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Analysis of shear deflections of deep composite box-type of beams using different shear deformation models
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-0336-6433
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-7191-5609
2015 (English)In: Computers & structures, ISSN 0045-7949, E-ISSN 1879-2243, Vol. 155, p. 42-53Article in journal (Refereed) Published
Abstract [en]

The deflection of deep box-type elements due to shear deformations is treated. A closed-form expression for the shear correction factor is derived by using an energy approach. The high accuracy and reliability of the developed procedure is demonstrated by comparing its results with accurate 3-D finite element results and also with the results of the conventional theories of Timoshenko with constant shear coefficient and of Reddy–Bickford applied to this kind of cross-section. A comprehensive and comparative parametric study is presented to investigate the effects of various mechanical properties and geometric dimensions for the different models. Unlike the higher-order shear deformation theories, which are accurate only for beams with rectangular cross-sections, there is a very good agreement between the results of the proposed method and the 3-D FE model. Clearly, the proposed energy method is applicable to more complicated cross-sections, including those with abrupt changes in the geometry, e.g. due to holes.

Place, publisher, year, edition, pages
2015. Vol. 155, p. 42-53
National Category
Building Technologies
Research subject
Timber Structures
Identifiers
URN: urn:nbn:se:ltu:diva-10613DOI: 10.1016/j.compstruc.2015.02.025ISI: 000356738400005Scopus ID: 2-s2.0-84930375254Local ID: 97154fbb-2466-4e99-855a-bda802515228OAI: oai:DiVA.org:ltu-10613DiVA, id: diva2:983558
Note
Validerad; 2015; Nivå 2; 20150330 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Girhammar, Ulf ArneAtashipour, Seyed Rasoul
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