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This paper presents a numerical study using the finite element method to evaluate the seismic performance of bolted connections within a steel moment-resisting frame. The accuracy of the numerical models was validated using past experimental studies. Three dimensional connection models were constructed using the results of material tests and consideration of contact elements, bolt pretension, nonlinear kinematic hardening algorithms, etc. Two types of numerical models were proposed, one using solid and contact elements, and the other using shell elements and connectors to effectively reduce the computational cost. The rationality of the solid contact model, the shell connector model, and the nonlinear kinematic hardening algorithm was demonstrated via cyclic loading tests. The local responses, including brittle fracture, were analyzed utilizing frequently used fracture indices such as TI and RI, where the analysis results are discussed by comparison to the relevant test results.

Seismic Performance Prediction for Bolted Beam-Column Connection Using Finite Element Modeling