Geometrical Aspects of Lateral Bracing Systems: Where Should the Optimal Bracing Point Be?
Publication: Journal of Structural Engineering
Volume 140, Issue 9
Abstract
This paper describes structural optimization formulations for trusses and applies them to size and geometrically optimize lateral bracing systems. The paper provides analytical solutions for simple and limit cases and uses numerical optimization for cases where analytical solutions are not available. The analysis is based on small displacements, constant or no connection costs, static loads, and elastic behavior. This work provides guidance to improve the common engineering practice of locating the bracing point at the middle or at the top of the bay/story panel.
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Acknowledgments
The authors appreciate constructive comments and insightful suggestions from the anonymous reviewers. We are thankful to the support from the US National Science Foundation under grant CMMI #1335160. We also acknowledge the support from SOM (Skidmore, Owings and Merrill LLP) and from the Donald B. and Elizabeth M. Willett endowment at the University of Illinois at Urbana-Champaign. Any opinion, finding, conclusions or recommendations expressed here are those of the authors and do not necessarily reflect the views of the sponsors.
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Information
Published In
Journal of Structural Engineering
Volume 140 • Issue 9 • September 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 16, 2013
Accepted: Sep 25, 2013
Published online: May 8, 2014
Published in print: Sep 1, 2014
Discussion open until: Oct 8, 2014
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