Residential towers with Aalborg’s best viewsLena Heldgaard Pind Jensen2019-05-29T09:14:08+02:00 Residential towers with Aalborg’s best viewsThe future Parkbyen will be located at Aalborg’s highest elevation, and Artelia is in the process of designing 5 high-rise buildings. According to the New York Times, Aalborg ranks eighth among the cities you should visit in 2019. The newspaper highlights the vibrant waterfront, where Artelia Aalborg’s office is located. One of the places where the city can be experienced in its entirety is from the future residential towers in Parkbyen. The buildings will be constructed on an elevated position in Aalborg, so even residents on the lowest floors will have a view of the city skyline. Of the 8 high-rise buildings planned, construction has started on 5 of them, ranging in size from 10 to 16 storeys. As our project manager Mads Bæk Jensen points out, there are always interesting engineering tasks in connection with the construction of high-rise buildings: “When the height increases, there are of course certain challenges with respect to fire safety and the static system. Additional pressure must also be applied for the supply of water and district heating to the upper floors.” Multi-variable Building Simulations (MIBS) The high-rise buildings will have New Yorker style roof terraces. It has therefore been a wish to comply with the energy framework without the use of solar cells, since there is not much available space on the roofs. In this context, the construction parties have benefited from the MIBS tool, which has been developed at Artelia on the basis of an Industrial PhD. The aim of MIBS is to show the entire design space available, when there is a need to simultaneously comply with the many energy, indoor climate and daylight requirements. By making millions of automated simulations, the method can immediately show how an adjustment in one part of the design affects the other design parameters. “This gives a clear picture of which solutions are available in case there is a need to omit solar cells, and what parameters need to be first rate to reach the goal. The tool provides a good visual overview of the various scenarios, and it is a great advantage when discussing solutions with the client, architect and contractor.” Mads Bæk Jensen Project ManagerStructural Client Søren Enggaard A/S Architect Transform Sensitivity analysis Torben Østergård is the author of the Industrial PhD on which MIBS is based. He views Parkbyen as a good example of how scientific work has practical value. “One of the important elements of MIBS is a sensitivity analysis that can narrow down the parameters that have the greatest impact. With Parkbyen, for example, we could see that a surprising amount could be gained on the energy side by investing in more efficient heat recovery instead of reducing the pressure loss in the entire ventilation system, which is somewhat more extensive.” From Parkbyen to Lighthouse Torben explains that MIBS has also been used for Lighthouse, which is the name of the future 45 storey high-rise building at the extreme tip of Aarhus Ø. Artelia is the client consultant on this project and used the tool to provide input for the design phase. “Lighthouse is another example of how the automated approach in MIBS makes it possible to combine many actions in real time, enabling the collective exploration of the countless possibilities across the various disciplines. The challenge here is also that there is not much space for solar cells, which can make it difficult to comply with the energy framework while ensuring thermal comfort. However, our calculations quickly showed that there are more solutions available, even if there is only a relatively small area for solar cells.” Torben ØstergårdSpecialistEnergy Design & Indoor Climate Artelia BuildingDesign At BuildingDesign.dk, you can read much more about MIBS and many other innovative measures in the area of energy and indoor climate consulting.
