« BIM in Europe: Current and future applications »

Report
« BIM in Europe: Current
and future applications »
5ème partie
Friday 7th october 2011, Nice
« BIM in Europe: Current
and future applications »
Presentation Tomi TUTTI
Friday 7th october 2011, Nice
Build on Information
Moving from the traditional methods into a BIM
based quantity takeoff and estimating - what we
have learned during the last 10 years?
Adopting Emerging Technologies
 BIM is close to the mainstream market
 What are the barriers to reach it?
 People, processes and tools
Build on
information
Build on Information
User Specific Issues
Hardware & Operating System
:-(
 There are system requirements...
 processor and memory
 video card and screen resolution
 Not a big problem today, but...
 models are getting more complicated
Build on
information
Build on
information
Unrealistic Expectations
Why this does not happen
automatically?
Many people seem to
want a single button
 is it realistic?
 what would it mean?
Frequency
 If you do BIM based takeoff once in a
year, you forget how to do it
Build on
information
Solution?
Contractors are starting to build inhouse competence centers for BIM
 people with deep understanding of BIM
 necessary hardware and software
 constantly working in BIM projects
Developers are hiring specialized BIM
consultants to manage the process
Future?
Build on
information
Build on Information
Industry Wide Issues
Process Instead of the Tool
 Modeling requirements
 what needs to be modeled?
 what objects (e.g. wall) should be used?
 what identification information is needed?
 Delivery process for the models
 what is the model contents in each design phase?
 what file format(s) is used?
Build on
information
Build on
information
2D Ecosystem
 Measurement rules and cost databases are
typically optimized for 2D and humans
 difficult to use with 3D geometry
 difficult to implement in a software
Wall has a ...
... net area!
x Height of the wall
x Height of the windows
Solution?
Various parties are developing the new
process and guidelines for it
 developers, architects and contractors
 development will take some time!
Existing measurement rules and cost
databases will be a big problem
 requires changes also from suppliers
 e.g. Finnish precast concrete industry
Build on
information
Build on Information
Benefits of BIM?
Build on
information
Measuring the Benefits
 Benefits have been difficult to measure
 What about saving time?
 Less takeoff  more estimating = same time
Better information for
decision making
Support of process
innovation
Substitution of
human labour
Image by Stephen Fox, VTT
New value propositions
for the clients!
« BIM in Europe: Current
and future applications »
Presentation Edwards MATTHEW
Friday 7th october 2011, Nice
Matthew Edwards – Director : Elevations-BIM
>>>What is Building Information Modelling (BIM) – Differing Views ?
UK Construction Project Information Committee: “Building Information Modelling is digital
representation of physical and functional characteristics of a facility creating a shared knowledge
resource for information about it forming a reliable basis for decisions during its life cycle, from
earliest conception to demolition.”
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USA: Associated General Contractors : "an object-oriented building development tool that
utilizes 5-D modeling concepts, information technology and software interoperability to
design, construct and operate a building project, as well as communicate its details."[
What type of projects can BIM be used in ?
………Practically anything that can be designed in 3D !!
3D Architectural Design
3D Civil / Structural Design
3D M & E Design
3D O & M Design / Commissioning / Long Term Preventative Maintenance
Construction Projects include :
Commercial Projects – Hotels / Offices / Supermarkets / Warehouses
Residential Projects– Multi-Storey Buildings / Apartments
Educational Projects – Schools & Universities
Government & Local Authority Projects – Civic Offices
Major Capital Construction Projects – Regeneration Schemes
Civil Engineering Projects include :
Major Structures – Tunnels / Bridges / Basements
Renewable Energy Schemes – Wind Farms
Power Stations – Hydro and CHP
Water Treatment & Sewerage Treatment Plants
Linear Projects – Rail / Motorways
Major Capital Civil Engineering Projects
Rail Projects – RPA & Irish Rail Projects
>>>How many dimensions are there in Building Information Model (BIM) ?
3D –3D Design
4D – Linking 3D objects to Gantt chart activities
5D – 4D + Resources / Costs ( Built into activities)
6D – Sustainability (and Robustness of 3d objects)
7D – Facilities and Asset management
8D – Post Occupancy
9D…TBC
>>>What is a Building Information Model (BIM) ?
What is the Lifetime of a typical BIM model ?
Answer : A BIM model has a Life time in digital format, like a building has a lifetime in
reality, from conception to demolition.
40 years
3 years
3D >>6D
IPD
Stage
37 years
Facilities Management >>7D
>>>What is BIM Integrated Project Delivery (IPD)
Integrated Project Delivery (abbreviated IPD), is a collaborative alliance of
people, systems, business structures and practices into a process that
harnesses the talents and insights of all participants to optimize project results,
increase value to the owner, reduce waste, and maximize efficiency through all
phases of design, fabrication, and construction.
The IPD stage of a project is only around 3-4 years of a project life where it is
built. This is the Design / Procurement / Construction and Commissioning
stage.
The remainder lifetime of a project is the facilities / asset management stage
which is the seventh dimension (7D).
Current forms of contract do not take account of this.
Answer : Multi Party Form of Contract
>>>So, What is a 3D object ?
A column has :
Quantities
Dimensions
Loadings info & Calculations
Specification
A 3d object has :
Quantities
Dimensions
Loadings info & Calculations
Specification
COSTS !!!
>>>What is a 3D object ?
So, a BIM model can be made up of multiple 3d objects, to create a 3d model
>>>How can we link 3d objects to create a 4d timeline.?
So, a BIM model can be made up of multiple 3d objects, to create a 3d model , these can
be interlinked with activities from a Gantt chart and costs for permanent and consumable
resources can be applied.
>>>What is constructability ?
