Behavior of concrete beam-column frame joints with DfD connections: A simulation study with interface modelling. (15th June 2019)

• Record Type: Journal Article
• Authors: Ding, Tao; Xiao, Jianzhuang; Khan, Asad-ur-Rehman
• Is Part Of: Engineering structures. Volume 189(2019)
• Page Start: 347
• Page End: 358
• Publication Date: 2019-06-15
• Subjects: Design for deconstruction (DfD) connection -- Concrete -- Beam-column frame joint -- Seismic behavior -- Finite element (FE) analysis; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2019.03.082
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Nonlinear finite element (FE) analysis was carried out to evaluate the behavior of frame joints with Design for deconstruction (DfD) connections. Modelling method for the concrete-concrete interface behavior was provided in this FE model. Simulation results were found to be comparable with experimental results and can be adopted to conduct parametric studies. Abstract: This paper presents a simulation study on the seismic behavior of newly developed concrete beam-column frame joints with design for deconstruction (DfD) connections. A two-dimensional nonlinear finite element (FE) analysis was carried out using ABAQUS software. Material constitutive laws for concrete and steel, interaction behavior for smooth concrete-concrete interface, interaction behavior for concrete-steel bond, and element type were presented. The FE model was calibrated using experimental data and simulation results were found to be comparable with experimental results. Particularly, the cracking pattern and failure mode can be well predicted by this FE model. Parametric studies were carried out subsequently based on the calibrated FE model. Results show that the condition of concrete-concrete interface has very limited effect on the overall capacity of concrete frame joint with DfD connections but will influence the cracking pattern and ductility of joints.