Seismic Solutions for Steel Frame Buildings

by Virginia Fairweather, Editor in Chief; Civil Engineering Magazine, ASCE World Headquarters, 345 East 47th Street, New York City, NY.,


Serial Information: Civil Engineering—ASCE, 1996, Vol. 66, Issue 3, Pg. 40-43


Document Type: Feature article

Abstract: After the Northridge Earthquake, damage in steel moment resisting frame connections stunned engineers. Now those engineers are scrambling to find and test new kinds of connections. This is a status report on their efforts. A testament to the U.S. way of doing things, is the way Michael Engelhardt, professor of civil engineering at the University of Texas at Austin, describes the current search for ways to improve steel moment resisting frames (smrf) connections. The post-Northridge revelations of cracks in these frames, and the subsequent Uniform Building Code ban on using the pre-Northridge connection, opened a window of opportunity, in Engelhardt's words. His lab and those of other researchers have been busy ever since the 1994 earthquake researching and testing variations of moment frames that divert seismic forces from connections.

Subject Headings: Connections | Cracking | Damage | Earthquakes | Seismic design | Steel frames

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