An overview on the main issues of the building industry and how the disruptive trend of Building Information Modeling (BIM) is changing the way buildings are designed and approached in general. BIM models and energy simulations were showcased. Conference: Building Green 2013, Athens, GR

1. GREEN BIM
SUSTAINABILITY THROUGH INTEGRATION
Dimitrios Farmakis, BIM Consultant
MS Civil & Environmental Engineering,
Stanford University

2. AGENDA
17.00 – 17.20: Building Information Modeling (BIM)
– an Overview
17.25 – 17.30: Applications in a/e/c
17.35 – 18.20: Green BIM – workflow showcase
18.20 – 18.30: Q&A

3. THE PROBLEM…
PROBLEM(S) IN A/E/C

5. Conceptual
Schematic
Construction
& Operation
Drawings
Development
V.E
: ARCHITECTURE
: MEP
: ENERGY
: STRUCTURAL
V.E
: Value Engineering
: Scope reduction

6. PROBLEM I:
… INFORMATION RECREATION
… DECISION LATENCY
… COST
… RISK

7. Global CO2 emissions
32%
Buildings
Other
68%
Global Energy Use
40%
47%
60%
Buildings
53%
Other
CONSTRUCTION &
DEMOLITION

8. PROBLEM II:
...
ENERGY IN BUILDINGS
… ENVIRONMENT
… COST

9. COLLABORATION
ACCESS
PEOPLE
INTEGRATION
INFORMATION
TRANSPARENCY
PROCESS

11. SO…
WHAT IS
BIM?

12. P
R
Schematic
Conceptual
V.E
O
C
E
S
S
V.E
V.E
V.E
: ARCHITECTURE
: MEP
: ENERGY
: STRUCTURAL
Construction
& Operation
Drawings
Development
V.E
: Value Engineering
: OPTIMIZATION

13. How Integrated Design & analysis Decreases Costs
Bid
Build
Operate
Design/
Effort
Plan
1.
2.
3.
4.
Pre-design
Schematic
Design
design
Development
Construction
Documentation
Procure
Construction
Administration
Ability to impact cost
Cost of design changes
Traditional design
process
Preferred design
process
Operation
Phases of Building Cycle
Traditional versus BIM/IPD workflows relative to design effort and cost of change over a
project timeline
Source: Building Information Modeling: A Strategic Implementation Guide for Architects, Engineers, Constructors,
and Real Estate Asset Managers, p 104.

14. APPLICATIONS I:
ARCHITECTURE

15. APPLICATIONS II:
ENERGY

16. APPLICATIONS III:
OTHER DISCIPLINES

17. Documentation
Analysis
Construction
Analysis
Detailed
Design
green
Conceptual
Design
BIM
Construction
Logistics
Renovation
Operation &
Maintenance

18. Basic Workflow
Conceptual
design
Pre-design
•
•
Surrounding
Environment
Basic
Geometry
•
•
Mass
model(s)
•
Orientation
Location &
Climate data
Simulate
•
Visualize
Goals
•
•
•
•
“Problematic
” Areas
•
•
Results
Strategies
Sun settings
Energy
Settings
Analyze
Design changes
Feedback

19. sustainable buildings
are designed by People
… not software
Good looking model ≠
useful information…
G.I.G.O. – garbage in
garbage out...

20. “essentially all models are
wrong… but some are useful”
- george e.p. box