Martin Fischer - Hochschule Konstanz · Prototyping tool) Issue and resolve 74 ¶V 7H F K Q LF DO Q...
Transcript of Martin Fischer - Hochschule Konstanz · Prototyping tool) Issue and resolve 74 ¶V 7H F K Q LF DO Q...
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Construction Technology – Global
Trends
Additional Roles:
• Senior Fellow, Precourt Institute for Energy
• Lead, Building Energy Efficiency Research, Precourt Energy Efficiency
Center (PEEC)
• Affiliated Faculty, Woods Institute for the Environment
• Affiliated Faculty, Emmett Interdisciplinary Program in Environment
and Resources (E-IPER)
• Advisory Professor, School of Economics and Management, Tongji
University, Shanghai
• Visiting Professor, School of the Built Environment, University of
Salford, UK
Martin Fischer Professor, Civil and Environmental Engineering
and (by courtesy) Computer Science
Director, Center for Integrated Facility Engineering (CIFE)
http://www.stanford.edu/~fischer
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How much do you
want to earn per
hour?
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More than 11.9
cents?
1 computing hour in
the cloud costs 12
cents.
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What can you do
with 3.5 Million data
points per day for a
building?
(Y2E2 Building
Stanford)
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Or 500 Million data
points per day for a
campus?
(Microsoft Puget
Sound)
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Reversing our climate
change trajectory
http://www.grida.no/graphicslib/detail/historical-trends-
in-carbon-dioxide-concentrations-and-temperature-on-
a-geological-and-recent-time-scale_a210#
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Huge changes are required to lower carbon footprint: Predicted impact of global warming
7 Source: Sustainable Energy — without the hot air:
MacKay, 2008, based on Baer and Mastrandrea (2006)
US: ~24
tCO2/ y per
person
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Global Trends that will affect
Construction dramatically
• Computing is (almost) free
• Computing is mobile
• Data are abundant
• “What you see is what you get” is today’s
good practice
• Projects must be economically,
environmentally, and socially sustainable
All this is normal for today’s high school
students
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A good design …
• is buildable
• can be operated efficiently
• makes the users of the facility productive
• enhances its environmental and social
context
• and contributes to learning how to do it
even better next time.
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Reasons Analysis
Directive/Plan: 2524
(23%)
Labor: 2118 (19%)
Prerequisite: 1434 (13%)
Material: 1395 (13%)
Weather: 1144 (10%)
Equipment/Plant: 1058
(10%)
Information: 676 (6%)
Site Access: 563 (5%)
Unforeseen Site
Conditions: 73 (1%)
Safety/Incident: 0 (0%)
SPS 2001-2005
Is this the best we can do? 1,000s of construction activities don’t get done as scheduled
(practice on well-managed projects)
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CIFE Development and Background
• 100% funded by industry
– Building owners
– Design and construction companies
– Software and hardware vendors
– Seed projects and implementation
– Leveraged with government and other
funding
• 1988-2000
– Building Information Modeling (BIM)
• 2000-2010
– Virtual Design and Construction
(VDC)
• 2010+
– Integrated Facility Engineering
– Breakthrough performance
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The CIFE community (industry, academia) invents the next practice together
Practice
Research
Education
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ICE BIM+ Process
Current State Process, T5 Rebar Detailing for Construction
De
sig
nM
an
ufa
ctu
reE
ng
ine
erin
g
Release CAD
dwg, rebar
schedule (*.CSF)
in Documentum
Document
control delay
(1 week)
Preliminary
designGA drawings
Refine RC details
and concept for
buildability/
detailing
Use model to
develop and
communicate
methods
Prepare RC detail
drawings
(drafting)
Check and
coordinate detail
drawings
CAD check
(1d/dwg)
Check against
engineering calcs
(.5d /dwg)
Independent final
check & sign off
(2 weeks)
Building control
check & sign off
(BAA, time?)
Release paper P4
dwgs & bar
bending
schedules
Rebar factory
starts bending
Pre-assembly
Ship to site
Draft spec
Comment on
spec
Update spec Release spec
Model rebar
component (Use
digital
Prototyping tool)
Issue and resolve
TQ’s (Technical
Queries)
AutoCAD CAD RC IDEAS Arma +
Design input/
changes
Technology:
Detailed
engineering
design
information
Site assembly
Preliminary drafting
2 weeks
Back drafting
1 week
Checking
2 weeks
Document control
1 weekTimeline:
NOTE: Drawings are batched into sections-
then subdivided into building components.
Each component is an assembly package,
e.g. rail box floor, wall, etc.
The number of drawing sheets per building
component vary depending on the work. On
ART for example, each component may
consist of 8-15 GA drawings and 8-15 RC
detail drawings.
