Policy Guide To Steel Moment Frame Construction

Prior to the 1994 Northridge and 1995 Kobe earthquakes, engineers believed that steel moment-frames would bend under earthquake loading, but not break. As a result, this became one of the most common types of construction used for major bldgs. in areas subject to severe earthquakes. The discovery of the potential for fracturing in these frames called to question the adequacy of the building code provisions dealing with this type of construction and created a crisis of confidence. In response, FEMA issued this policy guide to provide a non-technical summary of valuable information, an understanding of the risk associated with steel moment-frame buildings, and the practical measures that can be taken to reduce this risk. Illustrations.