【BIM】CCBM 學習筆記 (Part 8) - 建築資訊模型 Building information modeling (BIM) - BIM Uses + Processes (Definition + Design Stage + Construction + Handover + Operation + Maintenance Stages) + Commercial Issues + Data Quality Control & Assurance Across Various Stages

BIM Uses + Processes (Definition + Design Stage)

BIM Execution Plan

Pre-contract BIM project execution plan

• DELIVERED PRIOR TO APPOINTMENT OF MAIN CONTRACTOR OR DESIGN TEAM

Post-contract BIM project execution plan

• DELIVERED FOLLOWING APPOINTMENT OF MAIN CONTRACTOR OR DESIGN TEAM

Similarity between Pre and Post

1. Project information
2. Information required by the EIR
• Major project milestones
• PIM delivery strategy
• Existing legacy data use (defined by EIR)

BIM Uses in Planning and Design Stage

Plan

• Design Authoring
• Design Review
• Existing Condition Modelling
• Site Analysis (Optional)
• Cost Estimation
• Sustainability Evaluation (Optional)
• Space Programming (Optional)

Design

• Design Authoring
• Design Review
• Existing Condition Modelling
• Site Analysis
• 3D Coordination
• Cost Estimation
• Engineering Analysis
• Facility Energy Analysis (Optional)
• Sustainability Evaluation
• Space Programming
• Phase Planning (4D)
• Digital Fabrication
• Drawing Generation

 Construction 

• Design Authoring
• Design Review
• Existing Condition Modelling
• 3D Coordination
• Cost Estimation
• Engineering Analysis
• Facility Energy Analysis (Optional)
• Sustainability Evaluation
• Phase Planning (4D)
• Digital Fabrication
• Drawing Generation
• Site Utilization Planning
• 3D Control and Planning
• As-Built Modelling
• Project Systems Analysis
• Maintenance Scheduling
• Space Management and Tracking
• Asset Management

BIM Meetings

• Client and stakeholder meetings
• Virtual Design Reviews
• BIM kick-off Meeting / BIM coordination meeting
• Information Management Workshops
• Design Team Meetings

BIM Uses in the Construction Stage

• 2D deliverables still form part of the work undertaken
• BIM should be updated to reflect any changes documented in 2D
• Data capture should occur within the PIM including construction for facilitate the handover to operators

What is Data Exchange?

• Strategy for Data Exchange Established
• Dates and processes should be noted in the EIR
• PIM delivery schedule within EIR and subsequently in BEP
• Task Team Checks
• Information Manager Checks
• Updates to Information Models

Handover Stage

• Models are to be updated across the Construction Stage in order to be complete at the PIM to AIM Transfer Point

Validation Data Construction

All final BIM deliverables developed for the project shall become the property of the Appointing Party / Client and shall transfer back to the Appointing Party / Client on the completion of the project. This should be defined within the Project protocol and applied to each appointment or contract.

As-Built Information Model including native format, open format and required format for integration with the Appointing Party’ AM/FM shall be submitted.

Operation and Maintenance Stage

• An Asset Information Model Should be updated during the Operational Phase from time to time.

Details of the Post-Occupancy Evaluation Process

Commercial Issues + Data Quality Control & Assurance Across Various Stages

BIM Value & ROI

BIM value of organizational level

• Productivity
• Quality
• Risk Reduction
• Reduced Costs

ROI metrics

• Financial Metrics
• Schedule Metrics
• Safety Metrics
• Indirect Project Metrics
• Internal Benefit Metrics

ROI on BIM

• BIM investment: For small organizations, to implement BIM, their initial cost focus on software, hardware and training, which makes the ROI for their years to be negative or breakeven.
• Return: The percentage of ROI is usually bigger for the contractors than for design professionals
• Long-term investment: The highest ROI on BIM investment is reported by users with many years of experience in BIM projects, the highest level of BIM implementation and best skills.

BIM Implementation in the Organization Level

• Stage one: Business audit
• Stage two: risk analysis
• Stage three: making a business case for BIM implementation
• Stage four: changes required to existing business
• Stage five: strategic planning for implementation
• Stage six: implementation

Information technology requirement for BIM

Software requirements:

Hardware requirements:

Manpower management for BIM

• Staff plan
• Staff recruitment
• Staff training strategy

Data Quality Control & Assurance Across Various Stages

• System Checking
• Model Audit
• Model Checking
• Audit Report