up flow
University of Innsbruck | Studio 1 | assoz. Prof. Dipl.-Ing. Andreas Flora | Dipl.-Ing. Thomas Thaler | Dipl.-Ing. Dr. techn. Roland Maderebner | Prof. Dr.-Ing. Philipp Dietsch
In collaboration with Felix Reith [construction engineering] | Maria Gorfer [construction engineering]
summer semester 2021
Residential space in conurbations is already almost exhausted in most major cities, but demand is not yet met. Not only purely residential buildings show the potential for a post-densification measure in the form of an increase in height, but also commercial or infrastructurally used areas and buildings turn out to have great potential for an increase in height. Residential space close to the city centre is often sought after, especially because of its excellent location.
The city centres of the world are expected to become more and more traffic-calmed in the coming years. As a result, there are many areas whose use can and should be reconsidered. The property in Radetzkystraße | Innsbruck currently consists of a supermarket, a bank and residents' garages. Surrounded by many other parking facilities in the Innsbruck district of Reichenau, there is an opportunity to develop a new use for the site and thus extend the life cycle of the building. The redensification measure created within the design is intended to enlarge the face of the building towards the intersection with Burghard-Breitner Street and make it more present and eye-catching. The existing infrastructures were integrated and taken into account in the redesign. A three-storey wooden structure is placed on the top ground floor of the existing buildings, where it creates an urban space in addition to living space in the vertical. The use of the entire roof levels results in additional loads that are carried by a kind of overhang. The addition of a lightweight timber construction allows for the addition of three storeys.
Bewegung durchs Gebäude
Bewegungsflüsse aufnehmen
Gesicht der Kreuzung
Hinterhof aktivieren
CONSTRUCTION AND MATERIALITY
The new building measures are produced from prefabricated cross laminated timber elements. The more wood used, the more ecological the CO2 footprint of the new building measure. The construction consists of solid cross-laminated timber walls, which is convincing due to its small cross-sections. In addition, the arcades are point-supported and are supported in a grid by means of beams. The load flow can be seen on the façade. Due to prefabricated elements, the erection time can be estimated to be short.
In addition, the timber construction is to be visible in the city, which is why the design calls for a pre-greyed, vertical silver fir formwork. By choosing only rift and half-rift profiles, the formwork still lies immaculately on the façade even after several years and is maintenance-free. Due to the constructive wood protection provided by the solid roof, which spans the wooden arcade construction, a natural wooden facade is provided in the arcade area.
The new building measures are produced from prefabricated cross laminated timber elements. The more wood used, the more ecological the CO2 footprint of the new building measure. The construction consists of solid cross-laminated timber walls, which is convincing due to its small cross-sections. In addition, the arcades are point-supported and are supported in a grid by means of beams. The load flow can be seen on the façade. Due to prefabricated elements, the erection time can be estimated to be short.
In addition, the timber construction is to be visible in the city, which is why the design calls for a pre-greyed, vertical silver fir formwork. By choosing only rift and half-rift profiles, the formwork still lies immaculately on the façade even after several years and is maintenance-free. Due to the constructive wood protection provided by the solid roof, which spans the wooden arcade construction, a natural wooden facade is provided in the arcade area.
ASSEMBLY / CONSTRUCTION SITE EXECUTION
In order to ensure a short and smooth construction phase, the highest level of precision and preparatory work is required, especially in the planning phase. Due to the dense neighbourhood development within the quarter, pre-production is of great advantage. The reason for this is the intensive use of the available space for traffic by pedestrians and cars. The space required for construction site utensils such as a crane should be as short as possible to ensure smooth traffic. The construction site equipment is planned for the inner courtyard. In order to keep this short period of time, intensive attention was already paid during the planning phase to thinking in modular terms and preparing building components as economically as possible. Among other things, the choice of uniform wall thicknesses is of decisive importance here. Basically, it has to be said that the more pre-produced, the more precise and accurate the pre-planning has to be. The erection itself, however, is thus kept much shorter and is of great advantage in the neighbourhood and also of great importance for smooth traffic.
In order to ensure a short and smooth construction phase, the highest level of precision and preparatory work is required, especially in the planning phase. Due to the dense neighbourhood development within the quarter, pre-production is of great advantage. The reason for this is the intensive use of the available space for traffic by pedestrians and cars. The space required for construction site utensils such as a crane should be as short as possible to ensure smooth traffic. The construction site equipment is planned for the inner courtyard. In order to keep this short period of time, intensive attention was already paid during the planning phase to thinking in modular terms and preparing building components as economically as possible. Among other things, the choice of uniform wall thicknesses is of decisive importance here. Basically, it has to be said that the more pre-produced, the more precise and accurate the pre-planning has to be. The erection itself, however, is thus kept much shorter and is of great advantage in the neighbourhood and also of great importance for smooth traffic.
ENERGY CONCEPT
Adapted to the individual lives of young people, it is planned that the building will be heated individually by means of a low-tech infrared heating system. Due to the building envelope, this type of heating is particularly economical, as the electricity for heating can be produced by the building itself. The advantage that little energy is lost to the outside in summer means that very little heat escapes through the construction in winter. This means that significantly less energy is needed for ventilation in summer and heating in winter.
Adapted to the individual lives of young people, it is planned that the building will be heated individually by means of a low-tech infrared heating system. Due to the building envelope, this type of heating is particularly economical, as the electricity for heating can be produced by the building itself. The advantage that little energy is lost to the outside in summer means that very little heat escapes through the construction in winter. This means that significantly less energy is needed for ventilation in summer and heating in winter.
SOUND INSULATION AND FIRE PROTECTION
Due to their solidity, cross laminated timber walls have particularly good sound and fire protection. The sound insulation values are improved by the double-shell wall structure. Cross laminated timber walls can be manufactured up to fire resistance class F90, which was calculated in this design with 11 cm static wall thickness.
The construction is dimensioned in such a way that the stability of the statically relevant elements is guaranteed after 90 minutes. Floating screeds and the mastic asphalt in the arcade zone are used to achieve particularly good thermal | air and impact sound insulation. A 6 cm anhydrite screed in the living areas and a cement screed in the wet rooms equip the building.
Due to their solidity, cross laminated timber walls have particularly good sound and fire protection. The sound insulation values are improved by the double-shell wall structure. Cross laminated timber walls can be manufactured up to fire resistance class F90, which was calculated in this design with 11 cm static wall thickness.
The construction is dimensioned in such a way that the stability of the statically relevant elements is guaranteed after 90 minutes. Floating screeds and the mastic asphalt in the arcade zone are used to achieve particularly good thermal | air and impact sound insulation. A 6 cm anhydrite screed in the living areas and a cement screed in the wet rooms equip the building.
