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Cantilever Retaining Wall Analysis

This project demonstrates the structural analysis of a Cantilever Retaining Wall using the OpenSeesPy library. The script defines a 2D plane strain model with triangular elements, simulates static loads, and outputs the displacements for the nodes.

Project Overview

This script models and analyzes a cantilever retaining wall under specific load conditions. The key steps include:

  1. Model Initialization:

    • Clearing previous models and defining a 2D space with two degrees of freedom (DOF) per node.

  2. Node and Element Definitions:

    • Nodes and triangular elements (Tri31) are defined for the plane strain model.

  3. Boundary Conditions:

    • Supports are set to restrict translational motion based on the design.

  4. Material Properties:

    • An elastic isotropic material with defined modulus of elasticity and Poisson’s ratio.

  5. Loading Conditions:

    • Static loads are applied at specific nodes to simulate external forces.

  6. Static Analysis:

    • A linear static analysis is performed, and nodal displacements are extracted.

Files and Requirements

Files

  • main.py: Python script containing the OpenSeesPy model.

How to Run the Script

Step 1: Install Dependencies

Ensure you have Python installed and the necessary libraries

pip install openseespy openseespy.postprocessing

Step 2: Execute the Script

Run the script using Python:

python main.py

Outputs

1. Node Displacements:

The script prints the displacements (x and y directions) for each node after the analysis.

Sample Output:

1 numaralı düğüm x= 0.0 m  -  y= 0.0 m
2 numaralı düğüm x= 0.0 m  -  y= -0.001 m
...
16 numaralı düğüm x= -0.0025 m  -  y= -0.0020 m

2. Model Visualization:

The model with nodes and elements is plotted using the plot_model function:

  • Nodes are labeled.
  • Elements are visualized for verification.