Negative Shear Lag in Framed‐Tube Buildings
Publication: Journal of Structural Engineering
Volume 120, Issue 11
Abstract
Occurrence of negative shear lag in framed‐tube buildings under lateral loading is reported in the literature, but explanation of its origin and comprehensive studies of it are lacking. The present paper separates column axial‐force distribution in a story into two modes; one contributing to the positive shear lag and the other to the negative shear lag. The net shear lag, positive or negative, is the resultant of the axial‐force distributions in these modes. Further, an analogy between shear‐lag behavior of a uniform box girder and uniform framed‐tube building is established by interpreting structural parameters occurring in the closed‐form solution of a box girder in terms of those of the framed‐tube building. Adequacy of the proposed analogy is demonstrated. Structural parameters governing the shear‐lag behavior are identified, and their effect and of different loading types is studied.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 11 • November 1994
Pages: 3105 - 3121
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Sep 15, 1993
Published online: Nov 1, 1994
Published in print: Nov 1994
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