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- W2023931491 abstract "This paper examines the accuracy of a set of equations for computing Displacement Participation Factors (DPFs) for beam–column subassemblages of steel moment resisting frame buildings. These factors allow the analyst to determine how the entire subassemblage or individual components of a subassemblage contribute to a given structural displacement. Additionally, the component’s contribution to displacement may be evaluated in terms of sources of axial, flexural, or shear deformation. When applied to a set of 12 isolated subassemblages, it was shown in Part 1 of the paper that deformations in the beam–column joint are very significant, and that flexural deformation in the joint, which is often ignored, should be considered in all analyses. The total displacement predicted through the use of the DPFs correlates extremely well with the results of detailed three dimensional finite element analyses of the same subassemblages. However, it was also shown that there is considerable uncertainty in the bending moments and moments of inertia that are used to compute joint flexural deformations. The objective of this paper, which is the second part of a two-part paper, is to further investigate the accuracy of the DPF expressions developed in Part 1. This is done by computing DPFs from the results of detailed three dimensional finite element analysis, and comparing these to those computed through the use of the simple expressions. The results of the analysis show that the joint flexural deformations are accurately predicted by the simple DPF expressions, but that this accuracy arises from compensating “errors” in the simplified analysis. It is also shown that the use of beam flange continuity plates has a marginal effect on computed displacements. The paper ends with recommendations for using the simplified expressions for computing subassemblage deformations, and for including such deformations in structural analysis of steel frame and tube structures." @default.
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- W2023931491 date "2008-01-01" @default.
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- W2023931491 title "Sources of elastic deformations in steel frame and framed-tube structures: Part 2: Detailed subassemblage models" @default.
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- W2023931491 doi "https://doi.org/10.1016/j.jcsr.2007.05.007" @default.
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