کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
309443 513604 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new approach for thin-walled member analysis in the framework of GBT
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A new approach for thin-walled member analysis in the framework of GBT
چکیده انگلیسی

A new approach is illustrated for the cross-sectional analysis to be performed in the context of the Generalised Beam Theory (GBT). The novelty relies in formulating the problem in the spirit of Kantorovich’s semi-variational method, namely using the dynamic modes of an unconstrained planar frame as in-plane deformation modes. Warping is then evaluated from the post-processing of these in-plane modes, thus reversing the strategy of the classical GBT procedure. The new procedure does not require several steps of the classical algorithm for the determination of the conventional modes, in which bending, shear and local modes are evaluated separately, and is applicable indifferently to open, partially-closed and closed sections. The efficiency and ease of use of the method are outlined by means of two examples, aimed to describe the linear–elastic behaviour of thin-walled members.


► New approach for the derivation of the conventional deformation modes for GBT analysis.
► Novelty relies in using the dynamic modes of an unconstrained planar frame.
► Procedure applicable to open, partially-closed and closed sections.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 49, Issue 11, November 2011, Pages 1404–1414
نویسندگان
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