cee320: seminar on integrated facility engineering...
TRANSCRIPT
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CEE320: Seminar on Integrated Facility Engineering:
Introduction
Martin Fischer, Instructor
Big Idea: Design organizations and processes that make building projects sustainable. Use the computer to model, analyze, and visualize project alternatives.
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Agenda
• Case examples for 3 levels of VDC• A challenge for your
– For this quarter– For your time at Stanford– For your career
• Acronyms:– VDC: Virtual Design and Construction– POP Modeling: Product, Organization, Process
Modeling
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Design-Construction Practice à Goals
>= 50% of supply and sales
SomeGlobalization
Better: > 20% better than baseline
PoorSustainability
Good – betterGoodSafety
+- Very small+- BigFunction
+- 1-5%+- 5-30%Cost
1 y Design< 6 mos Construct
+- 1-5%
1-6 y Design~18 mos Construct+- 5-100%
Schedule
Goal: 2015Practice: 2004
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Will we get there with current practice?
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Construct in 6?
Photos Courtesy Fluor
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CIFE Interactive (iRoom)
• Multiple screens• Multiple views
– Product, Organization, Process
– Function, Form, Behaviors
• Unified, yet flexible control– Multiple screens,
applications
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Vision for Civil Engineering• Design
– Buildings, and– Corresponding processes and organizations
• For– Best use by today’s and future users
• With– Most efficient use of resources
• Considering– The triple bottom line: economy, ecology, equity
• Using computational methods– To model, simulate, analyze, and visualize the design and
its fitness for purpose• To
– Communicate design options to all relevant stakeholders,– And generate a clear execution plan
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HOW: VDC Levels1. Visualization (assume manual integration)
•Routinely model and visualize all “expensive” elements of the product, organization and process
•Get input from all stakeholders when it matters•Manage with model-based methods• Incrementally enhance current business goals•Requires (possible with) project justification
2. Integration (computer based)•Product, organization & process models “interoperate”, i.e.,
notify, highlight, control, propagate, parameterize•Single data entry • Incrementally enhance business goals•Requires corporate multi-project support
3. Automation•Automated design and (CNC) manufacturing•Do high-quality work really fast all the time•Enables breakthrough project performance •Requires corporate multi-project support
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Disney’s California Adventure™: We’ll just change it later.
“Through 4D modeling we were able to visualize concurrent activities at a macro level.”Project Manager, Owner
4D model courtesy of WDI R&D, Glendale, CA
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How to build the roller coaster?
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4D model of Paradise Pier
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Benefits of 3D/4D models on Paradise Pier• Preconstruction
– Unprecedented stakeholder involvement (400 in 2 months)
– More precise specifications
• Bidding– Bids within 2% of each other– Contractors understood scope and challenges
within 48 hours, could use rest of time to work on bid
• Construction– Contributed to reduced change orders (with
potential for further reduction)
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Sharing of building information models (product model exchange) during schematic design of HUT600
Mechanical Designer
StructuralEngineer
ArchitectGeneral Contractor
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Design and Analysis Tools in HUT600 Project
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15Calvin Kam / CIFE - Stanford University
Decision Support by Visualization and VR Technology
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displacement cooling mixed cooling
Am I selecting the right systems?
Virtual building model enabled CFD simulation provided the decision basis to select the more expensive displacement cooling system.
Snapshots courtesy of Granlund, Helsinki, Finland
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Parametrically designed and detailed restrooms for refurbishment projects at Heathrow airport
Snapshots courtesy of MACE, London, UK
How long will the restrooms be out of commission?
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Automation -> prefabrication -> quality & economy
Construction: 8 wks -> 3.5 wksDesign time/effort reduced by 75-85%
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POP Modeling and Visualization
• Product Model 3D Model (ADT/ArchiCAD)
• Process Model
• Organization Model }} SimVision Model
• Product + Process Model 4D Model (CP4D)
3D ADT/ArchiCAD SimVision CP4D
Schedule (P3, MSP)
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Stanford CEE 243 mini-internships
• Obayashi– Tokyo main train station track move
• Swinerton– Template hospital
• Walt Disney Imagineering– Demolish, rebuild Space Mountain
• Webcor– Roof construction for new Renzo Piano
Academy of Sciences building
• CCC– Ammonia Plant
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Method to Achieve Breakthrough Goals
Controllable factors - Visualization phase:– Modeled Scope: VDC models to build; factors to consider– Managed Scope: model-based management methods– Organization design strategy– Coordination activity– Prediction basis: computer-based models– Design versions
Controllable factors - Integration phase:– Integration focus: VDC models
Controllable factors - Automation phase:– Automation focus: design, fabrication tasks
àMeasurable process improvement– Field material delivery– Decision latency (Decision-making promptness) – Response latency (Decision-making no earlier than necessary)– Field-generated Requests for Information– Rework volume
à2015 Breakthrough goals