Hysteresis analysis of the moment-resisting frame with cable bracing Abaqus

Product Overview

In this example, we simulate the cyclic behavior of a steel moment-resisting frame with wire-rope bracing using the Abaqus software.

The model is based on the experimental study of a displacement-restraint bracing system developed for the seismic retrofit of steel moment-resisting frames. The proposed system uses wire-rope (cable) bracing to restrain excessive lateral displacement while maintaining the ductile behavior of the moment-resisting frame.

The model includes the beam, columns, wire-rope bracing, gusset plate, T-plate, continuity plate, and supports.

The model is subjected to cyclic displacement-controlled loading following the loading history used in the experimental study. The analysis is used to investigate the force-displacement hysteresis response and the deformation behavior of the braced frame.

Cable Bracing

In the experimental study, the bracing member was a 10 mm diameter SUS316 stainless steel wire rope.

The model uses wire-rope bracing as a displacement-restraint system for the steel moment-resisting frame. The wire ropes are introduced to provide additional resistance when the lateral displacement of the frame becomes sufficiently large.

An important characteristic of this bracing system is that the wire ropes do not significantly participate during small and moderate frame displacements. As the displacement increases and the specified restraint displacement is reached, the wire ropes become engaged and develop tensile forces.

Cyclic Loading

The moment-resisting frame is subjected to cyclic displacement-controlled loading to reproduce the loading procedure used in the experimental study.

During the analysis, the frame undergoes repeated positive and negative lateral displacements. This loading procedure allows the force-displacement hysteresis response, deformation behavior, and development of tensile forces in the wire ropes to be investigated.

Comparison of Abaqus and Experimental Results

In this picture, the force-displacement hysteresis diagram obtained from the Abaqus software is compared with the experimental results.

This comparison is used to evaluate the accuracy of the numerical model and its ability to reproduce the cyclic response observed in the experimental study.

Structural Response

The Abaqus results can also be used to investigate the deformation and structural response of the moment-resisting frame with cable bracing during cyclic loading.

Validation

This project has been validated, which means that the results obtained from the Abaqus software are similar to the results reported in the article.

In other words, this project is based on the reference article and the numerical model has been developed to reproduce the cyclic behavior reported in the experimental study.

What You Will Learn

• How to model a moment-resisting frame with cable bracing in Abaqus.
• How to model the beam and column.
• How to model the cable as a bracing member.
• How to model the gusset plate.
• How to model the T-plate.
• How to model the continuity plate.
• How to define the support conditions.
• How to define the material properties of the steel components.
• How to assemble the complete model.
• How to define the required boundary conditions.
• How to apply cyclic loading to the model.
• How to define the cyclic loading amplitude.
• How to obtain the hysteresis diagram from Abaqus.
• How to compare the Abaqus hysteresis response with experimental results.
• How to investigate the structural response of the frame under cyclic loading.
• How to validate the numerical model using the reference article.

Key Features

• Moment-resisting frame modeling in Abaqus.
• Cable bracing modeling.
• Beam and column modeling.
• Gusset plate, T-plate, and continuity plate modeling.
• Cyclic loading analysis.
• Cyclic loading amplitude definition.
• Hysteresis diagram obtained from Abaqus.
• Comparison between Abaqus and experimental results.
• Investigation of the structural response under cyclic loading.
• Validation against the reference article.
• Complete Abaqus CAE file.
• Abaqus INP file.
• Excel amplitude loading file.
• Excel results file.
• Reference research paper.
• Step-by-step video tutorial.

Reference

This project is based on the reference research article. The paper is included with the project files and can be used to review the experimental model, loading protocol, and reported results.