Background to BIM
BIM – Building Information Modelling is a process to create, collaborate and exchange building information and data between multi-disciplines to produce a digital record of a building. The information can be used in many ways for example in creating construction drawings, fabrication details, schedules and maintenance records. From the original building inception through to maintenance records BIM can be used to record the lifecycle of a building.
The implementation of BIM has been split into the following three levels:
- Level 1 – Managed drawings in 2D or 3D CAD
- Level 2 – Managed 3D model with data attached but created in separate discipline models
- Level 3 – Single online project model with construction sequencing, cost and lifecycle management information
In the UK, the Government Construction Strategy published in May 2011, states that the ‘…Government will require fully collaborative 3D BIM (with all project and asset information, documentation and data being electronic) as a minimum by 2016′. This will represent a minimum requirement for Level 2 BIM on centrally-procured public projects from April 2016
Advantages of using BIM
The main benefits of using BIM on projects are:
- Reduced risk by more detailed design with ability to identify and resolve clashes.
- Shorter project duration through reduction in wasted effort, drawing repetition, etc…
- Increased accuracy through better coordination between different disciplines, Architects, Engineers, M&E…
- Clear communication and informed decision making, through improved collaboration, earlier involvement and clearer understanding of the project.
- Ability to create a building maintenance register.
The J P Chick & Partners BIM journey began in September 2013 with a three day intensive training course and following this we have modelled numerous buildings for both the education and commercial. We are currently working at level 2 and recently our BIM users attended an advanced training course to equip us with the skills to begin progressing to BIM level 3.
We currently use Autodesk Revit Building Design Suite for our BIM work and we now have the ability to export a steel frame for example into a program called SCIA Engineer enabling us to apply loads and carry out structural analysis on the frame. This information can be exported back to Revit to produce a record of the design loadings so if in future modifications are required, the designer can identify the existing capacity of beams, columns, floors, etc…
For one specific client’s request we have used the Building Design Suite to produce detailed reinforcement drawings and schedules within the model. The reinforcement can be viewed in 3D giving us the ability to rectify bar clashes or detail rebar around service penetration. The bar locations can be recorded within the as built model for future reference.
We are taking a lead in using BIM technology on our projects as we enter and embrace the age of digital engineering!
If you wish to discuss the benefits of using BIM on your project please contact us on 01473 280699