Analysis of Trusses

Trusses are structural systems composed of straight members connected at joints, typically assumed to be pinned. The goal of truss analysis is to determine the internal forces in each member under applied loads.

In this course, we analyze trusses using two classical methods:

Method of Joints
Method of Sections

These methods were thoroughly discussed in the Statics of Rigid Bodies section. You may refer back to that section for the discussion of concepts.

In Structural Theory, these same methods are still applicable, but they are often extended to handle more complex or indeterminate truss systems using advanced tools like virtual work, matrix methods, and compatibility equations.

For indeterminate trusses, internal forces are computed using energy methods, where virtual force tables and compatibility conditions (e.g., $ \Delta + y = 0 $) are applied to solve for redundant forces.

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Problem 2:

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Problem 8:

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