This document summarizes a presentation on BIM model analysis from a multidisciplinary perspective. It discusses what BIM is and its benefits, including clash detection and 4D, 5D, 6D, and 7D analyses. It presents a case study of a residential apartment model and analyzes its information, missing information, inconsistencies, and clashes. It also discusses collaboration, COBie, current limitations, and recommendations for future improvements including better standards, training, and multidisciplinary teamwork.

1. MSc BIM & Integrated Design
BIM Model Analysis in
Multidisciplinary Perspective
Presented by:
Aravindh Rajendiran
Student ID: @00441255
Presented to:
Dr Paul Coates
Dr Jason Underwood

2. What is BIM?
It’s All about exchanging information with in the project and
collaboration between all team members.
Input
DWG
Point
Clouds
It’s NOT Technology
PDF
DGN
BIM Design model Output
Clash detection
Extracting BOQ
4D Construction
Sequencing
5D Cost Scheduling
6D Sustainability
&Energy
Analysis7D Facility management
Cobie spread sheet
Process/workflow

3. Proposed model and available information
Project Name : Residential Apartment (Pilot Project)
Location : Manchester
Project information
Geometric information
Material information
Interior details
Solar Analysis

4. Plans, Elevations & Schedule
Manufacturer details
• http://seek.autodesk.com/
Refer :
• http://bimobject.com/en
• http://www.nationalbimlibrary.com/manuf
acturers

5. Missing information :
Structural drawings & Reinforcement details
MEP details & coordination drawings

6. Inconsistent found in model:
• Architectural wall & column intersection
not modeled properly
• Clearance between suspended
ceiling and front door
• Room spaces are not assigned
properly

7. Clash Detection:
Hard clashes-492
Tolerance-0.01m
http://www.iglc20.sdsu.edu/papers/wp-content/uploads/2012/07/13%20P%20008.pdf
https://www.youtube.com/watch?v=gTGquTcmScU
• refers to components
that are closer than a
certain distance (a
minimum clearance)
from one another
Soft Clash: Hard clash :
 two objects
occupying
the same
space
No clearance
Refer :

8. 4D: Construction Sequencing
(Eastman, et al. 2008)
 http://web.stanford.edu/~fischer/research/4DCADModeling.pdf
Refer :
• allows project stakeholders to view
the planned construction of a facility
over time on the screen
 http://www.engr.psu.edu/ae/cic/publications/techreports/tr_051_wang_200
7_4d_modeling_in_education.pdf
• Improved site use planning and
coordination with ongoing operations
• Marketing purposes and publicity
Benefits:

9. Construction
Schedule
Linking into 4d software
and create selection set
4D model
construction
sequencing &
simulation
3d model
4D: Construction Sequencing

10. 5D: Cost Estimation
http://hc-qs.com/brochure/pdf/4-5%20BiM%20modelling.pdf
Refer :
(HC BIM QS) • construct a model from CAD
drawings, specifications and
other information available
• digitally measure geometric
information to produce
accurate quantities
• link the quantity information
with project specific Bills of
Quantities and Cost Plans
• create client specific reports
Revit model/IFC model Rib Itwo/5d model tool
• Link model and BOQ
Cost
estimation
Report

11. https://gbs.autodesk.com/GBS/Run?ProjectID=pLH5tTDUbhY%3d
6D: Sustainability & Energy Analysis:
Total annual Cost & Energy usage
Energy Carbon and
cost summary
Refer:
Electricity & fuel use

12. 7D:Facility management
Autodesk FM Desktop Black board salford
Refer :
https://bim.wikispaces.com/Facility+Asset+Management
• involvement at early stages to improve
operational performance.
CAPEX & OPEX

13. Real time tracking
Mosaic
http://www.openbim.org/case-studies/university-campus-facilities-management-
bim-model
7D:Facility management (Benefits)
Improved space managementIntegration with maintenance
management
Refer :
http://www.ifma-afc.org/docs/submissions/2012-04-BIM.pdf

14. BIM collaboration in Multi Disciplinary
Perspective
MV-BIM
• Upto 15% of the cost of a project
is lost because of rework and
avoidable collisions between
trades
• Work parallel instead of linear
• Bring visibility and control to shared
Information Models
• Immediately review the design progression
during development and track critical
decision making

15. Cobie:
Revit model
• Type parameters &
instance parameters
1.Adding Cobie information
using Revit add on CTC
2.Detailed Project
information for Cobie
• Classification types
Element comparison
• Adding all
required cobie
information to
the model
• Export model
into industry
foundation class
• Checking all
cobie data
information in
federated model
• Export cobie
data into excel
spread sheet
http://www.bimprospects.com/filelibrary/Presentations
%2026%20March/6-John-Sullivan.pdf
Refer :

16. Current Limitations and disadvantages
• Model analysis incomplete (Structural & Light analysis
etc.)
• Missing information ex: STRUCTURAL, MEP which
affect the analysis workflow.
• Lack of standards.
• Current Model is incomplete in Relation to “BIM”.
• Conflicts within used software's.

17. Recommendations for Future Improvements
• Well designed BIM model in design stage.
• Multidisciplinary teams could then collaborate
successfully with their project teams.
• Proper guidance & trainings before starting
project.
• Information & knowledge sharing

18. Visualization:
3D Perspective view3D Perspective viewInterior viewInterior viewNight viewNight view