Collaboration par excellence

Example: Hasselt City Hall, Belgium — The building of the new municipal administration center in Hasselt, Belgium, demonstrates how seamless collaboration in building projects can minimize risks and save costs from the design phase all the way to commissioning.
A joint project of several brands of the Nemetschek Group.
Nemetschek brands involved: Allplan, GRAPHISOFT, Solibri

Pioneering planning and project execution with Open BIM

“The end-to-end use of BIM solutions constitutes genuine added value for all stakeholders in the building process
because it enables seamless and efficient collboration”

Steven Hendrickx, Head Architect in Hasselt

Large-scale, highly complex building projects in particular require ongoing, reliable and efficient coodination between all stakeholders – both internal and external – across disciplines and between companies. Therefore, in association with other market players, the Nemetschek Group is promoting the Open BIM data standard. This is a universal, collaborative approach to designing, constructing and operating buildings based on open standards and workflows It makes it possible for project stakeholders to collaborate, even if the type of software varies from user to user. The Industry Foundation Classes (IFC) interface has established itself as an open standard and is therefore of central significance.

Sharing and evaluating data throughout the entire product life cycle saves time and money and improves quality. The administration of data is key to this digital transformation, for it is only possible to take full advantage of the potential if each stakeholder can access the data that he or she needs at any given time. This begins with a realistic BIM building model, which is an essential prerequisite for a genuine 5D workflo. This model is no longer limited to just 3D construction data; it also includes data concerning the dimensions of time and costs.

Seamless collaboration exemplified by the Hasselt City Hall

Under the management of the architect team comprising Jaspers-Eyers, MASS Architects and Michel Janssen, a new municipal administration center is being built in Hasselt. The complex, consisting of a renovated building section and a new building, provides approx. 17,000 m2 for the city administration and social services as well as offices. The architects and their most important partners are using Open BIM software solutions for the entire construction process. Three Nemetschek solutions are being implemented for this project: Archicad from Graphisoft for the design and planning of the architects, Allplan Engineering for civil engineering, and the Solibri Model Checker for the BIM quality control carried out by the construction company.

From the beginning, all information concerning the building project is contained in the digital building model – from the draft to implementation – including all design details, desired materials, fire protection requirements, acoustic properties, insulation and building structures, and administration. This constitutes considerable added value for all stakeholders compared to the old standard model, which was purely 3D. Thus, this improvement ensures more than just seamless collaboration between all those involved. The complex project can be turned over to the municipality – the proud building owner – with the required quality, on time and within the specified budget.

Hasselt City Hall is groundbreaking – in terms of design, planning and project implementation.

Independent and yet consistent

Steven Hendrickx, the head architect in Hasselt, recognized four decisive factors with Open BIM over the course of the successful project:

  • Individual partners design their model with their preferred BIM software, and with their own templates. Outstanding collaboration is ensured, though, thanks to a common, uniform standard which is specified in advance.
  • The division of labor is defined at the beginning of the project. Data on statics, for instance, have an essential impact on the architecture and structural design. Data on heating, ventilation and air-conditioning, on the other hand, are also important but don’t generally flow directly into the architecture. These data, for example, can be sufficiently analyzed with the BIM solution for quality assurance from Solibri.
  • Design changes in one area don’t necessarily affect the plans of all the others involved in the project. The architecture and the building stage are inherently the most closely linked.
  • The expertise of the staff, i.e., extensive holistic knowledge of the various building disciplines, is also critical for the success of the project.

Two examples of the advantage of precise planning

In Hasselt, the construction company was commissioned with excavation, among other tasks. An assessment of the amount of sand that needed to be removed was done based on a cal culation using conventional 2D planning methods, which yielded a result of 800 cubic meters. The engineers used the Solibri Model Checker based on Open BIM and the data provided by the architects and arrived at a figue that was just half this amount, i.e., 400 cubic meters of sand. This shows how exact the work with Open BIM solutions can be.

