GREEN BIM

SUSTAINABILITY THROUGH INTEGRATION

Dimitrios Farmakis, BIM Consultant

MS Civil & Environmental Engineering,

Stanford University

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

THE PROBLEM…

PROBLEM(S) IN A/E/C

Conceptual Schematic Development Drawings

Construction

& Operation

: ARCHITECTURE

: ENERGY

: MEP

: STRUCTURAL

V.E : Value Engineering

: Scope reduction

V.E

PROBLEM I:

… INFORMATION RECREATION

… DECISION LATENCY

… COST

… RISK

40%

60%

Global Energy Use

Buildings

Other53%

47%

CONSTRUCTION &

DEMOLITION

32%

68%

Global CO2 emissions

Buildings

Other

PROBLEM II:

... ENERGY IN BUILDINGS

… ENVIRONMENT

… COST

INTEGRATION

COLLABORATION

TRANSPARENCY INFORMATION

PEOPLE

PROCESS

ACCESS

SO…

WHAT IS BIM?

Conceptual Schematic Development Drawings

Construction

& Operation

V.E V.E V.E V.E

: ARCHITECTURE

: ENERGY

: MEP

: STRUCTURAL

V.E : Value Engineering

: OPTIMIZATION

P R O C E S S

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.

Design/

Effort

Phases of Building Cycle

Pre-design Schematic

design

Design

Development

Construction

Documentation

Procure Construction

Administration

Operation

Plan Bid Build Operate

1. Ability to impact cost

2. Cost of design changes

3. Traditional design

process

4. Preferred design

process

How Integrated Design & analysis Decreases Costs

APPLICATIONS I:

ARCHITECTURE

APPLICATIONS II:

ENERGY

APPLICATIONS III:

OTHER DISCIPLINES

BIM

Detailed

Design

Analysis Documentation

Construction

Analysis

Construction

Logistics

Operation &

Maintenance

Renovation

Conceptual

Design

green

Pre-design Conceptual

design Simulate Visualize

• Surrounding

Environment

• Location &

Climate data

• Goals

• Sun settings

• Energy

Settings

• Analyze

• Results

• “Problematic

” Areas

• Strategies

• Basic

Geometry

• Mass

model(s)

• Orientation

Design changes

Feedback

Basic Workflow

sustainable buildings

are designed by People

… not software

Good looking model ≠

useful information…

G.I.G.O. – garbage in

garbage out...

“essentially all models are

wrong… but some are useful”

- george e.p. box