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A simplified method for instability and second‐order load effects of framed structures: Story‐based approach
Author(s) -
Gunaydin Ayten,
Aydin Ruhi
Publication year - 2019
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.1655
Subject(s) - instability , column (typography) , order (exchange) , computer science , structural engineering , stability (learning theory) , constant (computer programming) , mathematics , frame (networking) , engineering , mechanics , programming language , physics , finance , machine learning , economics , telecommunications
Summary Several building codes such as ANSI/AISC 360‐16 and EC3 EN 1993‐1‐1 require the use of a proper design method to consider instability and second‐order load effect problems for individual system elements and the entire structural system. Various methods are available to assess stability. All of these methods should consider P ‐Δ and P ‐δ effects (second‐order effects). The following calculation procedures are presented in this study: (a) a simplified method is developed for P‐ Δ and P‐δ analysis in regular frames under the effect of constant axial loads to obtain story drifts and end moments ; (b) this method can be applied to an entire building or any individual story, that is, story‐based design is possible; and (c) column effective length factors are obtained for individual columns. In addition, design tables are presented.