A proposal to adjust the design approach for the diaphragm action of shear panels according to Schardt and Strehl in line with European regulations

Kathage, Karsten; Lindner, Joachim; Misiek, Thomas; Schilling, Sivo

doi:10.1002/stco.201310014

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…At sheet-to-purlin fasteners at transverse edges (supports for the sheeting panels), it is necessary to consider both shear forces due to shear flow or load introduction and tensile forces due to prying action caused by the sway deformation. The shear forces due to shear flow are calculated using (5) with e Q usually equivalent to the pitch b R and shear flow T V,Ed at the ultimate limit state. The shear forces due to load introduction, acting perpendicular to those caused by shear flow, have to be added by vector sum.…”

Section: The Schardt and Strehl Approachmentioning

confidence: 99%

“…The "combined approach", which basically goes back to Baehre and Wolfram [9], was first presented in [5]. Some more information about preparation for practical use can be found in [11].…”

Section: The "Combined Approach" 41 Basic Design Proceduresmentioning

confidence: 99%

“…The calculated diaphragm strength is also shown, in this case governed by the strength of the connections at seams. Full details of this example can be found in [5].…”

Section: Comparison Of Current Approachesmentioning

confidence: 99%

“…Whereas the Bryan/Davies approach claims to be more realistic in terms of diaphragm stiffness, the Schardt/Strehl approach is much easier to use. Recently, an approach combining the advantages of both was published [5], and that will be presented and discussed here.…”

Section: Introductionmentioning

confidence: 99%

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The ”combined approach“ for the design of shear diaphragms made of trapezoidal profile sheeting

Misiek

Huck²,

Käpplein

2017

Steel Construction

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Diaphragms made of trapezoidal profile sheeting are often used to stabilize members or work as bracing to transfer horizontal loads (wind or seismic loads) to the ground. In Europe there are currently two approaches for the design of these shear diaphragms, both often denoted by the names of their corresponding developers: Schardt and Strehl and Bryan and Davies. Although the mechanical background to calculating the diaphragm stiffness is more or less identical in both approaches, there are differences in the level of detailing, i.e. in the number of parameters regarded as significant for practical design. Generally, the Schardt/Strehl approach was reworked much more and is therefore easier to use in practical design. On the other hand, the Bryan/Davies approach is much more realistic regarding the failure modes (shear buckling, failure of fasteners) and loadbearing capacity. This paper discusses the differences and similarities in detail, makes an assessment and highlights the particular advantages. Recently, a new approach was elaborated based on work previously carried out by Baehre and Wolfram and taking into account new developments and findings. This "combined approach" presented here combines the advantages of the Schardt/Strehl and Bryan/Davies approaches as given above. The paper includes a comparison with test results with regard to both diaphragm stiffness and loadbearing capacity. Detailed information is given on how to elaborate the sheetingrelated parameters in tables, allowing for easy use in practical design. This is of special importance for implementation in practical design and in relation to the further development of the Eurocodes.

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Section: The Schardt and Strehl Approachmentioning

confidence: 99%

“…The "combined approach", which basically goes back to Baehre and Wolfram [9], was first presented in [5]. Some more information about preparation for practical use can be found in [11].…”

Section: The "Combined Approach" 41 Basic Design Proceduresmentioning

confidence: 99%

“…The calculated diaphragm strength is also shown, in this case governed by the strength of the connections at seams. Full details of this example can be found in [5].…”

Section: Comparison Of Current Approachesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations