BIM – towards ideal
Stroitelniy Ezhenedelnik newspaper specified the latest theoretical and practical aspects of using BIM-technologies in design works in the article 'BIM - towards ideal'. Common introduction of information modelling into design and consruction works result in multiple discussions and disputes. Experts emphasise that the practical use of technologies not always corresponds to the 'ideal' theory.
Almost all experts agree in the opinion that in practice there are very few examples in Russia, when there is a request for development of a BIM model for a building from concept development to demounting.
The newspaper gathered expert opinions, both from design companies and workshops, and employees of state bodies. Svetlana Parkhomenko, head of BIM-department in Metropolis, commented on the efficiency of using this technology in design works depending on the detailed studying of the initial requirements towards the model, along with clear definition of tasks that must be solved via a BIM-model:
'To use a building information model effectively, one should clearly define the tasks to be solved by using this model. A perfect case is when all the tasks are defined prior to commencement of modelling.
If we use a model at the design stage aimed at analyzing structures, calculating performance indices, coordinating utilities, obtaining the working documentation, it would be sufficient to otbain a 3D building model, with all the necessary information content.
At the construction phase each building element may be attached to the activity progress chart, thus a model will be supplemented with a time component. Models with information on the time of construction of model elements refer to 4D models.
5D-design - models contain information on the cost of model elements.
Thus, 4D and 5D design will help perform visual planning of the building construction and control the expenditure of money.
A model which will be used at the building operation stage must contain information that will help to automate control of technical services of the building, along with information of scheduled maintenance of equipment. A model with this information will correspond to a 6D model. Operation is the longest part of the building life cycle, therefore automation and proper use of resources will help to considerably reduce the maintenance costs of the constructed building'.
Read the full article in Stroitelniy Ezhenedelnik