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:

Skanska Deploys Bluebeam Revu on its Largest Project To Date, the New Karolinska Solna Project in Stockholm, Sweden

Nemetschek brand involved: Bluebeam

Background

Skanska, one of the world’s largest international construction and project development groups, works on a variety of commercial, residential and public-private projects throughout Europe, North America and South America. Currently, Skanska is building its biggest project to date – the 14 billion SEK ($2 billion US), 320,000-gross-square-metres New Karolinska Solna (NKS) project in Stockholm. This massive hospital is the size of 24 average-sized skyscrapers. NKS includes seven phases, each of which is being built simultaneously. In order to complete the project, Skanska will have nearly 2,000 personnel at the peak of construction, and the team will generate over 40,000 drawings by the facility’s completion in 2017.

Challenge

With an unprecedented number of drawings and supplemental information to manage, Skanska needs an efficient way to organize project information for all phases. While construction workflows are traditionally paper based, for this project it would prove virtually impossible to turnaround updated hardcopies in a reasonable timeframe, and searching through stacks of printed drawings for answers would cause excessive delays. Instead, Skanska set out to find a solution to:

  • Digitally manage drawings and documents and enable team members to quickly find up-to-date information.
  • Electronically annotate drawings with familiar, industry-standard markups to make feedback instantly available.
  • Easily bring documentation into the field, without needing to print.

After evaluating a number of solutions, Skanska deployed Bluebeam Revu, a PDF-based markup and collaboration solution for technical professionals, on many of the project’s phases. Having already leveraged Revu to manage communication on several other projects worldwide, Skanska was confident that Revu’s hyperlinking and PDF annotation technology could be scaled to meet the huge documentation needs of the NKS project.

Solution

Revu is making a significant impact on the way that the NKS project team is managing information. In particular, Revu is helping the team organize and link related information found in their SharePoint system. First, the project’s document control team is searching PDFs so they can instantly identify all instances of specific architectural references. Those references are then linked to the affiliated documents. Then, when a contractor in the field needs to look up the references instead of remembering the drawings number associated with the references, he or she simply clicks on the comment and the applicable document automatically opens. As a result, answers to jobsite questions are being found in just minutes. When additional comments need to be made, the contractors are annotating PDFs with Revu’s customizable, industry-standard annotations including text, highlights, shapes, CAD symbols, clouds and measurements. By annotating PDFs digitally, design questions and feedback are available as soon as a PDF is checked back into SharePoint.

In the field, the NKS project team is putting a variety of Revu features to work to help the project team complete room checks in real time. The hospital’s 8,000 rooms are double-walled, and Skanska needs to verify that all specialty work – including electrical, piping and mechanical – has been completed before a wall is closed. To do this, Skanska has created custom punchkey symbols with subcontractors’ names and stored them in Revu’s Tool Chest, an exclusive feature for saving frequently used markups and sharing them with other users. Next, Skanska is leveraging Bluebeam Studio, Revu’s integrated cloud solution which enables users to store files online and collaborate on a single copy of a PDF with others in real time. As specialty work is completed, subcontractors are accessing drawings hosted in Studio Sessions with Revu iPad, navigating to the specific room they have just completed and placing their punchkey symbols to indicate that their work is finished. Because these annotations are being placed on a PDF in a Studio Session, Project Managers at the jobsite can instantly see when work is completed, enabling them to more quickly coordinate construction of each room’s second wall. Finally, by leveraging Revu, Skanska has eliminated the need to create binders for room checks, thus saving the team from managing an additional 20,000 printed sheets of paper.

Over the years Skanska has seen Revu deliver impressive results on projects worldwide, but what we are seeing on NKS is that Revu is easily scaled to take even the largest, most document-intensive projects digital. – Swaroop Kadur, Senior Project Engineer on the NKS Project

Results

Although completion is still a few years away, Revu is already making a huge impact on the NKS project. “Over the years Skanska has seen Revu deliver impressive results on projects worldwide, but what we are seeing on NKS is that Revu is easily scaled to take even the largest, most document-intensive projects digital,” said Swaroop Kadur, Senior Project Engineer on the NKS Project. “Given that this project has tens of thousands of drawings and documents, Revu has accomplished an impressive feat by consistently enabling our contractors to find the information they need in just minutes.”