Experimental and Numerical Investigation of Composite Action of Steel Concrete Slab

Experimental and Numerical Investigation of Composite Action of Steel Concrete Slab

Peer-reviewed article not indexed in WoS or Scopus

Thin-walled cold formed corrugated steel sheet with embossments, used in composite steel concrete slab, is a modern and effective construction. The steel sheet is used as a permanent formwork and as a load bearing member after hardening of concrete as well. The prestressed embossments are crucial to ensure a composite action. However, its load bearing capacity is influenced by many factors and it is not possible to be determined without using expensive and time consuming tests of the whole slab in laboratory. This paper is focused on composite action using this type of shear connection and its behaviour under different types of loading. Four-point bending tests and vacuum tests were performed on the whole span slab. Additional small-scale shear test help us to understand the shear behaviour of thin-walled steel sheet in ultimate limit state. The data from the tests make possible to set up and calibrate numerical models. These models can then facilitate pointing out the main factors which influence the load bearing capacity of this type of structure.

Thin-walled cold formed corrugated steel sheet with embossments, used in composite steel concrete slab, is a modern and effective construction. The steel sheet is used as a permanent formwork and as a load bearing member after hardening of concrete as well. The prestressed embossments are crucial to ensure a composite action. However, its load bearing capacity is influenced by many factors and it is not possible to be determined without using expensive and time consuming tests of the whole slab in laboratory. This paper is focused on composite action using this type of shear connection and its behaviour under different types of loading. Four-point bending tests and vacuum tests were performed on the whole span slab. Additional small-scale shear test help us to understand the shear behaviour of thin-walled steel sheet in ultimate limit state. The data from the tests make possible to set up and calibrate numerical models. These models can then facilitate pointing out the main factors which influence the load bearing capacity of this type of structure.

Embossment; composite slab; thin-walled; steel sheet; design method

Embossment; composite slab; thin-walled; steel sheet; design method

HOLOMEK, J.; BAJER, M.

2013

26.09.2012

Elsevier

1877-7058

Procedia Engineering

2012

40

United Kingdom of Great Britain and Northern Ireland

143

147

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