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DI (FH) Ondrej Galas28.9.20233 min read

4 tips for BIM planning for public clients

Building Information Modeling also brings numerous advantages for public clients in construction planning and implementation. In particular, the efficient project planning, which saves time and costs, but also the better comparability of offers in tenders contribute to the fact that BIM is increasingly demanded by public clients. In Austria, the use of BIM is not (yet) legally anchored in public procurement guidelines but can be required by the client in public tenders.

Project Manager and Branch Manager Ondrej Galas tells us about the challenges we face even in large BIM projects and how to manage them well, with four practical tips and examples from the hospital sector.


Know your (public) client

One thing is highly likely to be true for most industries: the larger and more voluminous the project, the greater the complexity. This applies once again to public sector contracts and, of course, to the construction of hospitals. These consist of a wide array of subsections, highly technical facilities and must meet many hygienic specifications. In most cases, such projects are structured in large consortia and various stakeholder groups and suppliers – such as BIMEXPERTS – are part of the success. We have already been involved in several well-known hospital projects – you are welcome to read our references.


Experience counts more in the public sector

Large projects require particular preparation – this is even more important in the public sector, and experience in this segment is definitely valuable. Net construction costs are on average much higher than in other projects in our customer portfolio.

In tenders, for example, good references are even more relevant; the economic and technical performance of the project partners must be precisely documented, as well as the formal requirements for the respective industry or subsection. Although this tends to exclude small, younger companies, it provides stability for all project participants, especially in projects with long duration. At rtech engineering or BIMEXPERTS, we invest a large part of the project work into detailed preparation of the tender documents.


Precision and collaboration while working in consortia

In the planning area, designs were traditionally required in 2D. Due to the elevated technical requirements in hospitals and the necessary precision in HVAC and MEP planning (i.e. heating / air conditioning / ventilation / plumbing / electrical) the extension in 3D with Building Information Modeling is increasingly in demand.

As one of a few planning offices in Austria, BIMEXPERTS has been offering this option for over a decade. As a BIM-certified company and BIM Consultant, we can contribute remarkably in mentioned consortia together with architects, planning and engineering offices. And very important: We see good communication and coordination with these partners as well as a holistic planning approach as the best way to realize projects efficiently.


Specifics for MEP planning in hospitals

Operating rooms and "clean rooms" not only require special equipment, but also must comply with strict hygiene regulations and specific standards, such as ventilation systems that have to be equipped with special particle filters. Another example is fire protection concepts, which have higher standards than residential buildings. All these factors are considered in MEP planning.

In Austria and Germany, but also internationally, BIMEXPERTS can provide extensive support.

Here, the focus is on the services specified in the ÖNORM (B 1801-1 Building – Technology Cost Breakdown 3) or in the DIN (276 KG 400 Building and Technical Facilities), in Austria this applies to the work phase 1-9.


International BIMEXPERTS project examples

  • EU:
    The planning of the renovation of the second largest hospital in Germany, which is currently in the final phase, was very complex. The focus here was on HVAC planning, while the electrical engineering was provided by another partner. This was a particular challenge, because these detailed subsections are closely interrelated, and planning difficulties can easily arise if they are handled separately.
  • Asia:
    In an impressive new building project in SE-Asia with German standards and 14,000 m2 gross floor area, we were able to score with our BIM know-how and overall coordination of the BIM model from work phase 2 (According to the cost group 400, these were KG 410, 420, 430, 440, 450, 470, 480).
    BIMEXPERTS was able to manage the highly interdisciplinary coordination of the subsections thanks to IFC and native Revit models. There are only a few comparable healthcare facilities in the world that offer cyclotron radiation therapy, which was integrated in this project and taken into account accordingly for the electric insertion work. 


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DI (FH) Ondrej Galas

Ondrej Galas serves as the Branch Manager for the Serbian location at BIMEXPERTS