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Performance of connections for prefabricated timber-concrete composite floors
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-5907-7788
Department of Architecture and Planning, University of Sassari, Alghero.
2008 (English)In: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873, Vol. 41, no 9, p. 1533-1550Article in journal (Refereed) Published
Abstract [en]

Timber-concrete composite beams and slabs require interlayer connectors, which provide composite action in the cross-section. A range of mechanical connectors is available on the market with an extensive variety of stiffness and strength properties, which are fundamental design parameters for the composite structure. Another crucial parameter is the cost of the connector, including the labour cost, that if too high may prevent the use of the composite system. In order to reduce the construction cost and make timber-concrete structures more widespread on the market, it is believed that a high degree of prefabrication should be achieved. For a simple and cost effective construction process, the use of "dry" connections, which do not require the pouring and curing of concrete on site, may represent a possible solution. This paper reports the outcomes of an experimental programme aimed to investigate a number of different mechanical "dry-dry" connectors previously embedded into a prefabricated concrete slab. Direct shear tests on small blocks made of a glulam segment connected with a prefabricated concrete slab were performed. The shear force-relative slip relationships were measured and all the relevant mechanical properties such as slip moduli and shear strengths were calculated. It was found that some of the new developed connection systems for prefabricated concrete slab can perform as satisfactorily as those for cast-in-situ slabs, with the additional benefit of being relatively inexpensive.

Place, publisher, year, edition, pages
2008. Vol. 41, no 9, p. 1533-1550
National Category
Building Technologies
Research subject
Timber Structures
Identifiers
URN: urn:nbn:se:ltu:diva-4940DOI: 10.1617/s11527-007-9346-6ISI: 000260012300006Scopus ID: 2-s2.0-54149083234Local ID: 2f0787c0-65de-11dc-8a3f-000ea68e967bOAI: oai:DiVA.org:ltu-4940DiVA, id: diva2:977814
Note
Validerad; 2008; 20070918 (elzluk)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-08-07Bibliographically approved

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Lukaszewska, ElzbietaJohnsson, Helena

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