TU BRAUNSCHWEIG

Building in Existing Structures: Potentials of lightweight design of steel structures

Current Situation

The sustainable utilization of urban areas and existing buildings is currently becoming extremely important. Studies prove that aspects such as the refurbishment and restoration of existing buildings will be the challenge of the future. Urban concentration, modernization and redevelopment will lead to a growing market and will initiate manifold fields of application for lightweight steel structures. The enormous advantages of steel can only be utilized if a wide fundamental knowledge basis, planning tools, and criteria for a sustainability assessment are provided for architects and engineers. These planning instruments must meet interdisciplinary and holistic requirements as well as city planning and architectural demands.

Objective

The project aims at the development of planning instruments for involved stakeholders within a holistic approach including aspects of building physics, structural solutions, building process concerns, real estate assessment and sustainability assessment within the life cycle. A  key aspect is to support the decision if and to which extent an existing building should be preserved to reach a sustainable solution.

The focus is on office buildings from the 1960s and 1970s.

Approach

In contrast to related studies, the project follows a bottom-up approach. Accordingly, three buildings have been chosen as object to case studies:

  • INSTITUTE OF PHYSICS TU DORTMUND, 1972, Werner Lehmann
  • IBM-building hanNover, 1967, dieter oesterlen
  • INSTITUTE OF GEO Sciences UNIV. Cologne, 1962, staatsneubauamt

Together with the Karlsruhe Institute of Technology (KIT), the IWF is mainly concerned  with the sustainability assessment of the developed refurbishment and restoration concepts and in succession with the derivation of general criteria. Tasks will include:

  • LIFE CYCLE ASSESSMENT (LCA)
    Application of Life Cycle Assessment in order to compare the environmental impacts of “refurbishment/restoration” and “demolition and new construction” scenarios as well as to assess the “ecological backpack” of an existing building.
  • LIFE CYCLE COSTING (LCC)
    The economic benefit of the proposed building activities is analyzed using Life Cycle Costing and comparing their overall costs from owner and resident perspective.
  • CONSIDERATION OF TECHNICAL, CULTURAL & SOCIAL ASPECTS
    Existing building assessment schemes will be analyzed regarding their theoretical and practical relevance for existing structures to develop a set of criteria, e.g. for  a “hot spot analysis”.

Project partners

  • Technische Universität Dortmund: Lehrstuhl Stahlbau, Lehrstuhl Baukonstruktion, Lehrstuhl Baubetrieb und Bauprozessmanagement
  • Gemeinnützige Forschungsgesellschaft GmbH, Institut für Trocken- und Leichtbau
  • Technische Universität Darmstadt: Lehrstuhl für Tragwerksentwicklung
  • KIT Karlsruher Institut für Technologie: Versuchsanstalt für Stahl, Holz und Steine, Abteilung Stahl- und Leichtmetallbau
  • Technische Universität Braunschweig, Institut für Werkzeugmaschinen und Fertigungstechnik, Abteilung Produkt- und Life-Cycle-Management

Project period:

04/2010-05/2013

Funding:

Federal Ministry of Economics and Technology

Internet:

http://www.nasta-forschung.de/


  last changed 05.11.2019
TU_Icon_E_Mail_1_17x17_RGB pagetop