Seismic behavior analysis of steel moment frames with opening on beam web

Abstract：In order to study seismic behavior of steel moment frames with opening on beam web, nonlinear finite element analysis for ten samples with different opening position and different opening diameter was performed in the paper.Analysis indicates that reasonable opening on beam web can ensure the plastic hinge far away from the joint panel zone under severe earthquakes.It increased frames' ductility, energy dissipation capacity and low frame strength decreased.So, steel moment frames with opening on beam has well seismic-resistant behavior.Finally, suggestions on design and fabrication are presented based on the finite element simulation results.

Keyword：opening on beam web;finite element;seismic behavior;ductility;