Basics of Truss Systems — Lesson 3

This lesson covers the fundamental concepts of truss systems, which are structures made up of one-dimensional axial or linked members. The lesson explains how these members are joined together using pins, forming a structural system. It emphasizes that forces can only act at the points where the members are joined, and these forces should not result in moment resultants. The lesson also highlights that the members are assumed to have negligible weight compared to the forces applied on them. An illustrative example of a truss system is provided, with each member named alphabetically for easy identification.

Video Highlights

00:03 - Introduction to axial members and truss systems
00:35 - Explanation of how members are joined together
01:10 - Demonstration of a truss system
04:14 - Naming of members in a truss system
05:37 - Conditions for a truss system
07:37 - Introduction to Newton's laws of motion
08:14 - Simplified drawing of a truss system

Key Takeaways

- A truss system is a structure made up of one-dimensional axial or linked members.
- These members are joined together using pins, and forces can only act at these points.
- The forces acting on the members should not result in moment resultants.
- The members are assumed to have negligible weight compared to the forces applied on them.
- Each member in a truss system can be named alphabetically for easy identification.