Five-Story Timber Passive House in Friedrichshafen, Germany

Structures Analysed with Dlubal Software

  • Customer Project

Customer Project

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More and more cities and towns, especially in southern Germany, are open for multi-story timber buildings. Also the German city of Friedrichshafen on Lake Constance got convinced of the apartment building concept by the wood construction company Müllerblaustein Holzbau GmbH.

Structural Analysis, Thermal Insulation, Energy Balancing, Acoustics Pirmin Jung Ingenieure
Sinzig, Germany
www.pirminjung.de
Investor, Developer, General Contractor, Planning, Production, Assembly Müllerblaustein Holzbau GmbH
Blaustein, Germany
www.muellerblaustein.de
Architect Ecorumi
Friedrichshafen, Germany
www.ecorumi.de

Model

The multigenerational house with a lakeside view was built as an environmentally friendly timber structure and designed as a passive house. The engineering office Pirmin Jung Deutschland GmbH, a customer of Dlubal Software, was in charge of structural analysis, among other things.

Structure and Design

With a length of 45 m and a width of about 23 m, the five-storey timber structure provides a total space of 2,200 m² for 19 apartments. The glazed entrance area in the central part connects two asymmetrical residential parts of the building.

The foundation consists of a reinforced concrete floor slab with a thickness of 25 cm. The basement is also made of reinforced concrete and includes storage rooms, and building equipment rooms, and underground parking lots. Above the concrete structure is the 15.8 m high timber structure.

The building envelope consists of wooden panels, the inner walls are partly made of 10 cm thick laminated timber with five layers and partly of wooden panels. The floor slabs are composed of a timber-concrete composite system. On the 12 cm thick cross-laminated timber panels, a fast-setting concrete layer with a thickness of 14 cm was poured on site. The building reinforcement comprises exclusively the timber structure, that is, partition walls between the apartments and the timber-concrete composite slabs.

Since the Lake Constance region is located in the earthquake zone 2, the engineering office Pirmin Jung also had to analyze the earthquake load case on the 3D model in RFEM. For this, the response spectrum method in RF-DYNAM Pro has been used. 'Since the joint forces could be calculated exactly, it contributed to a more cost-effective solution compared to the commonly used resultant force method,' say the engineers of Pirmin Jung.

Keywords

Wood Structure Wood Building Cross-Laminated Timber Response Spectrum Analysis

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  • Updated 29 October 2021

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