Agenda. Agenda. Project Overview. Project Overview. CM In-House Building Commissioning. Virtual MEP Coordination. Virtual MEP Coordination

Transcription

1 Pump Truck Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology Depth Analysis: CM In-House Breadth Analysis: Virtual MEP The Pennsylvania State University Department of Architectural Engineering Breadth Analysis: Underpinning --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology Project Project Location:, Charlottesville, VA Occupant: UVA School of Engineering and Applied Science Function: --- Nanotechnology Laboratories --- Faculty Offices --- Conference Rooms --- Computer Labs and work-study areas Size: 80,000 gsf Cost: $28,000,000 Project Delivery Method: Owner s Agent Features: --- Physically Joins Existing Material Science & Chemistry s --- two floor atrium, café, and courtyard Dates of Construction: --- Start Date: June Anticipated Completion: March Underpinning Failure Delay: 2 months --- Current anticipated completion: May 2006 $ / s.f. --- Materials Science Engineering & Nanotechnology Project Construction Features: --- Five total levels, three above grade ft permanent retaining wall --- Extensive vibration control in sub-basement individually ducted fume hoods --- Structural Steel Frame with cast in place concrete slabs --- Brick and architectural pre-cast concrete facade Project Team: --- Construction Manager: Barton Malow --- Architect: VMDO Architects, P.C. --- Owner: --- Mechanical/Electrical Engr.: BR+A Consulting Engrs --- Structural Engineer: Fox and Associates --- Materials Science Engineering & Nanotechnology Primary Road Access N ` Dumpste r Dumpst er Albert Small Bldg Site Storag e Chemistry Addition Site Trailers Site Plan --- Underpinning Required --- Relocation of Chilled Water Lines --- Traffic redirection MECH ENG Mechanical Engineering Bldg Mat Sci Chemistry Chem E Key Construction Fence --- Footprint New Pedestrian Route Temporary Transforme rs Seconda ry Road Access 1

2 --- Materials Science Engineering & Nanotechnology CM In-House Proposal: A CM is qualified to perform in-house building commissioning vs. hiring a 3 rd party commissioning agent --- Research Case Studies --- Benefits of CM In-House --- CM In-House commissioning department set-up guidelines --- CM In-House Plan --- Materials Science Engineering & Nanotechnology The basic purpose of building commissioning is to provide documented confirmation that building systems function in compliance with criteria set forth in the Project Documents to satisfy the Owner s operational needs Ensures a is: --- Designed --- Tested --- Installed --- Started Average Costs: (HVAC, Controls, Electrical) HVAC and Automated Controls System Electrical Systems Cost Less than 0.5% - 1.5% of Total Construction Cost Less than 1.5% - 2.5% of Mechanical System Cost Less than 1.0% - 1.5% of Electrical System Cost --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology All systems must be commissioned because all are integrated and a deficiency in one may result in the performance or failure of another. Benefits: o Reduced energy use o Improved indoor air quality o Improved occupant comfort o Improved environmental conditions o Improved system and equipment function o Improved building operation and maintenance o Improved building productivity o Smoother building turnover o Better start-up documentation o Better operator training and Owner knowledge of their systems Why Owners Commission Improve Comfort 25% Research 37% Utility Funding 41% Improve Client 53% Satisfaction Potential Energy Savings 80% Ensuring System Performance 81% --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology Benefits of In-House o Understand the construction schedule In-House Department set-up guidelines o Must remain a separate entity o Risk involved ensures an excellent building turnover o practices must be understood and practiced properly o Provide services on all building systems, not just controls o Members of the department must be certified commissioning agents o Qualified to gain LEED points o Department must consist of staff specializing in each building system o Extensive background on all building systems o Organized plan must be followed 2

3 --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology CM In-House Plan Virtual MEP Task 1: Planning Phase --- Develop Project Objectives --- Choose Team --- Develop Schedule Task 2: Submittal --- system submittals Task 3: Construction Inspections/Start-ups --- Develop pre-functional tests and checklists --- Inspections, site visits --- and attend system start-ups and tests Task 4: Functional Performance Tests --- Coordinate FPT and test plans --- Witness FPT --- Document FPT Results Task 5: O & M Manuals and Training Proposal: 3D models are more effective when coordinating MEP systems than traditional coordination methods. --- Research Case Studies --- Advantages of 3D MEP --- 3D MEP Process --- 3D MEP Model Checklist --- 3D Model Cost and Schedule Analysis --- Problems with 3D MEP --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology 3D MEP Advantages of 3D MEP Provides in One Drawing: --- Material Lists --- Fabrication Drawings --- Assembly Drawings o Problems can be solved in the early phases of design And construction o Multiple coordination plans can be viewed before selecting the most efficient --- Construction/Scheduling o Navigation through the model is possible allowing errors to be found o Plans can be tested before construction o Different views of the model can be seen --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology 3D MEP Process 3D MEP Model Checklist HVAC Subcontractor creates background for all other MEP Contractors Mechanical Subcontractor adds HVAC system Plumbing Contractor adds plumbing system Sprinkler Contractor adds sprinkler mains/branches Electrical Subcontractor adds main electrical feeds Finished drawings are reviewed by all contractors involved, the architect and the project manager` Conflicts are identified & documented by all parties Solution is developed & documented by all parties Meeting Level of Detail: The level of detail needs to be determined because items can be modeled in varying levels of detail. For example a piece of mechanical equipment could be modeled as a 3D box or to show all access point, switches, etc. When to complete 3D model: The sequence and timing of the model needs to be coordinated with the construction process, from design to turnover. Staff: Each person needs to understand the goals, the level of 3D modeling required, and the amount of information sharing needed. Design Background: The coordinate system, file name, layers, etc.. must be set up early in the design process. 3

4 --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology 3D Model Cost and Schedule Analysis Cost: 3D Coord. MEP Conflict Average Added Cost due to MEP Cost Savings Costs after 3D Conflicts in the Field (60% Prevented) Plan and Spec Hardly any $385,000 ($231,000) $154,000 Precon. Coord. (3 projects) Limited Preconstruction $200,000 ($120,000) $80,000 (4 projects) Full Preconstruction $150,000 ($90,000) $60,000 (4 projects) Design Build MEP $50,000 ($30,000) $20,000 (3 projects) Schedule: --- Total Hours Saved: Saves more than time, saves stress & conflict Problems with 3D MEP New to the Industry Not all contractors have the capability or knowledge of using 3D Cad Trades not using 3D CAD may not know how to read drawings on a computer --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology Underpinning Underpinning Proposal: constructability of underpinning system and determine factors leading to failure --- review --- CM role in underpinning process o Legal Battle --- Inadequate Designs --- Intersection of soil planes o Underpinning Tests --- Concrete Strength - Passed --- Tieback Tests - Passed --- Additional Tiebacks were installed to reinforce the system - Passed --- Materials Science Engineering & Nanotechnology --- Materials Science Engineering & Nanotechnology Factors Affecting Underpinning o Size and depth of excavation o Soil conditions o Ground Water o Surface drainage conditions Acknowledgements o The Penn State AE faculty and staff o Barton Malow Company o Weather and moisture conditions CM Role in Underpinning Installation o Safety o Know consequences of actions (have a plan) o Check installation o o The Foreman Group o My family and friends 4

5 --- Materials Science Engineering & Nanotechnology Questions? 5