Ibbs_Lectures 20-23_Planning Scheduling Control_11 4 11

Ibbs_Lectures 20-23_Planning Scheduling Control_11 4 11 -...

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CE 167 Lectures 20-23 Planning, Scheduling, Controlling Professor William Ibbs 1
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2 Project Planning Issues Define scope of work Identify milestones and constraints Determine work methods and resources Define activities Estimate durations and resource requirements for each activity Establish dependencies and logic Calculate critical path, starts, finishes and floats Level resources Review and revise Implement and start work Check and update schedule as needed
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Example of a Work Breakdown Structure 3
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4 Scheduling 3.1 Purposes of Schedule To serve as an effective project control tool. Ensure proper planning and execution of work Establish a standard for judging satisfactory work progress Assist in monitoring progress Evaluate progress payment requirements
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5 3.Scheduling 3.2 Purposes of Scheduling Calculate completion date. Calculate start or end of a specific activity. Predict cash flow. To expense and adjust conflicts between trades or subcontractors. Improve work efficiency. Evaluate changes.
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6 3.Scheduling 3.3 Scheduling Process Kickoff meeting List activities Activities scope Preferred activities duration Preferred logic and sequencing Preferred schedule Check with project criteria Resource loading Adjust schedule and check with project criteria Review Signoff and issue Yes Yes No No
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7 Bar Chart Scheduling 3.5 Scheduling Methods 3.5.1 Bar Charts Definition Graphic representation of project activities shown in time-scaled bar line with no link shown between activities Advantages Good for project overview and milestone representation Simple to develop and present Can be colored or shaded to show progress Disadvantages Logic difficult to show PROJECT MILESTONE SCHEDULE POWER VENTURES INC.- DESIGN─CONSTRUCTION PROJECT 1986 1987 1st 2nd 3rd 4th 1st 2nd 3rd 4th DESIGN Conceptual Design Detailed Design As-builts PROCUREMENT Long Lead Components Other Major Components Installation Materials CONSTRUCTION Site Preparations Excavations Foundations Mechanical Components Electrical Components Piping Systems Wiring Systems START-UP Component Checkout Systems Checkout Acceptance Testing Punch List Work
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8 Barchart Scheduling 3.5 Scheduling Methods 3.5.1 Bar Charts Types Fenced Bart Chart Rolling Production Schedule Short-Interval COL 1-7 COL 7-14 COL 14-21 Excavate Footings COL 1-7 COL 7-14 COL 14-21 Form & Reinforce Footings COL 1-7 COL 7-14 COL 14-21 Place Footings Time 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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Scheduling Activity Description Duration Successor A Move on site 1 B B Excavate Grade Beams 5 D C Build Forms 3 D, E D Install Reinforcing Steel 4 E E Install Waterstop 3 F F Place Concrete 2 - 9
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10 CPM Scheduling 3.5 Scheduling Methods 3.5.2 The Critical Path Method (CPM) Definition Activity-on-Arrow 10 20 30 40 50 A B C d E D F
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11 CPM Scheduling 3.5 Scheduling Methods 3.5.2 The Critical Path Method (CPM) Definition Activity-on-Node A B C D E F
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12 CPM Scheduling
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This note was uploaded on 01/06/2012 for the course CIVIL AND 167 taught by Professor Ibbs during the Fall '11 term at Berkeley.

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Ibbs_Lectures 20-23_Planning Scheduling Control_11 4 11 -...

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