3D/4D/5D BIM Flashcards
(32 cards)
What is 3D BIM?
The process of creating graphical, non graphical information and documents and sharing it in a common data environment.
What 3 things make up 3D BIM?
Graphical data, non-graphical data and documentation.
What is the ‘documentation’ that makes up 3D BIM?
Correspondence, drawings, schedules spreadsheets.
What is the non-graphical data that makes up 3D BIM?
Data conveyed using characters.
What is architectural visualisation?
High quality presentation materials for approval, marketing and even design investigation.
What is the design coordiantion of 3D BIM?
Clash detection.
What is the compliance checking of 3D BIM?
Checking against collision, spacing and escape route lengths.
What is the structural analysis section of BIM?
Finite element alalyses based on structural building components,
What is the design documentation of 3D BIM?
Generating floor plans, sections and elevation conforming to standards
What is 4D BIM?
3D BIM + scheduling.
Before starting on site, what must a contractors planner prepare?
A construction programme.
What is a construction programme based on?
Experience, weather, site constraints, logisitic, required finish date.
Why do planners use microsoft project to schedule work
To simplify the task of scheduling, easier to create complex schedules.
How does 4D BIM show an animation?
It shows the 3D over time
What are the benefits of 4D BIM?
Most up to date information, mitigation of errors.
Identifies 4D clashes.
Ensures project is logically sequenced
4D BIM allows for feedback at early stages, what are the benefits of this?
Avoids wasteful and costly design rework
What is the benefit of sharing 4D simulations?
Gives everyone a clear visual understanding of the sequence of planned works.
How can you compared 3D and 4D BIM?
Compare planned vs actual progress. Clearer reporting to rest of team
What are the limitations of 4D BIM?
The quality and accuracy of the animation is directly linked to the quality of programme data and model information.
4D is a tool to help visualise the sequence and highlight potenital problems, what does it not replace?
The engineers judgement,
What is the typical workflow of 4D BIM?
Load a BIM model into Navisworks, import a schedule, simulate schedule.
What are the postives of automatically mapping a model to a schedule?
Increases efficiency by automating portions of the linkage, mitigating the risk of errors.
What are the things to consider with animations?
What is the goal of animating the project
Presentations for the clients add realism.
Sometimes less is more.
In an animation, you need to show context. What does this mean?
Need to show the environment the project is being built on. The 4D animation can show delivery access.
