Download or read book Evaluation, Repair, Modification and Design of Welded Steel Moment Frame Structures written by Ronald O. Hamburger and published by . This book was released on 1997-10-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides engineers and building officials with timely information and guidance resulting from ongoing problem focused study of the behavior of moment-resisting steel frame structures. The Northridge earthquake of Jan. 17, 1994 dramatically demonstrated that the prequalified, welded beam-to-column moment connection commonly used in the construction of welded steel moment resisting frames in the period 1965-1994 was much more susceptible to damage than previously thought. This report provides problem-focused study of the seismic performance of welded steel moment connections and develops interim recommendations for professional practice.