Wikipedia : Constructability (or buildability) is a project management technique to review
construction processes from start to finish during pre-construction phase. It is to identify
obstacles before a project is actually built to reduce or prevent error, delays, and cost
overrun.
>>>Why is it so important in BIM ?
Constructability is important in 3d/4d modelling as models need to be created and
built as per construction methods and knowledge on-site in line with realistic time and
cost constraints.
Historically, Planners, schedulers and Project controllers provide constructability within
their Gantt charts when they construct within their minds logically with design and
methods..
>>>What is constructability ?
Wikipedia : Constructability (or buildability) is a project management technique to review
construction processes from start to finish during pre-construction phase. It is to identify
obstacles before a project is actually built to reduce or prevent error, delays, and cost
overrun.
>>>Again ……..Why is it so important ?
Unfortunately …Designers produce designs that are NOT constructible & why ?
Because they are designers and not constructors !
This is an issue …..
>>>What is constructability ?
Take for example – a RC floor slab (50mx50m) ….
The pour is 3000m3 of concrete with a depth of 1.200m…..It was priced at tender stage by
the contractor with a BOQ undertaken by a PQS using 2d drawings.
The architect created the design and the structural engineer designed the slab within
these parameters incl. rebar and concrete mix..The PQS measured it and produced a BOQ
for the tender..
>>>What is constructability ?
The pour is 3000m3 of concrete with a depth of 1.200m…..
Is it constructible ? No !
How can it be made constructible ? By allowing input from the constructor and planning
the sequence of pours in line programme / schedule & the contractors budget.
The 3d object is divided into 4 pours of 750m3 each – It is now constructible.
>>>…BIM can be used to produce this accurate 5D BIM cost management
data derived from the BIM model at preconstruction / construction
stage…
Constructible
3D Objects
>>>….Examples of 4D/5D BIM scheduling with BIM Cost Management at
Live contract stages…
Schedule / Gantt
Planned Model
Actual Model
5D Resources
5D Cash Flow
….Advantages and Disadvantages of BIM
Advantages:
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Disadvantages:
Visualisation
• Current Contracts
• Behavioural Risks
Collision and Defects Correction
• Technology Reliance
Time and Cost savings
• Model Ownership
Take off and estimating
•BOQ ISSUES
Communication and Collaboration
Scheduling and Project Management
Sound and Light Analysis
Sustainability
Off-site Construction
Field verification and guided layout
Constructability and Safety plan, Risk and Hazard
Identification
Minimisation of Waste
Life cycle Data
Discussion Time ….
Standard Methods of Measurement Issues
Forms of Contract Issues
www.elevations-bim.com
Matthew Edwards – Director
MIEI,ACIArb,CEnv,MCIOB
[email protected]
The BIM services we provide…
BIM Project Management
BIM – Integrated Project Delivery
BIM Cost Management
BIM Quantum Claims/Forensic Delay Analysis
BIM Project Controls Management
BIM 3D / 4D / 5D / 6D / 7D Modelling
BIM in the Irish Construction Market
- An Overview of a Confidential Live project
Elevations : Our Integrated Project Delivery Services :
BIM 3D>4D>5D>6D>7D
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BIM Visualisation
BIM Collision and Defects Correction
BIM Time and Cost Estimation
BIM Take off and estimating
BIM Communication and Collaboration
BIM Scheduling and Project Management
BIM Sound and Light Analysis
BIM Sustainability
BIM Off-site Construction
BIM Constructability and Safety plan, Risk and Hazard Identification
BIM - Minimisation of Waste
BIM Life cycle Data for facilities management
PORTFOLIO CASE STUDY Aug 2011 : Confidential BIM Project currently being undertaken
- Ireland 2011
Aug 2011 : 5D BIM Cost Management Images of Live Case study
Aug 2011 : 4D/5D BIM Project Control of Live Case Study
Aug 2011 : 4D/5D BIM On-site Project Controls & EVA / Resource Management
Time and cost benefits of BIM
A study done by Stanford University Centre for Integrated Facilities Engineering
(CIFE) figures based on 32 major projects using BIM indicates benefits such as (CIFE,
2007):
•Up to 40% elimination of unbudgeted change.
•Cost estimation accuracy within 3%.
•Up to 80% reduction in time taken to generate a cost estimate.
•A savings of up to 10% of the contract value through clash detections.
•Up to 7% reduction in project time. (Azhar S. et al.(2009))
The potential benefits for All….
Our Approach
Space planning and
program compliance
Energy analysis
Market drivers
Cost management and
market complexity
Sustainability
Design configuration
Scenario planning
Building system analysis
Cost management and
complexity
Sustainability
Design communications
Market-place complexity
and language barriers
Cost management
Quality take-off and
cost estimation
Design coordination
Schedule simulation (4D)
Project controls
Pre-fabrications
Pro forma analysis
Operation simulation
Asset management
Cost management and
infrastructure complexity
Time to market, labour
shortages and languages
barriers
Time to market
Time to market
Cost management
Sustainability / Cost
management
Asset management
Benefits to client
Ensure project
requirements are met
Improve sustainability
and energy efficiency
Design quality and
communications
Building performance
and quality
Communications
More reliable and
accurate estimates
Reduce field errors and
reduce construction costs
Communication
schedule visually
Track project activities
Reduce on-site labour
improve design quality
Improve cost reliability
Building performance
and maintainability
Facility and asset
management
Questions answer session
Richard
BIM AFTERNOON
Friday 7th october 2011
44
Synthesis / Closing words
Peter Van den PIJL
BIM AFTERNOON
Friday 7th october 2011
45
END
Thank you!
BIM AFTERNOON
Friday 7th october 2011
46

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