Title: The research of the effective length for the column in stability analysis of steel frames with semi-rigid connection
Abstract: The chapter discusses the effective length factor of columns in semi-rigid steel frames on the base of the effective length concept in stability design of steel frames. The chapter presents a modified formula of unbraced steel frames with a semi-rigid connection by the modified factor of beam-to-column linear stiffness ratio adopted. The form of the formula is exactly the same as that of rigidly connected steel frames that have been established in reference. The semi-rigid connection is stimulated by a rotational spring. It is shown that the effective length factors increase by 6–10% because of the flexibility of the connections. The columns in frame except the bottom are semi-rigid connected with the beams in the two ends, and the factors of these columns increase by 10% as compared to the rigid connection. Thus, the effect of semi-rigid connections should be considered in the stability analysis and design of steel frames.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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