BIM Introduction for QS Practitioners. Invited Presentation

(1)

Publisher’s version / Version de l'éditeur:

Questions? Contact the NRC Publications Archive team at

[email protected]. If you wish to email the authors directly, please see the

first page of the publication for their contact information.

https://publications-cnrc.canada.ca/fra/droits

L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site

LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB.

Ontario Institute of Quantity Surveyors, Professional Development Seminar: 10

April 2012, Toronto, ON [Proceedings], 2012-04-10

READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.

https://nrc-publications.canada.ca/eng/copyright

NRC Publications Archive Record / Notice des Archives des publications du CNRC :

https://nrc-publications.canada.ca/eng/view/object/?id=db60ad1d-700c-457d-8736-a821a3712749

https://publications-cnrc.canada.ca/fra/voir/objet/?id=db60ad1d-700c-457d-8736-a821a3712749

This publication could be one of several versions: author’s original, accepted manuscript or the publisher’s version. /

La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version

acceptée du manuscrit ou la version de l’éditeur.

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at

BIM Introduction for QS Practitioners. Invited Presentation

(2)

BIM Introduction for QS

Practitioners. Invited

Presentation

Dickinson, J.K.

IRC-ORAL-1118

A version of this document is published in :Ontario Institute of Quantity Surveyors, Professional Development

Seminar, Toronto, ON, April-10-12

The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international

agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without

written permission. For more information visit

http://laws.justice.gc.ca/en/showtdm/cs/C-42

Les renseignements dans ce document sont protégés par la Loi sur le droit d’auteur, par les lois, les politiques et les règlements du

Canada et des accords internationaux. Ces dispositions permettent d’identifier la source de l’information et, dans certains cas, d’interdire la

copie de documents sans permission écrite. Pour obtenir de plus amples renseignements :

http://lois.justice.gc.ca/fr/showtdm/cs/C-42

(3)

(4)

BIM Introduction for QS

Practitioners

John Dickinson, PhD, PEng

Outline



NRC and NRC Construction



John Dickinson

What is BIM?

BIM at Work

BIM and the QS

Getting

information out

(5)

NRC Construction



NRC

• Over 90 years old

– IRC, over 75 years

• Over 4200 full time employees

• Over 1440 guest workers



NRC Construction Portfolio

• 250 employees, 50 visiting workers

• Locations: Ottawa, London, Regina

• Building Envelope & Structure, Codes and Evaluation, Indoor

Environment, Fire Research, Urban Infrastructure

• 5 programs expected to start this year (re-org)

Slide 3 April 10/2012 - OIQS GTA Chapter

Speaker

John Dickinson PhD, PEng



Bachelors Applied Mathematics, Queen’s University



Masters Scientific Computation, Waterloo



Doctorate Mechanical Engineering, UWO



9 years in manufacturing

– modelling, simulation, integration

(6)

What is BIM?

Slide 5

What is BIM?

BIM at Work

BIM and the QS

Getting

information out

of the model

April 10/2012 - OIQS GTA Chapter

BIM

Create

Use

Maintain

Models

ht tp: // ee td ne w s.lbl .gov/ n l0 3 /im a ge s/ bl is s-spi ra l.png

Asti.com

Physical

Functional

Relational

Semantic & Digital

Open Standards

(7)

BIM Definition

Slide 7

A Building Information Model (BIM) is:



a digital representation of physical and functional

characteristics and relationships



a lifecycle information collection point



for collaboration by different stakeholders at different

phases



focused on saving resources

• time, money, materials



founded on open standards for interoperability

http://www.buildingsmartalliance.org/index.php/nbims/about/

CAD vs. BIM



2D or 3D



Lines



Contextual information

not standardized



Layers, if done

properly



Robust exchange

standards



3D or more



Objects &

relationships



Context



Well-defined collection

of facility data



Machine interpretable



Traceability, ownership

(8)

GIS vs. BIM



GIS

– since 1854



Geographic model

with information



Spatial context



Lagging on 3D, curves



BIM

– since 1987



Information Model

about a Building



Not a building model

with information



Scaling issues

Slide 9

Complementary!

