University of Luxembourg

NEW TIMBER-CONCRETE COMPOSITE CONNECTION

Posted by Lidia from University of LuxembourgResponsive · Innovative Products and Technologies · Luxembourg

Summary of the technology

The cement industry accounts for 6% of the EU’s CO2 emission. In a typical reinforced concrete building, floors account for approximately half of the amount of concrete. The necessity for concrete in flooring systems can be significantly reduced by using different materials. The combination of timber and concrete has become especially interesting in the last decades.

The research is focused on timber-concrete composite (TCC) structural floors. Usually, TCC floors are made of timber beams or a deck connected to an upper concrete layer.

Nevertheless, there are many ways to combine and connect timber and concrete into one hybrid floor component. Engineering conceptions are conditioned by varying functional requirements.

University of Luxembourg

Description of the technology

In Luxembourg, there is a growing need for modular, reusable, resource efficient components in the construction industry, to serve some of the country’s strategic goals.

The research is done on a connection technology that allows destruction-free assembly and reassembly of a TCC floor and its main constituents. It does not require the use of steel shear connectors. It is composed of a specific notch embedding a concrete compression link that can be processed separately from the rest of the upper concrete layer. The connection technology relies on mechanical interlocking.

ADVANTAGES

  • This technology allows destruction-free assembly and re-assembly.
  • Manufacturing and assembly of many steel shear connectors is not necessary.
  • The notch is relatively easy to realise. It can be automated as well as performed by a craftsman with conventional tools.
  • Many different types of timber can be used, under the form of beams or decks.
  • Once recycling becomes inevitable, the parsing of different materials is straightforward.

IP STATUS

  • The elements have been pretested with finite-element analysis.
  • Laboratory tests are planned

Technology Owner

University of Luxembourg

Research & Technology Organization

Related keywords

  • Industrial manufacturing, Material and Transport Technologies
  • Construction Technology
  • Materials, components and systems for construction
  • Measurements and Standards
  • Protecting Man and Environment
  • Environment
  • Capture and Storage of CO2
  • Social and Economics concerns
  • Manufacture of construction materials, components and systems
  • emission

About University of Luxembourg

Research & Technology Organization from Luxembourg

The University of Luxembourg, founded in 2003, is a European research university with a distinctly international, multilingual and interdisciplinary character. It is a modern institution with a personal atmosphere, close to European institutions, innovative companies and the financial place.

With nearly 6,200 students and about 1,700 employees from all over the globe, the University offers a unique mix of international excellence and national relevance, delivering knowledge for society and businesses. The University has three faculties and three interdisciplinary centers:

• The Faculty of Science, Technology and Communication (FSTC)
• The Faculty of Law, Economics and Finance (FDEF)
• The Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE)
• The Interdisciplinary Centre for Security, Reliability and Trust (SnT)
• The Luxembourg Centre for Systems Biomedicine (LCSB)
• Luxembourg Centre for Contemporary and Digital History (C²DH)

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