Experimental Study of Local Buckling, Overstrength, and Fracture of Links in Eccentrically Braced Frames
Publication: Journal of Structural Engineering
Volume 131, Issue 10
Abstract
A total of 23 tests were conducted to study the cyclic loading performance of links in steel eccentrically braced frames. The objectives of these tests were to reevaluate flange slenderness limits and overstrength factors for links. The effect of loading history on link performance was also investigated. Link specimens were constructed from five different wide-flange sections, all of ASTM A992 steel, with various lengths ranging from short shear yielding links to very long flexural yielding links. In addition to providing data on the effects of flange buckling and overstrength, these tests also showed some unexpected failure modes. The paper provides an overview of this experimental investigation, describing the overall research program, as well as details of the test specimens and test results. The paper concludes with a number of design recommendations for links in eccentrically braced frames.
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Acknowledgments
The writers gratefully acknowledge primary funding provided for this project by the American Institute of Steel Construction (AISC) and supplemental funding from the National Science Foundation (Grant No. NSFCMS-0000031). The writers would like to particularly thank Tom Schlafly of AISC for his support and assistance throughout this project. The experimental work reported herein was conducted as part of a joint project with companion analytical studies at the University of California at San Diego (UCSD). The writers thank Professor Chia-Ming Uang and Paul Richards at UCSD for their assistance, participation, and collaboration in this project. The writers also thank James Malley, Subhash Goel, and Tom Sabol for their assistance and advice on this project.
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 10 • October 2005
Pages: 1526 - 1535
Copyright
© 2005 ASCE.
History
Received: Feb 10, 2004
Accepted: Oct 28, 2004
Published online: Oct 1, 2005
Published in print: Oct 2005
Notes
Note. Associate Editor: Donald W. White
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