Introduction Structural Redesign Gravity System Floor System Existing Structure Lateral System Foundations Weight Comparison Floor system Seismic Comparison Gravity system Lateral system Outline Construction Management Breadth Cost Comparison Proposal and Problem Statement Schedule Comparison Depth Topic Breadth Topics Construction Management Conclusions, Acknowledgements, Questions & Sustainability Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Proposal and Problem Statement Depth Topic Breadth Topics Construction Management Sustainability Introduction Structural Redesign Gravity System Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Location: Lateral system Wilmington Delaware Proposal and Problem Statement Depth Topic Owned and managed by: Breadth Topics Pettinaro Real Estate Development Company Construction Management Sustainability Delivery Method: Structural Redesign Design-Bid-Build Gravity System Floor System Lateral System Construction Time: Weight Comparison November 2006 – May 2008 Seismic Comparison Construction Management Breadth Cost: Cost Comparison $11.5 Million Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Occupancy: Lateral system Proposal and Problem Statement Upscale Residential Apartment Building Depth Topic (89 Units) Breadth Topics Construction Management Size: Sustainability 180,000 Square Feet Structural Redesign Gravity System Stories: Floor System 7 Stories above grade Lateral System 1 Story partially below grade Weight Comparison Seismic Comparison Construction Management Breadth Major Building Codes: Cost Comparison IBC and amendments adopted by New Castle Schedule Comparison County (DE) Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Proposal and Problem Statement Depth Topic Breadth Topics Construction Management Sustainability Existing Structure Structural Redesign Gravity System Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Foundations: Proposal and Problem Statement 3000 psf allowable soil bearing capacity Depth Topic Breadth Topics Construction Management 3000 psi concrete spread footings Sustainability Structural Redesign 4 inch thick slab on grade Gravity System 3500 psi concrete Floor System On 4 inches of crushed stone Lateral System 6x6 W1.4xW1.4 WWF Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Floor System: Lateral system Proposal and Problem Statement Depth Topic Precast Hollow Core Plank Breadth Topics Construction Management Rest on 3 inch bearing plate on CMU bond Sustainability beam Structural Redesign Gravity System Tied in with #4 reinforcing bars spaced at 48 Floor System inches Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Gravity System: Lateral system Proposal and Problem Statement Depth Topic 8 inch CMU Breadth Topics Decorative CMU on exterior walls Construction Management Sustainability #4 reinforcing bars spaced at 32 or 48 inches Structural Redesign (depending on level) in grouted cells Gravity System Floor System Window and door openings supported by Lateral System precast lintels Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral System: Lateral system Proposal and Problem Statement Depth Topic 8 inch CMU walls Breadth Topics Construction Management Reinforced cells grouted solid all the way down Sustainability to foundation Structural Redesign Gravity System Reinforced according to level and load Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Proposal and Problem Statement Depth Topic Breadth Topics Construction Management Sustainability Proposal and Structural Redesign Problem Statement Gravity System Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Level Dead Loads Existing Structure Roof 821.30 Foundations 7 1788.24 Floor system 6 1738.89 Gravity system 5 1738.89 Lateral system Problem Statement: 4 1738.89 Proposal and Problem Statement 3 1738.89 Depth Topic Large building self-weight 2 1738.89 Breadth Topics 1 1788.24 Construction Management Ground 1685.56 Lateral system design controlled by seismic Sustainability Total Dead Load 14777.80 force Structural Redesign Gravity System Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Proposed Solution: Proposal and Problem Statement Depth Topic Reduce building self-weight Breadth Topics Construction Management Redesign entire structural system using the Sustainability Infinity Structural System Structural Redesign Gravity System Reduce seismic load Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Breadth Topics: Proposal and Problem Statement Depth Topic Construction Management Breadth Topics Cost Comparison Construction Management Schedule Comparison Sustainability Structural Redesign Sustainability Gravity System Green roof Floor System Rainwater collection Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Proposal and Problem Statement Depth Topic Breadth Topics Construction Management Sustainability Depth Topic: Structural Redesign Structural Redesign Gravity System Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Total Load Stud Presentation Outline Floor Level per Stud(s) Spacing Stud Type Height (kips) (in) Introduction Roof - - - - Existing Structure Foundations 7 10 1.36 16 600S162-54 33ksi Floor system 6 9.33 2.84 16 600S162-54 33ksi Gravity system Lateral system Gravity System: 5 9.33 4.32 16 600S162-68 33ksi Proposal and Problem Statement 4 9.33 5.80 16 600S162-97 33ksi Depth Topic Ground floor structural system would remain Breadth Topics 3 9.33 7.28 16 600S162-97 33ksi similar to existing Construction Management Sustainability “Pre - panelized” metal stud wall system 2 9.33 8.76 16 (2) 600S162-97 33ksi Structural Redesign Gravity System 1 10 10.24 16 (2) 600S162-97 33ksi Additional walls added due to alternative floor Floor System Ground 12 11.72 - - system considerations Lateral System Weight Comparison Seismic Comparison Studs sized according to manufacturer specs Construction Management Breadth Cost Comparison Schedule Comparison Conclusions – Acknowledgements – Questions & Comments
Presentation Outline Introduction Existing Structure Foundations Floor system Gravity system Lateral system Proposal and Problem Statement Depth Topic Breadth Topics Construction Management Sustainability Structural Redesign Gravity System Floor System Lateral System Weight Comparison Seismic Comparison Construction Management Breadth Typical Level Layout Cost Comparison Ground Level Schedule Comparison Layout Conclusions – Acknowledgements – Questions & Comments
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