The fundamental structural concepts that will definitely be tested in ARE exams...

No need to memorize complicated structural formulas. There are only a few structural concepts that are fundamental in architectural practice and will be tested in ARE exams one way or another:

One of the is the concept of cantilever beams. The key concept is a cantilever beam is different from a regular beam.

A regular beam with one support at each end of the beam has tension at the LOWER portion of the beam, and if it is a concrete beam, the rebars should be placed at the LOWER portion of the beam.

A cantilever beam has tension at the UPPER portion of the beam, and if it is a concrete beam, the rebars should be placed at the UPPER portion of the beam.

You are welcome to add the important structural concepts at this thread.

Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)