This program calculates the forces present in the truss members of a bridge as shown in the pictures below.

1. Download the code on your laptop.
2. Make sure you have Python 3, and the Python Quantities library installed (here)
3. Follow the instructions in main.py to input your bridge design.
4. Run main.py!

• Calculation of forces in Pratt, Howe, Warren and K trusses
• Point loads and uniformly distributed loads
• Calculating minimum second moment of area to avoid buckling
• Calculating minimum cross-sectional area to avoid yielding

• All loads and supports have to be in one horizontal axis (i.e. the deck). Point loads must be pointing downwards. Removing this limitation would be the next logical improvement.

• No unit testing. This is a personal project that I developed for fun rather than reliability. Therefore, I intentionally decided not to focus on testing. Weird loading cases might not work as expected.

This project is licenced under the MIT License. See LICENSE for more details.