What we need is - BIM

Report
THIESS BUILDING
PRESENTATION TO AMCA BIM-MEPAUS FORUM
27 JULY 2011
THIESS OVERVIEW
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Founded in Queensland in 1934
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Australia’s largest construction, mining and services
company
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Turnover $6.8B
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Work in hand: $22.2B
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More than 17,500 employees and subcontractors across
more than 200 projects
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Operations in Australia, NZ, Indonesia, India and UAE
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Owned by Leighton Holdings Ltd
Playing a unique
role in Australia’s
construction
history
CAPABILITIES
We maintain a strong
portfolio with significant
diversity across the
construction, mining
and services sectors.
Our experience covers:
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Civil
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Mining
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Services
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Industrial Projects
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Tunnelling
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Rail
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Building
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Facilities Management
THIESS BUILDING
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A professional Design Management &
Construction Management team
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We don’t design - we manage design
with/on behalf of our clients
SOME CURRENT BUILDING PROJECTS
King George Central, QLD
Townsville Hospital Expansion, QLD
RAAF Base East Sale, VIC
Lotus Glen Correctional Centre, QLD
Royal North Shore Hospital, NSW
EARLY BIM EXPERIENCE
NSBT Bid
Darwin LNG Plant
Dawson CHPP
HNA Precincts Bids
Boggo Road
Burnett Dam
SOME RECENT 4D PROJECTS
400 George Street Office Tower
400 George Street, Brisbane
M1 Westgate Freeway Upgrade
Airport Link (Box Jack Construction)
THE ARK
NSBT Bid
The ARK
Darwin LNG Plant
BIM FOR ALL NEW PROJECTS
Most importantly, through the experience on the ARK, Thiess were convinced
BIM is the future.
• All parties involved in this exercise walked away with better understanding of the
potential of BIM, but also of the process and skills required to effectively use it.
• Since the completion of the ARK, Thiess Building has committed to a strategy that all
future building projects will be delivered through a BIM process.
• BIM capability is increasingly becoming an important criterion when we select
consultants and D&C subcontractors.
VICTORIAN DESAL PROJECT
Victorian Desal Project
TOWNSVILLE HOSPITAL STAGES 3 + 4
Oncology Building
Pathology Building
Oncology Building nwf model
Pathology Building nwf model
Central Energy Facility
Central Energy Facility nwf model
BIM IS A PROCESS
BIM is a PROCESS, combined and integrated with supporting TECHNOLOGIES.
A correctly assembled BIM is a reliable, digital, three dimensional, “virtual”
representation of the project, for use by the client, contractor and project team in:
• brief validation,
• design decision-making,
• cost estimates,
• construction document production,
• construction scheduling and planning,
• performance predictions,
• building commissioning,
• building management and maintenance.
A single “BIM” system will not currently support all of the above, and likely will
not for some time.
BIM CHALLENGE
A REAL issue is that many stakeholders are gaining no benefit from BIM due
to the lack of understanding of “basic” BIM PROCESSES.
BIM starts with, and its success relies upon, implementing;
• strategy and process,
• standardised terms/definitions/information,
• and a technology backbone to enable
– cost effective implementation, scalability,
– information reuse, and
– ongoing decision support.
BIM EXECUTION PLANS
What we need and what we get is too often dependant on the background of
who authors it.
So we can end up with:
• Architect/Principal Consultant as BIM Manager
• Head Contractor as BIM Manager
• Independent Consultant BIM Manager
What we need is:
• BIM Execution Plans which spell out Who, What, Why, When, How.
• Especially explain who will use the data at the various project stages and
therefore how it needs to be formatted.
• Deliverables and responsibilities clearly defined.
• Plan the BIM process to support decision making milestones.
The AIA Building Information Protocol is not a BIM Plan.
DATA USERS ARE OFTEN FORGOTTEN
The key users of the BIM data need to be involved in the scoping of the BIM
process:
– The Head Contractor
– The Cost Planner
– The Client/Owner??????
