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Andreas Cukrowicz begann die Zusammenarbeit mit Anton Nachbaur-Sturm bereits während seines Studiums in Wien und gründete 1996 zusammen mit ihm das Büro Cukrowicz Nachbaur Architekten in Bregenz. 2005 – 2011 war er Präsident der Zentralvereinigung der Architekten Österreichs im Landesverband Vorarlberg, von 2012 – 2013 Gastprofessor am Masterstudiengang Entwerfen an der TU München. Cukrowicz ist Mitglied verschiedener Gestaltungsbeiräte.
Andreas Cukrowicz began collaborating with Anton Nachbaur-Sturm during their studies in Vienna, and together they founded Cukrowicz Nachbaur Architekten in 1996 in Bregenz. In 2005 – 2011 he served as President of the Central Association of Austrian Architects for the state of Voralberg. In 2012 – 2013 he was Visiting Professor for Design in the Masters course at the TU Munich. Cukrowicz is a member of several design advisory committees.
Anton Nachbaur-Sturm begann die Zusammenarbeit mit Andreas Cukrowicz bereits während des Studiums in Wien und gründete 1996 zusammen mit ihm das Büro Cukrowicz Nachbaur Architekten in Bregenz. NachbaurSturm ist Mitglied verschiedener Gestaltungsbeiräte und des Unabhängigen Sachverständigenrates Vorarlberg.
Anton Nachbaur-Sturm began collaborating with Andreas Cukrowicz during their studies in Vienna, and together they founded Cukrowicz Nachbaur Architekten in 1996 in Bregenz. Nachbaur-Sturm is a member of several design advisory committees as well as the independent expert advisory council for the state of Vorarlberg.
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Gemeindezentrum in St. Gerold, 2008 Architekten: Cukrowicz Nachbaur Architekten 2, 3 Musikhaus in Röthis, 2010 Architekten: Cukrowicz Nachbaur Architekten
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The application of any form of construction is dependent on the context and purpose. The advantages of all-timber construction, for example, lie primarily in the realm of ecology and sustainability, as well as in the greater degree of prefabrication that is possible. Timber construction has its limits, however, when it comes to fire protection and sound insulation. Mixed forms of construction are advantageous in larger projects in allowing several storeys and greater spans to be implemented. In addition, mixed forms tend to be more economical in terms of design and building costs. The two forms are more or less the same when it comes to complying with low-energy and passive-building standards. All important in that respect is the design of the outer skin. The advantage of all-timber construction lies principally in the scope it allows for recycling and in the CO2 neutrality of the material. The following three examples show the potential of different kinds of timber and mixed forms of construction.
Community Centre in St Gerold In view of the existing constraints, it was the clients’ wish to create a model community centre in St Gerold, Austria, that would be as environmentally sustainable as possible. An all-timber structure was chosen, for which it was possible to use the local authority’s own wood in conjunction with a small-scale spatial structure and small spans. The compact four-storey volume has a passive-energy form of construction and is virtually self-sufficient in its energy supply. Apart from the use of reinforced concrete for the external walls where these are in contact with the earth, the entire building has a timber structure. The other load-bearing external walls and all internal walls consist of prefabricated timber units. In addition, four solid timber elements were used for the lift shaft. The floors are in a vertically stacked plank construction; the flat roof was built with solid timber beams. The roof is designed to bear foot traffic for maintenance purposes.
Community Centre in St Gerold, 2008; architects: Cukrowicz Nachbaur Architects 2, 3 House of Music in Röthis, 2010; architects: Cukrowicz Nachbaur Architects
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House of Music in Röthis This three-storey building was originally planned as an all-timber construction, but changes had to be made to meet the special needs of a music rehearsal centre (combined with a cafe), primarily for reasons of sound insulation. The load-bearing elements of the basement storey as well as the slab over the ground floor are in concrete, as are the lift and services core, which has a bracing function. At ground floor level, vertical loads are borne by steel columns concealed in the external and intermediate walls. The timber-beam construction of the uppermost floor allowed larger service runs to be laid for the ventilation of the rehearsal space. In addition, the voids in the floors act as bass absorbers and optimise the spatial acoustics. Prefabricated timber elements were used for all external walls, which were executed in a load-bearing form on the upper floor. A thicker bed of grav el was laid on the roof for sound-insulation purposes. Lerchenpark Housing in Lauterach For this development, a mixed form of construction was chosen for economic reasons. The load-bearing structure of the five threestorey housing tracts consists of concrete floors with integral ventilation ducts, and steel columns in the outer and intermediate walls. The load-bearing internal walls in the basement and underground garage are also in a solid form of construction, although the bearings for the floor slab on top are restricted to specific points in order to optimise thermal transmission between floors. The staircases and lift cores were executed in concrete and serve to brace the building. The external walls consist of prefabricated storey-height timber elements. Apart from economic considerations, an important argument in favour of mixed forms of construction – especially in housing – is the sound insulation between floors. It is not so easy to implement this with all-timber structures. In addition, mixed forms of construction allow greater widths to be spanned with a smaller structural depth. It is also simpler to achieve the necessary fire protection.
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