Deep beam-to-column connection under cyclic loading Abaqus

Product Overview

In this project, a deep beam-to-column connection using a Welded Unreinforced Flange-Welded Web (WUF-W) connection is modeled in Abaqus and its behavior under cyclic loading is investigated.

The Abaqus results are compared with the experimental results to evaluate the accuracy of the numerical model and its ability to reproduce the structural response observed in the experiment.

Model Description

The model represents a deep beam-to-column connection subjected to cyclic loading. The structural components are modeled according to the configuration and dimensions reported in the reference experimental study.

As you observe in the picture, the distance between the loading point and the center of the column is 6000 mm, and the length of the column is 3500 mm.

The beam and column are made of SM490 steel.

The required material properties, interactions, boundary conditions, and analysis settings are defined in Abaqus to reproduce the behavior of the experimental connection.

Cyclic Loading

The deep beam-to-column connection is subjected to cyclic loading according to the loading protocol used in the reference experimental study.

The loading history is defined using the Amplitude option in Abaqus. The structure is analyzed under repeated loading and unloading cycles to investigate its nonlinear response.

The response obtained from the analysis is used to evaluate the hysteretic behavior of the connection.

Results and Hysteresis Response

The Abaqus results are extracted and processed to evaluate the structural response of the deep beam-to-column connection under cyclic loading.

The numerical results are used to obtain the moment–rotation hysteresis response of the connection.

The numerical hysteresis response is compared with the experimental results reported in the reference paper.

Experimental Validation

The numerical results obtained from Abaqus are compared with the experimental results reported in the reference research paper.

The comparison focuses on the hysteresis response and the overall structural behavior of the deep beam-to-column connection under cyclic loading.

During the experimental test, local buckling developed in the beam flange near the column face as the WUF-W connection was subjected to increasing cyclic rotations. This flange buckling was the main observed failure mode of the connection.

The Abaqus results show that the development of flange buckling is accompanied by a reduction in the load-carrying capacity of the connection, consistent with the behavior observed in the experimental test.

Key Features

• Numerical modeling of a deep beam-to-column connection.
• Cyclic analysis of the beam-to-column connection.
• Nonlinear analysis under cyclic loading.
• Definition of cyclic loading using Abaqus Amplitude.
• Moment–rotation hysteresis response.
• Deformation analysis under cyclic loading.
• Comparison with experimental results.
• Validated Abaqus numerical model.
• Complete Abaqus model files.
• Excel files for loading and numerical results.
• Reference research paper.
• Step-by-step video tutorial.

What You Will Learn

• How to model a deep beam-to-column connection in Abaqus.
• How to define the geometry of the beam and column.
• How to define the material properties of the structural components.
• How to define the interactions between the beam and column.
• How to define the boundary conditions of the model.
• How to apply cyclic loading to the connection.
• How to define cyclic loading using the Amplitude option in Abaqus.
• How to perform nonlinear analysis under cyclic loading.
• How to obtain the hysteresis response of the connection.
• How to extract and process Abaqus results using Excel.
• How to compare numerical and experimental results.

Reference

This project is based on the experimental study provided in the reference research paper.

The paper is included with the project files and can be used to review the experimental configuration, loading protocol, and reported results.