Lateral buckling of doubly symmetric beams containing openings

V. Thevendran, N. E. Shanmugam

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

When a slender beam is transversely loaded in the plane of its greatest flexural rigidity, it may buckle laterally at a critical load. It is common practice to provide web openings in beams for the passage of service ducts and pipings, for inspection purposes in beam structures, and for other reasons. The presence of web openings not only reduces the ultimate strength of beams, but also the lateral-buckling capacity. This paper presents a numerical method, based on the energy approach, to predict the critical lateral-buckling loads of slender, doubly symmetric beams containing unreinforced web openings. The beams are either cantilevered or simply supported and contain openings along their centerlines. The critical loads evaluated numerically are compared with the values obtained experimentally. The study shows good agreement between the numerical and experimental values.

Original languageEnglish
Pages (from-to)1427-1441
Number of pages15
JournalJournal of Engineering Mechanics
Volume117
Issue number7
Publication statusPublished - Jul 1991
Externally publishedYes

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Buckling
Rigidity
Ducts
Loads (forces)
Numerical methods
Inspection

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Thevendran, V., & Shanmugam, N. E. (1991). Lateral buckling of doubly symmetric beams containing openings. Journal of Engineering Mechanics, 117(7), 1427-1441.

Lateral buckling of doubly symmetric beams containing openings. / Thevendran, V.; Shanmugam, N. E.

In: Journal of Engineering Mechanics, Vol. 117, No. 7, 07.1991, p. 1427-1441.

Research output: Contribution to journalArticle

Thevendran, V & Shanmugam, NE 1991, 'Lateral buckling of doubly symmetric beams containing openings', Journal of Engineering Mechanics, vol. 117, no. 7, pp. 1427-1441.
Thevendran, V. ; Shanmugam, N. E. / Lateral buckling of doubly symmetric beams containing openings. In: Journal of Engineering Mechanics. 1991 ; Vol. 117, No. 7. pp. 1427-1441.
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