Image: Tom Strong, EllisDon

http://flatrockgeo.com/gis-consulting/

Communication

(9)

Coordination



Shared models:

• virtual coordination

• prefab with confidence

• less rework / site fixes

• job sequencing

• contractor schedules

• materials management

• minimise tool time wastage

Slide 11

Image: Tom Strong, EllisDon

more rapid delivery /

higher quality

(10)



Growing complexity



More requirements:

• Regulations

• LEED, Green Building,

Passive, …



Bigger projects



Less time



Long-term perspective

• Public facilities

Drivers of BIM

Communication

Coordination

Collaboration

Waste

2004 NIST report

(Cost Analysis of Inadequate

Interoperability in the U.S. Capital

Facilities Industry)



$15.8B/y lost due to

poor interoperability

• 1-2% of total revenue



2/3 during operations

and maintenance

http://www.bfrl.nist.gov/oae/publications/gcrs/04867.pdf

55%

35%

10%

% Total Revenue

Cost of Sales

Operating

Expenses

Net Profit

Statistics Canada 2008: Small and

Medium Construction Firms (<$5M)

(11)

Integrated Project Delivery (IPD)

Slide 15

Optimise

design,

fabrication &

construction

Collaboration

Core team

from start

Integrate

people,

processes

and practices

Concurrent

Construction

Supported by

AIA

,

AGC

Looking to the future

BIM

changes

WHAT & HOW

data is shared

IPD

changes

WHEN

data is shared

BIM at Work

What is BIM?

BIM at Work

BIM and the QS

Getting

information out

(12)

Virtual Design and Construction (VDC)



Modelling, analysis and visualisation of the

project for design and construction purposes



Covers Product, Organisation and Process



Goals:

• As designed, on time, on budget

VDC

– Design Success



Team: Architect, Engineers, GC, Owner, ...

• Everyone on same page

• All interactions between systems considered

• Everything significant covered

(13)

VDC

– Construction Success



Team: GC, Steel, Concrete, MEP, Subs, ...

• Everyone on the same page

• Sequence of steps and implications understood

• Time, space, materials, intermediate structures

Slide 20

http://www.parch.com/?page=newsletters.php4&index=support

http://www.csiberkeley.com/sap2000/analysis

(14)

Conception



Design Visualisation

• Architects

• Interior Decorators

• Industrial Designers

• Real Estate

• Commercial Property

Managers

• Functional Analysis

h

tt

p

:/

/m

y.

o

p

era.

co

m

/ki

ent

ru

cv

n

/a

lb

u

m

s/

sh

o

wpi

c.d

m

l?

al

b

u

m

=7

2

4

0

1

2 &

p

ic

tu

re=9

7

9

6

2 ht

tp:

//

di

scou

nt

.bi

na

o

ffi

ce

fur

ni

tur

e

.com/2

0

1

0 _

0

7 _

0

1 _

a

rch

iv

e

.ht

m

l

(15)

Engineering

– Green/LEED/Sustainable

Orientation Optimization

_{Energy Analysis}

Application

Source

DOE-2

Lawrence Berkeley National Laboratory

EnergyPlus

U S Department of Energy

ECOTECT

Cardiff University / Autodesk

ESP-r

University of Strathclyde

eQUEST

James J. Hirsch and Associates

HOT2000/3000

Natural Resources Canada

Engineering

– Systems & Structure

http://www.pmengineer.com/

Articles/Cover_Story/2009/02/

01/The-Benefits-of-BIM-in-Plumbing-Design

(16)

Analysis Simulations

Cost Estimation

http://www.cadalyst.com/aec/army-corps-drawn-bim-design-3764

(17)

General Contractors

• Virtual coordination

• Prefab with confidence

• Less rework / site fixes

• Job sequencing

• Contractor schedules

• Materials management

• Minimise tool time

wastage

h

tt

p

:/

/ww

w.

cad

al

yst

.c

o

m

/aec

/b

im

-an

d

-p

ro

jec

t-p

lan

n

in

g

-1

-2

-3

-rev

it-tu

to

ri

al

-3520

Image: Tom Strong, EllisDon

faster delivery

higher quality

Retrofits



Existing as-built BIM yields:

