For this fourth edition on digital modelling, we take a look at how BIM is revolutionising the construction phase. Site organisation is optimized, technical difficulties and complex interactions are anticipated, guaranteeing time-saving and quality.
Optimizing site management
In the BIM (Building Information Modeling) world, 4D is the process of integrating the time factor into BIM via a planning tool. This makes it possible to visualise project evolution step by step and check that the schedule is coherent. With two major applications:
– presenting the global execution of the project to the client, to reassure him that lead-times have been properly understood
– associating an in-depth schedule to a detailed model in a precise space, such as angled roof beam casting on very high sites.
From materials and logistics points of view, supply needs are better anticipated and modeling storage space facilitates optimization.
BIM enables project teams to visualise technical points and interfaces between several building items upstream, instead of discovering them as the site progresses. Up to tens of thousands of working hours on a major site can therefore be saved. In building, complex interactions are shown up more clearly, such as openings in slabs, re-entrants (empty spaces) in shells and walls, and cable and pipe routing inside structures. On complex civil engineering projects, such as nuclear power plants or large-span viaducts, BIM helps build exceptionally dense reinforcements, as well as re-entrants and inserts scattered in the walls to position future equipment.
Optimized quality, deadlines and safety
Respecting commitments is fundamental for Bouygues Construction, and BIM helps on this score in a number of ways. To begin with where quality is concerned: by facilitating remedies for any defects or problems, BIM contributes towards achieving “zero defect” projects. When it comes to safety, BIM makes it possible to properly identify and prevent risk situations occurring. Last but not least, with regard to deadlines, it improves coordination between teams.
For more information, go to www.bimgeneration.com