Generic modelling of composite steel-concrete slabs subjected to shrinkage, creep and thermal strains including partial interaction

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Show simple item record Bradford, Mark en_US
dc.contributor.editor en_US 2011-02-07T06:23:09Z 2011-02-07T06:23:09Z 2010 en_US
dc.identifier 2009006458 en_US
dc.identifier.citation Bradford Mark 2010, 'Generic modelling of composite steel-concrete slabs subjected to shrinkage, creep and thermal strains including partial interaction', Elsevier, vol. 32, no. 5, pp. 1459-1465. en_US
dc.identifier.issn 0141-0296 en_US
dc.identifier.other C1 en_US
dc.description.abstract Composite slabs in buildings that comprise permanent and integral thin-walled steel shuttering at the soffit of a reinforced concrete slab are subjected to two types of indirect (or non-mechanical) straining effects: shrinkage straining and thermal straining. Both of these indirect strains result in axial and transverse deformations of the slab, with those caused by concrete shrinkage resulting in long-term effects for which the quasi-viscoelastic properties of the concrete component (including creep and aging) are important. Typical shrinkage and thermal straining of slabs produces warping-type deformations through the slab thickness because indirect strain gradients are induced. For thermal strains, these deformations occur because of the typical temperature gradient through the slab thickness, while for shrinkage straining they occur because of the prevention of free moisture egress through the impervious steel sheeting. Surprisingly, little appears in the published literature on rational modelling of the behaviour of composite slabs subjected to these types of straining, despite its practical importance and significance, and the proliferation of composite slabs in contemporary building structures. This paper presents a model of both of these effects based on fundamental engineering mechanics, and prescriptive equations are derived based on the principle of virtual work. These equations are validated and used to demonstrate their scope by analysing a representative composite slab. The formulation may be used to predict deflections, and stresses in the concrete due to restrained shrinkage which may lead to cracking of the slab. en_US
dc.language en_US
dc.publisher Elsevier en_US
dc.relation.isbasedon en_US
dc.title Generic modelling of composite steel-concrete slabs subjected to shrinkage, creep and thermal strains including partial interaction en_US
dc.parent Engineering Structures en_US
dc.journal.volume 32 en_US
dc.journal.number 5 en_US
dc.publocation UK en_US
dc.identifier.startpage 1459 en_US
dc.identifier.endpage 1465 en_US FEIT.Faculty of Engineering & Information Technology en_US
dc.conference Verified OK en_US
dc.for 090500 en_US
dc.personcode 109670 en_US
dc.percentage 100 en_US Civil Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Composite slabs; Creep; Deflections; Indirect strains; Partial interaction; Shear connection; Shrinkage; Thermal en_US
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
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