• Easier/faster design, especially system integration

• System access constraints, related systems

• Impact on occupants



New design BIM yields:

• All visualization benefits

– occupants, bidders, …

• Scheduling

– planning, slippage

• Materials / Supplies

• Coordination meetings

• Progress tracking

• Off-site fabrication

– ease yard management

• Reduced RFI’s – models vs. drawings

General

Contractors

(18)

Consummation Variation on a year 4,000.00 4,500.00 5,000.00 5,500.00 6,000.00 6,500.00 7,000.00 7,500.00 8,000.00 8,500.00 9,000.00 J a n J a n J a n J a n J a n F e b F e b F e b F e b M a r M a r M a r M a r A p r A p r A p r A p r A p r M a y M a y M a y M a y J u n J u n J u n J u n _Jul Jul Jul Jul Jul A u g A u g A u g A u g S e p S e p S e p S e p S e p O c t O c t O c t O c t N o v N o v N o v N o v D e c D e c D e c D e c D e c E n e rg y C o n s u m m a ti o n ( k Wh ) Average 2003 Average 2004 Average 2005 Average 2006 Average 2007

Facility Performance

Energy analysis,

comfort,

controls automation

2

3

1

4 N

0 100 200 300 400 500 600 700 800 900 1000 0 5 10 15 20 D ire c t R a d ia ti o n ( k J /m 2 ) Time (h)

Daily Direct Radiation Average

Future Opportunities Owners/Operators



Dynamically tracked assets

– RFID



Supply chain integration

– automatic update



Condition monitoring

– sensor integration



Simulation-based controls



What-if scenarios made easy

(19)

BIM and the QS

Slide 32

What is BIM?

BIM at Work

BIM and the QS

Getting

information out

of the model

Quantity Surveyors Tasks

Building Estimator, Construction Economist, Cost Engineer



Talk to architects, engineers, builders, contractors,

suppliers and project owners



Study plans



Prepare bills/schedules of quantities



Check on changes of design for cost impact



Assess and recommend payments during

construction



Prepare cash-flow forecasts and tax depreciation

schedules



Feasibility studies assessing worth of a project

(20)

BIM Impact on Quantity Surveyors

Slide 34

QS

Talk with AEC

& suppliers

•Digital model

exchange

Study Plans

•BIM, not

drawings

Prepare bills

of quantities

•Model Specs

Cost of RFCs

•Model specs

Construction

payments

•Record of

progress

Cash-flow

forecasts

•4D BIM

Autodesk (c)

BIM Level of Detail / Completeness



BIM model progresses during life



More and more information added



Missing construction

assembly details



Challenges for QS

• Generic / missing data

• As-built / Model management

• Leveraging similar facilities

(21)

Level of Detail (LOD)

Slide 36

LOD

100

200

300

400

500 Content

Massing,

~volumes,

areas, zones,

concepts

Generic 3D

elements,

approx.

geometry

Specific

elements,

confirmed

geometry

Shop

drawings,

fabrication,

assembly,

means

As-built

Scheduling

Phasing,

~duration

Time-scaled,

order major

activities

Detailed

assemblies

times

Scheduling

equipment &

temporary

Recorded

completion

times

Cost

Estimation

Costs

approximated

on sqft

Generic

costing

Costing

specifics

Committed

purchase

price

Recorded

costs

Analysis

Broad

strategy – vol.

, area

Assumed

system types,

ballpark

Simulation

using model

elements

Details

simulations

specific equip.

Commission-ing, measured

performance

http://

www.aecbytes.com/feature/2008/MPSforBIM.html

http://www.ipd-ca.net/PDFs/ipd_pr_final.pdf

Quantity Takeoffs from BIM

Functionality:



Digital dim / counts



Automatable

– rules



Spreadsheet export



Automated selection

/ highlighting



Grouping assembly

/ zone



Classification (CSI)



Comparison after changes (colourised)

(22)

QTO Tool Manufacturers

• Vico Software

• Innovaya

• Autodesk Quantity Takeoff

• Tocoman



Link to Sage Timberline,

MC

2 _{ICE, or other databases}

Getting Information Out of the Model

What is BIM?

