Behavior of Harp Bracings in Rigid Frame Metallic Bays
Publication: Journal of Structural Engineering
Volume 131, Issue 9
Abstract
Simple two-dimensional frames are normally used when building bays. These frames are placed in series and held longitudinally with bracings. These two directions, transversal and longitudinal, are independent of each other. Thus, the transverse frame bears loads in its plane with no help from the longitudinal bracings. In the case of transverse rigid frames, with the typology described, the columns act as bending brackets, requiring large-size columns and large foundations. Against the traditional typology, an alternative can be the usage of special on-roof bracings called “harp bracings.” With these harp bracings, the loads received by the columns are partially transmitted to the endwall frame. In this way, the columns tend to behave as encastered-supported elements, which require smaller section size and foundations. This paper presents a comparative study between rigid frames, solved with traditional bracings, and harp bracings. Spans from are considered, as well as bay lengths from . The contrast between these bracing systems is made using the budgets for the whole bay frame, including metallic frame and foundations. The results show the advantages of the harp bracings versus the traditional bracing.
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Acknowledgements
The writers would like to express their appreciation to Verónica Chiquero and María Tornero for their assistance in translating the manuscript.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 9 • September 2005
Pages: 1397 - 1403
Copyright
© 2005 ASCE.
History
Received: Sep 4, 2002
Accepted: Nov 30, 2004
Published online: Sep 1, 2005
Published in print: Sep 2005
Notes
Note. Associate Editor: Mark D. Bowman
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