Abstract
This paper presents the results of a 3-D finite element study of welded beam-to-column moment connections in steel moment resisting frames. Computer models of connection subassemblies were developed using the general-purpose nonlinear finite element program ABAQUS. The analytical results have provided information related to basic performance and the effects that various connection parameters have on inelastic cyclic performance, thereby furthering the current understanding of welded moment connection behavior under seismic loading conditions and leading to improved design criteria. Based on the results of the study recommendations for the seismic design of connections are given related to weld access hole size and geometry, panel zone capacity, continuity plate requirements, and beam web-to-column attachment detail.
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