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Main Authors: Bleker, Lazlo, Guo, Zifeng, Smith, Kaleb, Tam, Kam-Ming Mark, Ochoa, Karla Saldaña, D'Acunto, Pierluigi
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2601.12870
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author Bleker, Lazlo
Guo, Zifeng
Smith, Kaleb
Tam, Kam-Ming Mark
Ochoa, Karla Saldaña
D'Acunto, Pierluigi
author_facet Bleker, Lazlo
Guo, Zifeng
Smith, Kaleb
Tam, Kam-Ming Mark
Ochoa, Karla Saldaña
D'Acunto, Pierluigi
contents This paper presents Text2Structure3D, a graph-based Machine Learning (ML) model that generates equilibrium structures from natural language prompts. Text2Structure3D is designed to support new intuitive ways of design exploration and iteration in the conceptual structural design process. The approach combines latent diffusion with a Variational Graph Auto-Encoder (VGAE) and graph transformers to generate structural graphs that are close to an equilibrium state. Text2Structure3D integrates a residual force optimization post-processing step that ensures generated structures fully satisfy static equilibrium. The model was trained and validated using a cross-typological dataset of funicular form-found and statically determinate bridge structures, paired with text descriptions that capture the formal and structural features of each bridge. Results demonstrate that Text2Structure3D generates equilibrium structures with strong adherence to text-based specifications and greatly improves generalization capabilities compared to parametric model-based approaches. Text2Structure3D represents an early step toward a general-purpose foundation model for structural design, enabling the integration of generative AI into conceptual design workflows.
format Preprint
id arxiv_https___arxiv_org_abs_2601_12870
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Text2Structure3D: Graph-Based Generative Modeling of Equilibrium Structures with Diffusion Transformers
Bleker, Lazlo
Guo, Zifeng
Smith, Kaleb
Tam, Kam-Ming Mark
Ochoa, Karla Saldaña
D'Acunto, Pierluigi
Computational Engineering, Finance, and Science
This paper presents Text2Structure3D, a graph-based Machine Learning (ML) model that generates equilibrium structures from natural language prompts. Text2Structure3D is designed to support new intuitive ways of design exploration and iteration in the conceptual structural design process. The approach combines latent diffusion with a Variational Graph Auto-Encoder (VGAE) and graph transformers to generate structural graphs that are close to an equilibrium state. Text2Structure3D integrates a residual force optimization post-processing step that ensures generated structures fully satisfy static equilibrium. The model was trained and validated using a cross-typological dataset of funicular form-found and statically determinate bridge structures, paired with text descriptions that capture the formal and structural features of each bridge. Results demonstrate that Text2Structure3D generates equilibrium structures with strong adherence to text-based specifications and greatly improves generalization capabilities compared to parametric model-based approaches. Text2Structure3D represents an early step toward a general-purpose foundation model for structural design, enabling the integration of generative AI into conceptual design workflows.
title Text2Structure3D: Graph-Based Generative Modeling of Equilibrium Structures with Diffusion Transformers
topic Computational Engineering, Finance, and Science
url https://arxiv.org/abs/2601.12870