A mechanical response prediction method for spatial steel grid structures based on GCA-GAN

doi:10.1016/j.engstruct.2026.122831

A mechanical response prediction method for spatial steel grid structures based on GCA-GAN

2026-04-25

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DOI：10.1016/j.engstruct.2026.122831

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Abstract

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• Proposes a GCA-GAN surrogate model for spatial steel grid structures. • Builds a large-scale dataset linking geometry, loads and mechanical responses. • Jointly predicts 3D nodal displacements and member axial forces. • Achieves high prediction accuracy with significantly reduced computation. • Uses SHAP-based interpretability to reveal key geometric–loading couplings.

Keywords:

GCA-GAN

spatial steel grid structures

mechanical response prediction

3D nodal displacements

member axial forces

A mechanical response prediction method for spatial steel grid structures based on GCA-GAN

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