Progressive collapse-resistant of the reinforced concrete Frame Abaqus

Product Overview

In this example, we intend to simulate the progressive collapse of a reinforced concrete frame in the Abaqus software.

The reinforced concrete frame includes four spans and three stories. The height of the first storey is 1567 mm, while the height of the second and third stories is 1100 mm. The bay span of the concrete frame is equal to 2667 mm.

Model Description

As you observe in the picture, the numerical model consists of a reinforced concrete frame with four spans and three stories.

The height of the first storey is 1567 mm, while the height of the second and third stories is 1100 mm. The bay span of the frame is 2667 mm.

Reinforcement of Beam and Column

In this model, the reinforcement of the structural members is also considered. As shown in the picture, the beam and column reinforcements are modeled according to the configuration of the reference study.

Concrete Damaged Plasticity (CDP)

To define the behavior of concrete, the Concrete Damaged Plasticity (CDP) model is used in Abaqus.

The CDP model is used to represent the nonlinear behavior of concrete under both compression and tension. In this project, the concrete material properties are defined according to the reference study, including the required parameters for the CDP model.

The compressive behavior and damage of concrete are considered in the analysis so that the degradation of concrete under compression can be investigated.

Vertical Loading

In this analysis, a vertical load is applied to the top of the middle column.

This applied force simulates the weight transferred from the upper stories to the middle column.

Compressive Damage of Concrete

As shown in the picture, the compressive damage of concrete can be observed from the Abaqus results.

The compressive damage variable is used to investigate the regions of the reinforced concrete frame where the concrete experiences significant compressive damage during the progressive collapse analysis.

Force–Displacement Diagram

In this picture, the Force–Displacement diagram is obtained from the Abaqus analysis.

As you observe, the results obtained from the Abaqus software are very close to those reported in the article.

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 behavior reported in the study.

Key Features

• Progressive collapse analysis of a reinforced concrete frame.
• Four-span and three-story reinforced concrete frame.
• Modeling of beam and column reinforcement.
• Concrete material definition using the CDP model.
• Investigation of compressive damage of concrete.
• Application of vertical loading to the middle column.
• Investigation of structural response.
• Force–Displacement diagram.
• Comparison with the results reported in the article.
• Validated Abaqus model.
• Complete Abaqus CAE file.
• Abaqus INP file.
• Excel material file for concrete.
• Excel results file.
• Reference research paper.
• Step-by-step video tutorial.

What You Will Learn

• How to model a three-story reinforced concrete frame in Abaqus.
• How to define the geometry of the reinforced concrete frame.
• How to model the beams and columns.
• How to define the reinforcement of the beams.
• How to define the reinforcement of the columns.
• How to define the concrete material properties.
• How to define concrete using the Concrete Damaged Plasticity (CDP) model.
• How to define the compressive behavior and damage of concrete.
• How to assemble the reinforced concrete frame.
• How to apply the vertical load to the top of the middle column.
• How to investigate the progressive collapse behavior of the frame.
• How to obtain the Force–Displacement diagram.
• How to compare the Abaqus results with the results reported in the article.
• How to investigate the compressive damage of concrete.
• How to validate the numerical model using the reference article.

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 configuration, material properties, and reported results.