BIM at Work

BIM and the QS

Getting

information out

(23)

Sharing Models



Do not need original design suite

• Unless architect



Federated BIM viewers support 3D

coordination

• Multiple formats, systems & contributors



Beyond geometry

• Equipment make, model, serial number, etc.



Two paths:

• Proprietary formats

• International specifications

Proprietary BIM Formats



Adobe

™

: 3D PDF

– one way transfer,

not BIM



Autodesk

©

_{: not BIM}

• DWG

– 18 different formats (2009)

• DXF, DWF

– mostly 2D

• NWD / NWF

– integrated/linked Navisworks –

hybrid



Autodesk

©

_:

_BIM

• RVT

– highly proprietary



Bentley MicroStation

™

: DGN

–

BIM

(24)

Open Specifications Capabilities

Clash Detection

IFC Coord

Equip/Asset Mgmt

COBie

Steel design/fab

CIS/2.1

Energy analysis

gbXML

Legend:

Plan

Design

Build

Operate

D

e

si

g

n

Program

S

ch

e

d

u

le

s

C

la

sh

D

e

te

ct

A

sse

ts

C

o

rd

in

a

te

S

tr

u

ct

E

q

u

ip

m

e

n

t

Fa

b

ri

ca

te

As

-B

u

ilt

s

E

n

e

rg

y

A

u

d

it

IFC (Industry Foundation Classes)

Coordination View

When: design through handover, retrofits

What: coordination, clashes, planning, material, etc.

Who: owner, AEC, subs, operator

Pros: free viewers, broad support

Limitations: fabrication steel & MEP, LOD, scheduling, etc.

(25)

Viewers 1

http://www.dds-cad.net/132x2x0.xhtml

DDS-CAD Viewer

• .ifc, gbXML, .dwg, .dxf

• attributes, clash, markup,

printing

Tekla BIMsight

• .ifc, .dwg, .dgn

• attributes, markup, clash,

federated model view, measure

http://www.teklabimsight.com/index.jsp

http://usa.autodesk.com/adsk/servlet/pc/item?si

teID=123112&id=11091608

Navisworks Freedom

• .nwd, .dwf

• markup, attributes, clash, measure,

federated model view

Viewers 2

(26)

IFC File Analyzer

http://www.nist.gov/el/building_environment/cibp/ifc-file-analyzer.cfm

ID Name Description ObjectType Tag OverallHeight OverallWidth 1668 Doors--Door 2,Ground Floor.dgn,Design Model:34027 Swinging Door 1.250 2.010002 1.348 1677 Doors--Door-10 3,First Floor.dgn,Design Model:29382 Swinging Door 0.885 2.01 0.989 1669 Doors--Door-2 2,Ground Floor.dgn,Design Model:33485 Swinging Door 1.250 2.010001 1.348 1670 Doors--Door-3 2,Ground Floor.dgn,Design Model:38579 Swinging Door 0.750 2.010001 0.854 1671 Doors--Door-4 2,Ground Floor.dgn,Design Model:38855 Swinging Door 0.750 2.010001 0.854001 1672 Doors--Door-5 3,First Floor.dgn,Design Model:29841 Swinging Door 0.750 2.010001 0.989 1673 Doors--Door-6 3,First Floor.dgn,Design Model:29550 Swinging Door 0.750 2.010001 0.989 1674 Doors--Door-7 3,First Floor.dgn,Design Model:28678 Swinging Door 0.885 2.01 0.989001 1675 Doors--Door-8 3,First Floor.dgn,Design Model:29106 Swinging Door 0.885 2.01 0.989001 1676 Doors--Door-9 3,First Floor.dgn,Design Model:28862 Swinging Door 0.885 2.01 0.989001

IFC Facility Management Handover COBie

(Construction Operations Building information exchange)

When: procurement, construction, commissioning, handover, retrofits

What: MEP, equipment lists, warranties, spaces, etc.

Who: sub-contractors, facilities managers, operators

Pros: easy to use, growing support (US Army, NASA, etc.)

Limitations: not graphical, support still growing

(27)

Future: Sharing, Collaborating

Slide 48

http://www.tekla.com/us/solutions/reinforced-concrete-designers/Pages/Default.aspx