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Integrated Design and Delivery Systems By Dr Zeeshan Aziz – licensed under the Creative Commons Attribution – Non-Commercial – Share Alike License http://creativecommons.org/licenses/by-nc-sa/2.5/
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ORBEE Learning Material Introduction to Integrated Design and Delivery Systems Lesson 4- BIM & Construction Project Management
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Lesson Plan Co-ordination problems in construction projects Using BIM for 4D Simulation Traditional scheduling methods and the need for 4D Simulation Using BIM for Quantity Take-Off and Construction Estimation
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Key Learning Outcomes To understand the need for construction production simulation To analyse key benefits of production simulation To comprehend various types of 4D applications
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Construction Co-ordination Problems AreaCo-ordination Problems Design No direct cost feedback on design decisions Coordination of trades Sub-Contractor Cost Missing / Incorrect Design Information Inability to reuse data for shop drawings Field rework required for prefabricated components Padding to compensate for risks Poor subcontractor work flow – “Starts and Stops” Inadequate quantity information for planning Lack of owner trust – difficulties in communicating cost and schedule issues Production control is based on subjective information Frequent starts and stops Estimating is time-consuming and occasionally inaccurate Construction Insufficient as-built project documentation Renovation, addition and demolition planning is time-consuming Facility Management Insufficient as-built project documentation Renovation, addition and demolition planning is time-consuming
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Using BIM for 4D Production Simulation Created by linking 3D BIM with Project Timeline Used to display both temporary and permanent components Referred to as product- process models
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KEY ADVANTAGES OF PRODUCTION SIMULATION
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Integration of Production and Process Model
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Using 4D for Macro and Micro Level Communication Using 4D at a Macro Level – Site Logistics – Staging Areas – Access routes and disruptions Using 4D at a Micro Level – Defining Construction Sequence – Identification of space-time conflicts
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CPM Scheduling A work breakdown structure, showing a complete list of all activities required to complete a project; Time duration for each project activity; Dependency between project activities; and The time (duration) that each activity will take to completion.
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Line of Balance (LOB) Uses Location as basis for Scheduling Ideally suited for activities involving repeated block of activities (e.g. high rise construction or road works) X-axis represents the timeline of the project, whereas the Y-axis identifies the work areas that identify a project.
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Limitations of Traditional Scheduling
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BIM Application Scenario
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Traditional Practice - Scenario
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BIM Cost Estimation – Application Scenario
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References and Learning Resources Middlebrooks, R.E. (2008). Sustainable Design Through BIM and Analysis. Heating / Piping / Air Conditioning Engineering, 80(10), 30- 34. Retik, A. (1993). "Visualization for decision making in construction planning." Visualization and intelligent design in engineering and architecture, J.J. Connor, et al., eds., Elsevier Science(New York, NY), 587-599. Seliga, C. (2007). “Revel Selects Synchro for $2 Billion Atlantic City Casino Project.” Prime Newswire June-2007, Coventry, England Sriprasert, E and Dawood, N. (2002), "Requirements identification for 4D constraint-based construction planning and control system", Conference Proceedings – Distributing Knowledge in Building, University of Teeside, Middlesbrough.
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Related Websites http://www.stanford.edu/group/4D/examples /examples.shtml http://www.stanford.edu/group/4D/examples /examples.shtml http://www.navisworks.com http://www.youtube.com/watch?v=EcHW9Dg Cb40&feature=related (Case Study – IntelliBuild) http://www.youtube.com/watch?v=EcHW9Dg Cb40&feature=related
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