Python package for the direct stiffness method of matrix analysis of skeletal structures. At present a subpackage pf for analysis of plane frames has been implemented. Code is based on the flow charts in Weaver and Gere and an example is taken from Hall and Kabaila.
- Weaver, W. and Gere, J.M., Matrix Analysis of Framed Structures, 2ed., CBS Publishers, New Delhi, 1986
- Hall, A. and Kabaila, A.P., Basic Concepts of Structural Analysis, Pitman Publishing, London, 1977
Documentation is available here.
Clone the github repository and change into the directory. Examine the directory tree. You must have git installed on your machine.
>git clone https://github.com/satish-annigeri/MSA.git
>cd MSACreate a virtual environment and install required packages.
On MS Windows do:
>python -m venv venv
>venv\Scripts\activate.bat
>(venv)On *nix systems do:
$python3 -m venv venv
$source venv\bin
$(venv)Update pip
>(venv) python -m pip install -U pipInstall pip-tools and generate requirements.txt files.
>(venv) pip install -U pip-tools
>(venv) pip-compile requirements.in dev-requirements.in
>(venv) pip-sync requirements.txt dev-requirements.txtExecute the built-in examples in the package.
>(venv) python -m msaStudy the __main__.py scripts inside the msa package and write your own scripts.
Finally deactivate the virtual environment.
>(venv) deactivate
>The package has the following limitations
- Analyses only plane frame structures, with only plane frame elements.
- Non-zero boundary conditions are currently not allowed. Only known zerodisplacement boundary condition is implemented.
- Member loads must be applied as equivalent member end-forces. Equivalent member end-forces must be calculated manually as the negative values from the reactions produces in the corresponding fixed-end member.
- Only member end-forces are calculates. Forces at points within the member are not calculated.