted to minipiles $1,466,160 $382,020 10 -16 2) Grout Factor Safety � Project Introduction FS g = 3 36" and 42" caissons converted to $1,783,980 $699,840 16 -10 minipiles � Problem Statement � Problem Statement 3) 3) Cross Sectional Area of Grout Cross Sectional Area of Grout in 2 A g = 38.48 � Proposal Minipile and Caisson Schedule Analysis 4) Steel Yield Strength � Laser Scanning Research F y-steel = 60 ksi � Caisson casing shafts creating site congestion (above) Weeks 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 � Karst topography map of PA (upper left) 5) Steel Factor of Safety � Plumbing Redesign FS y-steel = 0.47 � Karst topography section (lower left) Caissons Only 204 � Minipile Research � Minipile to caisson load comparison Chart (below) 6) Bar Diameter Minipile and Caisson 375 in 2 A b = 1.25 (36" and 42" to minipile) 37 � Structural Breadth Caisson to Minipile Load Comparison Schedule 7) Cross Sectional Area of Casing Caisson Min. Required 8" Minipile Load # of Minipiles Minipile and Caisson 244 � Retaining Wall Design in 2 A casing = 11.82 Diameter Capacity Capacity per Group casing (36 caissons to minipile (36" caissons to minipile 78 78 36" 565K 300K 2 Design Output � Floor System Redesign 42" 770K 300K 3 54" 1200K 300K 4 1) Allowable Axial Stress � Construction Sequencing 60" 1500K 300K 5 Legend F a = 128 ksi 66" 1900K 300K 7 72" 2260K 300K 8 Caisson Duration (with quantity) � Conclusions and Acknowledgments 2) Axial Compression 84" 3080K 300K 11 Minipile Duration (with quantity) P c-allowable = 300 k 90" 3535K 300K 12 Images courtesy of: www.delminsociety.net fwie.fw.vt.edu