BIM Flashcards
BIM definition
‘Methodology to manage the essential building design and project data into the digital format throughout the building’s lifecycle.’
It is a digital representation of physical and functional characteristics of a facility, and a knowledge resource for information about a facility forming a reliable basis for decisions during its lifecycle.
Building components
They are represented with intelligent digital representations that ‘know’ what they are and can be associated with computable graphic and data attributes and parametric rules.
B, I, M each definition
Building- constructed facility that satisfies the requirements of a office/ commercial enterprise, etc.
Information- combination of raw data that conveys a meaningful message.
Modelling- act of describing/representing anything by any means to develop further understanding.
BIM Level 0
Drafting 2D hard of electronic formats- unmanaged
BIM Level 1
Managed geometrical shapes in 2D or 3D formats with collaborative capabilities
BIM Level 2
Managed 3D environment holding separate discipline ‘BIM’ tools and data
BIM Level 3
4D modelling, Level 2 + integrated and collaborative processes enabled by ‘web services and IFC standards compliant’. This level of BIM will utilise 4D construction sequencing, 5D cost information and 6D project lifecycle management information
Authoring software
Autodesk, Revit architecture, ArchiCAD, Sketch-up
Coordination software
IES VE, Autodesk Navisworks.
1D Dimension of BIM
the idea
2D Dimension of BIM
the outline- ArchiCAD- Graphisoft, Autodesk AutoCAD, Revit Architecture
3D Dimension of BIM
discrete BIM models- Autodesk Revit Architecture, BIMx- Graphisoft, A360- Autodesk
4D Dimension of BIM
Time planning- Naviswork- Autodesk, Microsoft project
5D Dimension of BIM
The budget- Autodesk Revit Architecture, Presto, Arquimedes, CYPE
6D Dimension of BIM
Environmental management and energy efficiency- IES-VE, Ecodesigner, graphisoft,
7D Dimension of BIM
Facility management or asset management
Using BIM, owners can:
-Improve building quality
-Significantly reduce building lifecycle costs
-Better understanding projects from design to finish
-Optimise operation efficiencies
- Increase occupancy and use rates
Top BIM benefits for owners:
-Reduced document errors and omissions
-Reduced rework
-Reduced construction cost
-Reduce project duration
-Fewer claims/litigation
LOD definition
Level of detail, Level of development
LOD 100
THE model element may be graphically represented in the model with a symbol or other generic representation. Information related can be derived from the other model elements.
LOD 200
100 + approximate quantities, size, shape, location and orientation. Non graphic information may also be attached to the model element.
LOD 300
200 + specific information instead of approximate.
LOD 350
300 + has interfaces with other building systems
LOD 400
350 + has information on orientation with detailing, fabrication, assembly and installation information.
LOD 500
400 + field verified representation
BIM framework
The approach to implement BIM in the UK, using the framework for managing information provided by the ISO 19650 series.
3D collision detection
identifies any possible coordination issues along with performing visual analysis to identify potential spatial design issues.
Hard clash
geometry based issues, occurs when two or more objects are conflicting with one another, could be plumbing through a surface the incorrect way.
Soft clash
when a component does not provide sufficient spatial or geometric threshold.
Workflow clash
contractor scheduling or sequencing, equipment, material delivery and general timeline workflow clash.
BIM standards
to communicate, international collaboration, effective efficient, quantitative milestones.
BS EN ISO 19650
International BIM framework for building and infrastructure projects. Series of international standards that define the collaborative processes for the effective management of information.
19650 enables…
teams to minimise wasteful activities and increase predictability around cost and time.
ISO 19650 Guidance A
information management function and resources
ISO 19650 Guidance B
open data, building SMART and COBie
ISO 19650 Guidance C
facilitating the CDE (workflow and technical solutions)
ISO 19650 Guidance D
developing information requirements
ISO 19650 Guidance E
tendering and appointments
ISO 19650 Guidance F
information delivery planning
Federated information model
Architectural, MEP (mechanical, electrical, plumbing), Structural
3D BIM coordination
the process of integrating and synchronising all of the architectural, structural and MEP models (with their associated data) into a unified 3D model
Federation
the process of combining separate models into a single composite model, whilst keeping its independence.
DFX
file format used mainly for importing and exporting CAD data between AutoCAD and other CAD-related programs.
COBie
Construction Operation Building information exchange
IFC
BIM file format
a framework which defines the extent and granularity of information is called…
Level of information needed
data conveyed using alphanumeric characters are known as…
non-graphical data
project closeout, 3 steps
operations and maintenance manuals, as built information, warranty information.
punch list
checklist of items that must be completed for a construction project to be accepted by the owner to receive final payment.
parametric model
model with adjustable parameters that enable modification of its 3D structure
Industry foundation class
example of object based format that enables information sharing among various design software
the access software
an example of an object-based format that enables information sharing among various design software.
common data environment
common information hub accessible to stakeholders in a project
BIM viewer
software used to view 3D rendition without using software that produced the model
instance
occurrence of an entity at a particular location and orientation within a model
