- #1

GreatBlitz

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- TL;DR Summary
- I am unable to understand how a given truss is internally statically determinate.

My professor taught me that a internally statically determinate truss is formed by having one basic truss - the triangular truss consisting of three joints and three members:

and then repeatedly adding two members and a joint:

So, it makes sense why this is a statically determinate truss:

However, I don't understand how this can be a statically determinate truss under the same reasoning:

Can someone can help?

and then repeatedly adding two members and a joint:

So, it makes sense why this is a statically determinate truss:

However, I don't understand how this can be a statically determinate truss under the same reasoning:

Can someone can help?