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An Assessment of Artificial Intelligence Capabilities in Structural Analysis: A Comparative Study of Determinate and Indeterminate Beams (Research paper)

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This paper critically evaluates the performance of several AI models in structural analysis. The capability of different AI systems, including ChatGPT, DeepSeek, Gemini, and Perplexity, was assessed using a series of beam problems with varying degrees of static indeterminacy and structural complexity. The outputs were benchmarked against classical analytical methods, namely the force method and slope-deflection method, as well as numerical results obtained from structural analysis software (SAP2000). The results indicate that AI models can produce reasonably accurate results for statically determinate beams and systems with low levels of indeterminacy. However, their accuracy decreases significantly as structural complexity increases, with notable discrepancies observed in highly indeterminate systems. The study concludes that current AI models lack the effectiveness required for reliable structural analysis of complex systems and should not be used by engineers as the obtained results are not reliable especially for complex and statically indeterminate structures.

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