Seismic demands of steel moment resisting frames with inelastic beam‐to‐column web panel zones

Abstract This paper intends to provide quantitative seismic response characteristics of steel moment resisting frames (MRFs) with inelastic beam‐to‐column panel zone joints. Two modeling approaches are proposed for this purpose along a methodology consider the fracture potential at bottom beam flange in MRFs due kinking. Both approaches, which validated available experiments, preserve behavioral insights zones. Nonlinear static and dynamic analyses then conducted quantify demands 32 prototype while their zones exhibit various levels deformations. Engineering demand parameter hazard curves developed interpret results risk‐targeted performance. The demonstrate that shear distortions 10 15 times distortion yield, , have mean annual frequency collapse ranging from is up two lower than corresponding code‐compliant (i.e., It shown deformations zones, (a) enjoy 50% reduction residual story drift ratios design basis earthquake; (b) connections do not experience fractures kinking; (c) local buckling beams very limited even low probability occurrence earthquakes. above hold true when current detailing fabrication practice employed. findings implications on post‐seismic repairability MRFs.