Showcase 2021

25-27 de novembro de 2021 | Marina da Glória - Rio de Janeiro, RJ

 

 

Transformable Hybrid-Timber Construction 

Transformable structures with neutral multipurpose floor plans are required in urban areas in order to be able to react flexibly to the demand for housing, office space and parking. Hybrid-timber construction also helps to reduce greenhouse gas emissions and increase the wood construction quota. 

Objective

The aim of the research project is to develop a method of transformable hybrid-timber construction. The architecture and construction are thereby designed in such way that a complete or partial transformation of a car park into an office building, residential building or a combination of the two is possible without altering the primary structure of the building. A standardized timber frame made of beech wood and flexible expansion modules made of hardwood allow for a range of different applications. Subsequent densification options in the form of adding annexes or additional floors to the building are already taken into account in the planning of the supporting structure and the roof design. At the end of a period of use in a given form, the wooden components and wood-based materials can be dismantled, removed and reused without being destroyed.

This form of high-quality architectural and structural hybrid-timber construction contributes to the reduction of greenhouse gas emissions and an increase in the wood construction quota.

Objective
The aim of the research project is to develop a method of transformable hybrid-timber construction. The architecture and construction are thereby designed in such way that a complete or partial transformation of a car park into an office building, residential building or a combination of the two is possible without altering the primary structure of the building. A standardized timber frame made of beech wood and flexible expansion modules made of hardwood allow for a range of different applications. Subsequent densification options in the form of adding annexes or additional floors to the building are already taken into account in the planning of the supporting structure and the roof design. At the end of a period of use in a given form, the wooden components and wood-based materials can be dismantled, removed and reused without being destroyed.

This form of high-quality architectural and structural hybrid-timber construction contributes to the reduction of greenhouse gas emissions and an increase in the wood construction quota.

Tasks

• Development of a resource-friendly, material-optimized construction system using hardwood and softwood with the potential for neutral multipurpose structures that enable different stages of expansion.
• Analysis of the transformable use of permanent building support structures with regard to fire protection requirements
• Development of connections and design rules for support-girder connections
• Research with regard to the durability and longevity of coated cross-laminated timber systems, using acetylated beech wood, directly exposed to the elements
• Analysis of possibilities to increase the availability of construction timber made of beech wood
• Optimization of the life cycle assessment of construction products with the help of building information modelling

Status Quo

In the future, 80% of the population will live in large cities (source: Statista, In Städten lebende Bevölkerung in Deutschland und weltweit bis 2030 (Population Living in Cities in Germany and Worldwide by 2030) | Statista). Besides densification measures, there will therefore also be a need for transformable structures with neutral multipurpose floor plans in urban areas in order to be able to react flexibly to the demand for housing, office space and parking. In addition, the proportion of timber construction in the building industry will have to be increased in order to protect the climate, conserve fossil resources and contribute to long-term CO2 storage with timber structures.

Furthermore, hardwood, in particular, requires solutions for better use than to date. As forests adapt to climate change, there will be an increase in hardwood, particularly beech wood, during the long term. The development of (beech) hardwood products with high load-bearing capacity will support this development, as will the growing acceptance for high-quality wooden architecture in society.

Advantages

The unrelenting pace of our time will make neutral multipurpose building frameworks an increasingly important factor for investors in major construction projects. This requires flexible floor plans or expansion stages that allow buildings to be used as warehouses, car parks, housing, offices, shops, workshops or exhibition areas.

If standardized building frameworks are constructed in a modular design, then functional changes, combined with transformable expansion systems, can be implemented easily and cost-effectively. Their low weight also allows wooden components to be variably transformed or moved within closed room structures using basic lifting equipment. The longevity of the building without any loss of value is guaranteed by its flexibility and modularity, providing investors with a high degree of economic security.

The construction of a innovative beech wood timber framework that allows for a wide variety of expansion stages, aims to show how functional and economical such transformable structures can be. The planned 3-field and 4-storey building framework will be built for three types of use: parking, working, living. The demonstration building shows the public sector and private investors how wood can be used for environmentally-friendly and future-oriented construction.

Duration: November 2019 – October 2021

Project data and partners

→ Subproject 1: Nutzungsneutrale Tragstruktur: Entwurf und Konstruktion standardisierter Holzbausysteme von Decke, Wand und Stütze für differenzierte Ausbaustufen. Systemvergleiche mit BIM und Lebenszyklusanalyse, Technische Universität Kaiserslautern – Fachbereich Architektur – Fachgebiet Tragwerk und Material, Fachgebiet Baukonstruktion 1 und Entwerfen, Fachbereich Bauingenieurwesen, Fachgebiet Statik und Dynamik der Tragwerke
→ Subproject 2: Bauteilverbindungen für mehrgeschossige Tragwerke aus Buchen-Furnierschichtholz, Karlsruher Institut für Technologie (KIT) – Holzbau und Baukonstruktionen
→ Subproject 3: Ökobilanzierungen wandelbarer Strukturen unter Berücksichtigung von Recycling und Kaskadennutzung, Albert-Ludwigs-Universität Freiburg – Juniorprofessur für Nachhaltiges Energie- und Stoffstrommanagement
→ Subproject 4: Brandschutzkonzept für flexible Nutzungen in mehrgeschossigen Bauwerken, Technische Universität München – Lehrstuhl für Holzbau und Baukonstruktion

Projektlinks:

Teilvorhaben 1: 2218WK07A3
Teilvorhaben 2: 2218WK07B3
Teilvorhaben 3: 2218WK07C3
Teilvorhaben 4: 2218WK07D3

Beech laminated veneer lumber with offset steps as a component connection.
Photo: Sina Glattacker

Beech laminated veneer lumber with offset steps after stress test.
Photo: Sina Glattacker 

Follow by Email
LinkedIn
Share