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During the 17 January, 1994 Northridge earthquake a number of welded moment resisting frames (WMRF) developed cracks in their beam-column connections. In this work, the seismic performance of a four-story, a 14-story and a 27-story moment resisting frame damaged during the Northridge earthquake is analyzed in order to assess the seismic vulnerability of damaged WMRF's. Analytical models of planar...
The design of civil structures to assure stability is generally carried out within the framework of static stability analysis, even when the expected excitation scenario involves dynamic response. We explore the issues of dynamic stability of inelastic systems subject to base motion by examining a single degree-of-freedom model problem. This paper gives a general overview of the dynamic stability...
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