All of the GA drawings are complete -
pend ing changes f rom other des ign
disciplines
NOTE: Design changes
during detailing (from:
architecture, baggage,
s y s t e m s , e t c . ) a r e
upsetting RC drawing
development.
Other / None/
Unknown
Preliminary RC
detailing
Iterative
process
Consists of:
engineering
calculations,
sketches, etc.
Most of the checking
process is done
concurrently with RC
detail development.
BAA building control
accepts the opinion
of the independent
design check - and
does not perform a
check of its own
Asse
mb
ly
Existing Process - 6 weeks
Client/Business Objectives
Project Objectives
Virtual Design and Construction (VDC)
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Combining data and visualization
Visualization
Social Interface with Stakeholders
Conceptual project planning & design
Design
Procurement
Construction
Start-up
Operations
Data
Interface with Engineering and Project Control and Management Systems
14 (c) 2012
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Past Present Future
• Yesterday’s practice: YCASWYG You can’t always see what you get
• Today’s practice: WYSIWYG What you see is what you get
• Next practice: WYMIWYG What you model is what you get }
performance Scofield 2002
(c) 2010 15
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High Performance
Building
Integrated Building Systems
(Product)
Integrated Process
Integrated Team
(Organization)
Integrated Information
(BIM+)
Value (Metrics)
Production Management
Collaboration Colocation
(ICE)
Simulation Visualization
Agreement/Framework
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
What it looks like recently* – photo superimposed on model
Photo elements are grey, model elements are in color.
Sutter Medical Center Castro Valley, CA, USA – $320 Million
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
Virtual Company
Design the “Big
Room”
Design Assist
Process
Virtual Building
Tools
Collaborative Planning
Process Metrics
Big Room
Target Costing
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
PUBLIC, TRANSPARENT
PERFORMANCE METRICS
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
Team organized to work together with BIM
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
Very Detailed Process Mapping –
Every 2 weeks
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
Everything above 1.0 cm was modeled in 3D
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
Electrical underground L00 slab on grade to model
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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PRESENTATION FOR:
BIM VISION, STRATEGY AND IMPLEMENTATION CONF., ABU DHABI| DECEMBER 13-14,
2011
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BIM LESSONS LEARNED DISCUSSION WITH ARUP | MARCH 21 , 2011
Prefabricated Bathrooms
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BIM LESSONS LEARNED DISCUSSION WITH ARUP | MARCH 21 , 2011
Actual Fabricated Panel Installation
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Just imagine a task list.
You can also look at it as…
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…a floorplan.
Reporting a new task is very easy, just
tap the location and a pin appears.
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Then, just type a little text and send it.
It’s immediately shared around the
entire site.
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It’s too long to explain it in a few words?
What about you snap a picture or draw
a little sketch over the floor plan.
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SCOPE
(1)Façade
(2)MEP System
OBJECTIVES
(1)Minimize total cost of
ownership
(2)Minimize carbon footprint
(3)Minimize energy
consumption
VARIABLES
(1)Building Orientation
(2)Glazing type
(3)Glazing percentage by
façade
(4)Shading elements by
facade
DESIGN SPACE
Possible design
configurations: TBD
Design Problem 1
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BUILDING INFORMATION
MODEL
ENERGY SIMULATION
LIFE-CYCLE ASSESSMENT
GENETIC ALGORITHM
material quantities
design variables
analytical model
DPROFILER eQUEST
energy consumption
cost carbon
footprint
MS Excel SIMAPRO
ModelCenter
Method 2
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OPT 2+4: LCC VS. ENERGY COST
43
= Pareto Optimal Design
= Baseline Design
= Pareto Optimal Design = Baseline Design
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OPT 1: PARALLEL COORDINATES PLOT
44
= Pareto Optimal Design = Baseline Design
Bu
ildin
g O
rien
tati
on
(d
eg)
No
rth
Faç
ade
Gla
zin
g %
Sou
th F
açad
e G
lazi
ng
%
East
Faç
ade
Gla
zin
g %
Wes
t Fa
çad
e G
lazi
ng
%
An
nu
al E
ner
gy
Co
st (
USD
)
0
180 70 70 70 70 1.09E5
9.02E4 30 30 30 30
= Baseline Design Configuration
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Industry Case Studies
(with Benjamin Welle)
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Next Steps….
Application of Artificial Intelligence
(Knowledge-Based Systems) and
Distributed Computing to Daylighting MDO
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Making Green Buildings | Martin Fischer 47
6 designers work for information (information/data management)
4 designers design
Why current practices aren’t green
Flager, F. and J. Haymaker (2007). “Comparison of Multidisciplinary Design, Analysis and Optimization Processes in the Building Construction and Aerospace Industries.” 24th International Conference on Information Technology in Construction. I. Smith. Maribor, Slovenia: p. 625-630
Is this the best we can do?
