Nonlinear Numerical Evaluation of Dry Precast Beam Column Connection with Embedded Bolts

Abstract

Precast dry connected frame systems are faster to construct with less erection efforts. These frame systems are considered non-emulate frame systems. The lateral load behaviour of these connections needs to be evaluated to ensure the desired performance. The performance of these dry connections with embedded bolts proposed was studied by finite elemental analysis. The nonlinear FEM analysis results obtained by considering appropriate elements, and material definition parameters, including failure and interactions, were validated with the experimental results available in the literature. The rigidity of the joints was evaluated using the beamline method. The beamline plot unveils that the joints can be classified as rigid joints. The results reveal that the joints under study have satisfactory stiffness degradation, energy dissipation characteristics, and failure modes like monolithic connection. The numerical procedure developed provide an efficient solution for performance evaluation and seismic design of these precast joints

Finite element analysis of precast concrete beam‐column joint based on bolt connection

“…In the field of precast concrete beam-column joints based on the bolt connection, more and more studies have found that dry connection beam-column joints have good seismic performance when the design is reasonable. 5 There are multiple methods were used in the study of precast concrete beam-column joints based on the bolt connection, including experiment, 12,13 finite-element simulation, 14 and theoretical derivation. 2,15 The experiment on prefabricated concrete beam-column joint based on the bolt connection was studied by Ding et al, 16 which showed that the precast concrete beam-column joint based on the bolt connection exhibited excellent performance in resisting seismic loading and good assembly efficiency.…”