Environmental physics
Building physics and planning aspects
Building physics and planning aspects is particularly important where buildings have to fit into an urban environment which is becoming increasingly built up. The question is therefore not just about the building itself, but also what impact it will have on the surrounding area. This is of prime significance when notifying local inhabitants and also for licensers.
Wind nuisance
In buildings taller than 25 metres, it is important to do research into wind nuisance/wind danger. This is done with a scale model in a wind tunnel or by means of computer-aided simulations (Computational Fluid Dynamics, CFD). In this way, DGMR can do extensive research into the wind load on the foundations and façades, and also into the effect on nearby buildings.
Sun and shade
In order to get a good picture of the sun, shade and direct sunlight associated with an urban configuration, DGMR can set up a 3D computer-aided simulation. In this way, we can ascertain whether local inhabitants’ access to sunlight will be affected. Using the 3D simulation, any problems will come to light at an early stage in the process, allowing the greatest possible time for solutions to be found.
Noise pollution of/for the surrounding area
Building in an urban environment is sometimes only possible with screening or by using a blind or ‘deaf’ façade. Though how thick do such façades have to be? How should the building be laid out? Is ventilation possible? Can the windows still be opened? Is there sufficient natural light? DGMR has an answer to such questions. In close co-operation with the transport & environment, and industry & environment sectors, DGMR determines the noise pressure from road traffic, adjusting the noise emission from the building to legally-defined levels.
Air quality
When building in large clusters, air quality also plays an important role. Strict government/user requirements in this area sometimes make the construction process possible only under specific conditions. Distance is one solution, but how does that impact on windows which need to be opened and ventilation in general? We study whether dangerous substances can be emitted and spread in the air and can specify concentrations and dilution of emitted substances.
Vibrations
These days, it is quite likely that builders will get permission to build on noise-sensitive sites. However, the vibration aspect must not be underestimated. These may be vibrations caused by road or rail, machines or pile driving. Even requirements for vibrations within buildings are becoming stricter. We can measure vibrations on site, predict vibration patterns or monitor work. Experienced DGMR specialists are regularly occupied with all these aspects.