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January 22, 2012 48 © 2012 by Reid Senescu
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Plumbing 17668 3847 8512 21700 20984 4366 4824 6120 2762 651 112 52 90 132 230 2 0 129 0 52 47 198 29
General Contractor 13427 12220 10948 18395 22742 4279 4874 6350 3005 598 1115 640 242 992 575 197 0 220 42 92 249 108 104
Electrical Subcontractor 12753 5462 11624 17357 16480 3877 7478 5925 2426 711 1861 286 926 1076 207 340 0 49 219 476 107 306 40
Project Architect 55 981 159 1307 399 25 2366 681 154 100 228 266 535 67 192 194 0 386 99 70 77 146 32
Structural Engineer 119 410 36 1319 1258 27 460 725 10 15 3 146 59 27 39 1 0 86 0 63 46 22 33
HVAC Subcontractor 5445 1711 3584 7097 6226 1723 3348 2242 1142 201 28 6 49 154 7 3 0 0 0 0 5 78 0
MEP Designers 372 698 139 4108 1734 64 1298 2134 25 67 117 0 1103 9 0 82 0 7 130 0 1 161 6
Project Architect (Interiors) 26 184 37 972 326 14 143 293 28 0 13 145 70 0 99 0 0 99 100 0 96 50 35
Fire Protection 3934 835 2421 5941 7009 1090 26 1591 878 142 1 0 0 46 0 0 0 7 0 0 8 0 0
Pneumatic Tube 998 666 936 2023 1433 294 6 527 235 97 84 36 0 189 13 0 0 6 0 0 7 0 7
IT Consultant 0 196 49 3445 734 12 76 1284 0 0 77 1 5 0 0 3 0 66 0 1 0 1 20
Misc. Metals/ Stairs 107 1017 134 497 66 46 5 129 33 8 30 24 60 0 1 75 0 4 4 0 1 21 9
Medical Equipment Designer 0 6 0 379 0 0 0 107 0 0 0 0 12 0 0 0 0 0 0 1 0 0 0
Equipment Connections 144 226 153 22 183 71 4 1 31 1 0 0 0 185 0 0 0 4 0 0 0 0 0
GFRC & Precast 49 120 105 160 438 22 1 683 18 0 0 0 0 2 124 0 0 33 0 0 4 0 32
Equipment Supplier 4 55 9 469 213 66 591 246 52 0 1 0 0 0 0 19 0 0 0 0 0 0 0
Printing 15 129 0 1415 3 27 394 1 2 0 40 0 120 0 70 0 0 45 6 0 0 4 0
Site Civil Engineer 126 53 60 139 255 9 1 260 28 0 4 5 0 0 4 0 0 12 0 0 4 0 30
Lighting Consultant 0 119 0 1043 0 0 0 203 0 0 0 0 60 0 0 0 0 0 4 0 0 0 2
Elevator Consultant 0 37 0 436 142 0 0 181 0 0 0 0 0 0 0 0 0 0 0 9 0 0 0
Glass & Glazing Structure 0 53 13 181 372 0 1 96 2 0 1 2 0 0 4 0 0 1 0 1 121 0 1
Foodservice Designer 0 2 0 58 0 0 0 59 0 0 0 0 0 0 0 0 0 0 0 0 0 29 0
Landscape Architect 0 141 0 185 71 0 0 290 0 0 1 0 0 0 2 0 0 45 10 0 0 0 59
# of interactions
0
1 to 4 1
5 to 26 5
27 to 96 27
97 to 386 97
387 to 22742 387
Legend
preliminary results from 403,607 digital interactions during the design of a California hospital using Bentley Projectwise (October2010 to November 2011)
# of files written by #
of
file
s re
ad b
y
Team-Information Interaction Sequence (TIIS) for 1 year
Core Disciplines exchanged much
information
Many disciplines exchanged little
information with each other
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January 31, 2012 49 © 2012 by CloudLeaps, Inc.
Opaque Workflows Inhibit Learning from Past Projects
*Khanzode and Fischer (2000), “Potential Savings from Standardized Electronic Information Exchange: A Case Study for the Steel Structure of a Medical Office Building,” Stanford University, CIFE TR 121.
Repeating workflow mistakes costs companies money, time, and reputation.
Project Manager
On my last two projects, this mechanical contractor never looked at the column layout!
air duct
column
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Technische Universität München • Computational Modeling and Simulation Group
Integration of Design
and Simulation
Comparison of the simulation
runs shows that the
evacuation might become
critical in the case of the
2 staircases option
2 staircases 3 staircases
15s
30s
60s
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I have made all my
generals out of mud. Napoleon
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High Performance
Building
Integrated Building Systems
(Product)
Integrated Process
Integrated Team
(Organization)
Integrated Information
(BIM+)
Value (Metrics)
Production Management
Collaboration Colocation
(ICE)
Simulation Visualization
Agreement/Framework