Building information modelling bim and virtual construction

Building information modelling bim and virtual construction

building information modelling
Building Information Modelling

We have been hearing the term Building information Modelling (BIM) for around 20 years. The concept of digital and spatial representation of buildings has also been around more than that. Over this time, lots of variation and perversion has been occurred to the term BIM.

“BIM in itself is a revolution in the construction industry.”

Building information modelling (BIM) is the procedure of generating and managing building data for the entire lifecycle of a facility. The three-dimensional, real-time, dynamic building modelling software used in BIM can decrease the wastage of time and resources in the process of designing and constructing a structure. BIM provides virtual information model that can be handed over from design team to contractor and subcontractors and then to the owner and it benefits the overall project schedule. BIM helps build a project virtually prior the construction starts and it is known as virtual construction.

First of all, virtual construction is not a synonym of building information modelling and they should not be used interchangeably. Virtual construction technologies can deliver projects ahead of schedule and within the budget. It is helpful for planning, coordination and communication on civil infrastructure, commercial and heavy industrial buildings construction projects. It is sure that if a project is designed and constructed in a collaborative environment using BIM, it can really save time and costs on site.

Earlier, the speed of communication was inhibited due to limited forms of media. Fast communication, obviously often seeks to transfer risk from one member to another of the team, instead of addressing it head-on.

As 3D modelling improves site coordination, this risk is dramatically eliminated altogether. BIM can compile all project information in a universally understandable way. When the clarity and speed is improved, it will automatically reduce estimating time, which will result in higher quality.

Building information modelling bim and virtual construction

Objectives of various BIM stages

  1. Constructability analysis: With virtual construction and BIM modelling
  2. Coordination of Building Components: with clash detection and virtual coordination
  3. Extraction of quantities: with BIM model components
  4. Construction sequence simulation: By connecting construction schedule with model components

The benefits of 3D models by BIM are several. The data contained in each element in the model may appear to be just one small piece. But it is very necessary to complete the larger puzzle of the construction project. Moreover, everybody involved in the project can easily understand the exact quantities and quality of the entire project. That means, the team members do not have to sift through pages upon pages of drawings for several weeks to extract information. It will happen in a few moments.

Difference between Building information modelling bim and virtual construction:

As per expert’s BIM is implemented under the entire project life cycle from Planning, Designing, Construction and Operation but specifically under Architectural Building project types. On the contrary, VDC (Virtual Design & Construction) is implemented under designing and construction phase under different project types from architectural building, urban development, infrastructure development, etc.

In short, BIM covers all phases of a building life cycle horizontally. Even though virtual construction covers just two phases, it reaches multiple markets and project types vertically. Reference bim forum.

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