• Biggest potential of BIM for Head Contractors is day to day use on site.
• Site staff aren’t generally computer comfortable.
• Solutions must be quick to access and quick to understand.
• Systems and processes implemented at design commencement determine
success of model use on site.
Remember the Contractor is typically a data user not a data creator.
NAMING CONVENTIONS
Establish consistent naming conventions across project teams.
• In many cases project teams start their modeling work in isolation.
• First Federated Model is not created until all team members are well entrenched
in their practices.
• The “entrenchment” oftentimes is not so much a technical issue but an issue of
habits that the individual team members have developed.
• Creating consistent naming conventions for model elements, sub-elements and
attributes can easily be done at the beginning of a project and will create
efficiencies every time models are federated, jointly reviewed or leveraged for
downstream processes (e.g. quantity take off, scheduling).
We find it the single most important convention for usability of the models
LEVEL PARAMETERS
Every component of a building is built on a particular level
• Often due to model file size and programme, design reviews, clash detection,
quantity extraction will be done per level.
• We also use the model and parts of the model to produce Work Method
Statements and Workpacks.
• Allocate a level parameter to every model element.
• In some software such as Revit MEP it can be difficult to allocate a level
parameter to some system families but can usually be fixed with a shared level
parameter.
• Supply search sets for your systems with your models.
ONE MODEL
Export/publish each element just once at each issue
• This is not about a single integrated model vs a federated model.
• It’s about the data users, i.e. the Contractor, the QS, the Client receiving one copy
of each model element at each issue when it matters.
• Monitor and manage your own models to eliminate duplications of elements.
• Manage your federated models to eliminate duplications of elements between
disciplines.
ASSET DATA
Populate your source models, not the Federated Models.
• The model review tools (tools for creating Federated Models such as Autodesk
Navisworks, Solibri, Bentley Navigator or Tekla Project Manager) that are
available today offer many ways of entering data and information into models.
• The unintended consequence of the practice of entering information into model
review tools is that project team may end up with conflicting or missing data.
• Of course there are many situations where it is impractical or impossible to know
and populate all the information that may be needed in the source models.
DELIVERABLES
BIM is not just about the modelling software and families development.
It’s a data rich computer model that needs to be transmitted between and edited on
several other programmes. We often need;
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Revit .rvt files for record, for some subcontractors, for as-builts,
Navisworks .nwc files for collaboration, co-ordination and timelining,
Autocad 3D .dwg files for some subcontractors
.ifc files for some subcontractors and sometimes for other consultants
Autocad 2D .dwg files for use with CostX and some subcontractors, for as-builts
Autocad .dwf(x) model files for use with CostX
.pdf files - vectored & layered if for CostX or rastered if only for record
This requires adherence to well structured export protocols
BIM ENABLED IPD
BIM is an integrated project delivery process.
• It is only truly successful with collaboration between all stakeholders.
• A true IPD process includes sharing risk and reward?
• Understanding and contributing to a collaborative process is all important.
• As BIM develops we will team with those with experience.
• With IPD we will team with those we trust.
If you have well developed, documented, industry aligned and collaborative
BIM processes then perhaps trust is more likely.
BIM-MEPAUS
Advancement of BIM Collaboration requires the protocols and processes to be
anticipated at the commencement of design. To achieve this we need:
• Industry standards for BIM that can be simply and quickly referenced, adapted
and implemented by the Client, the Principal Consultant or the Head Contractor.
• Together with workflows that enable outcomes to be delivered efficiently and
repetitively in the marketplace.
• All formalised in BIM Execution Plans with an industry supported format.
Thiess believe, industry initiatives such as BIM-MEPAUS together with the
Natspec National BIM Guide project will provide the basic templates to:
• align understanding,
• remove confusion,
• maximise effort,
• promote trust and
• deliver BIM enabled Integrated Project Delivery.
THANK YOU

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