The steel struts to be installed are another example: With the interface function IFC Exports from Allplan, it was possible to use the BIM model to automatically calculate which steel struts needed fieproofing. All it took was a mouse click to obtain precise results, right down to the running meter. In projects that don’t use Open BIM solutions, these calculations are made by manually entering the data from 2D drawings in Excel or some other software and then recalculating and evaluating the data for use in quotations and planning, a process that is susceptible to error and one that leaves a lot of room for interpretation. These errors often go undetected until the actual cost planning is already completed. In the case of the Hasselt City Hall,  it was possible to avoid such errors from the outset.

Converting to Open BIM pays off

As is the case with any change, it takes a certain amount of time for companies and employees to accept BIM as the norm. The best way, according to Steven Hendrickx, is to start out by planning smaller projects using BIM. The experience thereby gained will make it possible to complete successively larger BIM projects. The advantages of collaborating through Open BIM are obvious: The entire workflow is much simpler for all project stakeholders, and building projects are completed within time and cost budgets.

CONCLUSION

Consistent standards and open interfaces in par-ticular are essential for successful building projects. Stakeholders need solutions that can “work together” for all and any individual tasks being performed. Seamless collaboration between humans and machines: This is ensured with Open BIM, and backed by the brands of the Nemetschek Group.



Reference projects on this topic:

BANKING ON BIM

Nemetschek brand involved: Solibri

Mathias P Nilsson is a lucky man. He works in probably the best project room I have ever seen. It’s like the result of an interior designer’s perfect brief. On the one wall is an interactive screen running Solibri Model Checker. The remaining walls have monitors, and traditional date boards covered in different colored sticky notes. It certainly gives the sense of a well-ordered project HQ. It also overlooks the current construction site for the new SEB bank office complex in Solna, Stockholm. This complex will be a combination of 3 large office blocks.

Mathias is Veidekke’s VDC engineer. He co-ordinates BIM information management for the current bank project. He studied at the Royal Institute of Technology in Sweden. He did his senior thesis with Veidekke and went to straight to work for them after graduating. Veidekke is a Norwegian construction company with projects throughout the Nordic region. We took time to interview Mathias between project meetings.

“Anyone who has dealt with a large-scale BIM project will tell you the amount of information you need to keep tabs on is overwhelming. To do that without Solibri is impossible if you want any kind of assurance that what is being delivered is what has been agreed upon.” Tells Mathias.

“In the design phase, it is often chaotic and hard to foresee the risks that are being designed into the building. With Solibri, you are able to eliminate clashes between installations. In the last two projects where we ran Solibri, we have had zero installation clashes on production sites. It’s hard to say the value of that in financial terms but it’s safe to say if definitely saves money.” Mathias continues to explain how Solibri offers him all round visualization in the design phase.

“The Project you see through the window is for SEB. They are consolidating their offices with a planned completion date in 2018. When ready, it will house 4-6000 employees. For this project, our design team publishes new IFC files on a weekly basis. We then put these models through Solibri Model Checker to check for clashes and to do a visual run through before the next meeting.”

Mathias shares his thoughts with us regarding BIM and the industry as a whole. He believes the term ‘BIM’ is misleading as it means different things to different people. He prefers VDC (Virtual Design Co-ordination) as he feels it encompasses more than merely a ‘flat 3D model’ which some feels is not as useful as once hoped. Moving towards the future, I am interested to hear what Mathias sees for the industry. The cloud is something that will continue to integrate into Mathias’ world. He sees it as the easiest way for multi discipline projects to come together when sharing huge file sizes. He also sees environmental issues playing a larger role in everyone’s consideration. “I read the heating of buildings consumes 50% of used energy. Lighting accounts for approx-imately 25% of the remaining consumption. Anything we can do to help efficiency has a massive consequence all over the world. Our work can play a part.”

With that we say goodbye. Mathias has another project meeting and we take some stills of this project ‘war room’ for when we edit a film of this interview. I look forward to catching up with Mathias and Robert Priller of Graphisoft Sweden in the near future. Solna, Stockholm is one busy place for construction at present.