Building Information Modelling

What is BIM?

Building information modelling (BIM) is a design method whereby software is utilised to generate complex, 3D representations which contain intelligent information about components of a building. This is particularly useful for facilities managers.

A building is ‘modelled’ virtually, before physically constructing it. The physical components of a building are digitally represented in 3D, which means the impacts of various design elements on one another, can be analysed. Hence potential problems and risks can be minimised, by coordinating the elements and taking action to reduce any risks. Geometries and material properties are embedded in the models and can be used to test potential clashes, coordinate with the architectural fabric and any building services models.

BG&E is proficient in the use of BIM in engineering projects.

Fiona Stanley Hospital - Perth, WA
QEII Medical Centre - Perth, WA
QEII Medical Centre - Perth, WA
City of Lights Hotel - Dubai, UAE
UTS Student Accommodation - Sydney NSW
Pacific National Infratructure Alliance - Nebo, Queensland
Advantages of BIM

BIM is more integrated and more interoperable than traditional CAD (Computer Aided Drafting) software.

BIM Features and Advantages

Facilitates collaboration and coordination amongst the various disciplines involved in the pre-design, design, construction, operation and maintenance of new and existing buildings. All parties to the construction team work on the same model, so that changes are automatically coordinated.
There can be substantial design and construction cost savings.
Time is saved, as the ‘extra’ coordination checks are reduced or eliminated.
Fewer errors on site, as information is more coordinated.
Before the construction begins, as many uncertainties as possible are eliminated.
Rich information is available for facilities management tasks.
The information transfer in the process of handing over a building between the phases of design, construction and operation, is smoother, as each discipline adds information to the model and can refer back to it, at each step.
Productivity is increased, as information is retrieved faster and more easily.
Vital information, such as vendors of materials, location of quantities and estimation and tendering information, is readily available and faster to retrieve.
The construction process is more efficient.
Assists in the life cycle assessment for the components of a building – assigning a social, environmental, economic cost/benefit and impact.

After occupancy, the BIM can be used to improve understanding of the building’s operation, to make adaptations, undertake renovations, additions and alterations, faster and more cost effectively than with traditional processes.

Types of BIM

BIM can be produced in several dimensions.

3D BIM Three dimensional model.
4D BIM A three dimensional model, with schedule and time constraint data added to it.
5D BIM A 4D BIM with a cost dimension added to it.
6D BIM All aspects of life cycle management are included in the model data.

Can BIM be used on existing buildings? Yes!

It is more difficult to do this, since assumptions must be made about what existed at the time with respect to building codes, design standards, construction methods and materials.

Examples of BIM

BG&E has completed numerous design projects using BIM. Examples include:

Fiona Stanley HospitalBIM models
QEII Medical CentreNew Central Energy Plant Facilities

Is BIM more expensive?

The cost savings created by the use of BIM, generally more than cover the cost of generating BIM information.

How to get started

You may have an existing building, for which you would like to have a BIM generated. Or, you may be considering a new building and wish to know more about how to incorporate BIM in your design process.

BG&E have strong capabilities in this area. For further information, contact:

Name: Donald Macmillan
Phone: +618 6364 3300

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