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Notes on the solver, the code checks and the decisions behind them — written by the people who write the code.
A language model cannot guarantee a number is right; a verified solver can. The architecture that makes AI useful in structural engineering keeps the two apart.
Read the postThere is free structural software, and it is good: it models, it solves, it shows results. What there is not is one that approaches the advanced tools conceptually.
Read the postEveryone remembers φMn ≥ Mu. That is the last line of the check, not the check. The steps that decide the outcome are others, and one is why φ is not 0.9.
Read the postThree formulas, one section, three different numbers. Which applies depends on how the wall is built; and where two apply at once, Bredt lands 2 to 15% low.
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