UNSPECIFIED. (1991) ANALYSIS OF SEMIRIGID STEEL FRAMES AND CRITERIA FOR THEIR DESIGN. JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 18 (3). pp. 227-237. ISSN 0143-974X

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Abstract

This paper reports studies on unbraced semi-rigid steel frames, carried out to determine criteria for their design. The analyses of the frames were performed by a computer program that uses a secant-stiffness approach to allow for the effect of semi-rigid connections on frame behaviour. A parameter entitled 'degree of flexibility' is introduced as a measure of the effect of semi-rigid joints on the stiffness of the frame. Within the limits of the study, it is demonstrated that second-order effects will not be significant if the semi-rigid elastic critical load exceeds ten times the design load, and the degree of flexibility is less than 50%. This last requirement was satisfied by extended end-plate beam-to-column connections. It has also been found that, under combined loading, the serviceability limit on sway is likely to control design, rather than ultimate strength.

Item Type:	Journal Article
Subjects:	T Technology > TH Building construction T Technology > TA Engineering (General). Civil engineering (General)
Journal or Publication Title:	JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
Publisher:	ELSEVIER SCI LTD
ISSN:	0143-974X
Date:	1991
Volume:	18
Number:	3
Number of Pages:	11
Page Range:	pp. 227-237
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/22514

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