Seismic behavior of obliquely stiffened steel plate shear wall with openings

Product Overview

In this project, an obliquely stiffened steel plate shear wall with openings is modeled in Abaqus and its seismic behavior under cyclic loading is investigated.

The numerical model is developed based on the experimental study reported in the reference paper. 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 laboratory test.

Model Description

The model represents an obliquely stiffened steel plate shear wall with openings based on the configuration used in the reference experimental study.

The steel shear wall contains openings and obliquely arranged stiffeners. The geometry and structural configuration are defined according to the information provided in the reference study.

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

Buckling Analysis and Initial Imperfection

A buckling analysis is first performed to investigate the buckling behavior of the steel plate shear wall.

The buckling modes are extracted from the Abaqus analysis and are then used to define an initial geometric imperfection in the numerical model.

Introducing the initial imperfection based on the buckling modes helps the numerical model better represent the initial geometric condition of the experimental specimen.

Cyclic Loading

After the buckling analysis, the model is subjected to cyclic loading.

The cyclic loading is applied to the top beam according to the loading procedure used in the reference experimental study.

The loading history is defined using the required amplitude data in Abaqus, and the model is analyzed under repeated loading and unloading cycles.

Results and Hysteresis Response

The Abaqus results are extracted and processed to evaluate the structural response of the steel plate shear wall under cyclic loading.

The hysteresis diagram obtained from the Abaqus analysis is compared with the corresponding laboratory results reported in the reference paper.

The comparison shows good conformity between the numerical and experimental results, demonstrating that the Abaqus model can reproduce the main characteristics of the experimental response.

Deformation Under Cyclic Loading

The final deformation of the steel shear wall is investigated after the cyclic loading analysis.

The deformation obtained from the Abaqus analysis is compared with the deformation observed in the experimental study.

The deformation of the top beam is also evaluated and compared with the experimental behavior.

Experimental Validation

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

The comparison focuses on the hysteresis response and deformation behavior of the steel shear wall under cyclic loading.

The Abaqus results show good agreement with the experimental results, confirming that the numerical model can reproduce the main structural behavior observed in the laboratory test.

Key Features

• Obliquely stiffened steel plate shear wall with openings.
• Buckling analysis and extraction of buckling modes.
• Initial geometric imperfection based on buckling modes.
• Cyclic loading applied to the top beam.
• Nonlinear analysis under cyclic loading.
• Force–displacement hysteresis response.
• Investigation of final deformation.
• Comparison with laboratory results.
• Comparison of top beam deformation with experimental results.
• Complete Abaqus model files.
• Excel file for amplitude loading.
• Excel file containing numerical results.
• Step-by-step video tutorial.

What You Will Learn

• How to model an obliquely stiffened steel plate shear wall with openings in Abaqus.
• How to define the geometry and material properties of the model.
• How to model the openings and oblique stiffeners.
• How to define the required boundary conditions in Abaqus.
• How to perform a buckling analysis.
• How to extract buckling modes from the Abaqus analysis.
• How to use buckling modes to define an initial geometric imperfection.
• How to apply cyclic loading to the top beam.
• How to perform nonlinear analysis under cyclic loading.
• How to obtain a force–displacement hysteresis diagram.
• How to extract and process Abaqus results using Excel.
• How to compare numerical and experimental results.
• How to compare the deformation obtained from Abaqus with the experimental deformation.

Reference

This project is based on the experimental research study used to investigate the seismic behavior of an obliquely stiffened steel plate shear wall with openings under cyclic loading.

The reference paper is included with the project files and can be used to review the laboratory model, loading procedure, deformation behavior, and reported experimental results.