--- license: cc-by-nc-4.0 pretty_name: Formeo Portal Frame Dataset v1 task_categories: - tabular-regression - reinforcement-learning tags: - structural-engineering - eurocode - portal-frame - physics-informed - sizing-trajectories language: - en size_categories: - 1K **50k samples / hour.** Physics-verified structural samples from Formeo's Dataset Factory — generator, Eurocode verifier, and sizing trajectories. Need another structure type or engineering domain? Get in touch: [info@formeo.ai](mailto:info@formeo.ai). ## Summary **Physics-verified structural engineering dataset** for steel portal frames: design inputs, reference solutions, per-clause Eurocode checks, sizing trajectories, labeled ULS/SLS outcomes, and alignment with a deterministic scoring checker. The public sample is the **proof**. The sellable asset is the **generator + verifier + reasoning traces** for a verifiable engineering domain. Formeo is an AI-driven structural engineering design platform developed by **Kisfali Engineering Srls.** This repository publishes a **public sample** of the corpus under Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). The generation pipeline, verifier API, and full corpus remain proprietary. - **HF dataset:** [`Formeo/portal-frame-dataset`](https://huggingface.co/datasets/Formeo/portal-frame-dataset) - **Factory throughput (measured):** ~50k samples / hour - **Structure family:** single-bay pitched-roof steel portal frame - **Public sample:** 2,000 samples (cc-by-nc-4.0) - **Full corpus (licensed):** 20,000 samples (regeneration on request) - **Schema version:** 1.1 - **Units:** SI (m, kN, kNm, kg, kgCO2e) - **Feasible rate (ULS and SLS ≤ 1.0) on full run:** 99.8% ## Dataset contents | Content | Purpose | |---------|---------| | Frame inputs (geometry / loads / grade) | Task specification | | Final steel sections + mass / eCO₂ | Reference solution | | Per-member EN 1993 check table | Clause-level labels | | SLS deflection (actual vs L/200, H/150) | Serviceability labels for supervised learning | | `failure_mode`: `none` / `uls` / `sls` / `both` | Strength vs deflection failure attribution | | `status` | Design outcome including labeled non-optimal cases | | Sizing trajectory | Ordered catalog walk (agent / RL training signal) | **Acceptance rule (dataset labels and checker are identical):** a design is feasible only when **both** ULS strength utilization and SLS deflection utilization are ≤ 1.0. Governing utilization = max(ULS, SLS). **This package status mix:** `infeasible_catalog_limit`=3, `non_converged_oscillation`=1, `optimal`=1179, `suboptimal`=817 ## Intended use Formeo provides a **programmatic task generator** and a **deterministic Eurocode scoring checker** for structural design. Downstream systems can train or evaluate models that propose member sections; the checker returns pass/fail and per-clause diagnostics. ## Parameter space (this release) Ranges below match the factory sampler (`CONTINUOUS_BOUNDS` / `CATEGORICALS`) used to generate the data. | Parameter | Field | Range / levels | Type | |-----------|-------|----------------|------| | Span | `span` | 12–25 m | float | | Eaves height | `h_eaves` | 4–10 m | float | | Roof pitch | `pitch` | 3–15 deg | float | | Frame spacing | `frame_spacing` | 5–8 m | float | | Basic wind velocity | `v_b0` | 22–26 m/s | float | | Snow on ground | `s_k` | 0.4–0.8 kN/m² | float | | Cladding + services DL | `g_k_add` | 0.15–0.25 kN/m² | float | | Base fixity | `base_fixity` | pinned, fixed | categorical | | Terrain | `terrain` | II, III | categorical | | Steel grade | `grade` | S275, S355 | categorical | | Column family | `column_family` | IPE, HEA | categorical | | Rafter family | `rafter_family` | IPE, HEA | categorical | Initial section guesses are sampled within the chosen IPE/HEA family; final sections result from the sizing catalog walk (same families). Catalog upper bound in this release: IPE600 / HEA as in the Formeo materials DB. ## Design status labels | Status | Meaning | |--------|---------| | `optimal` | ULS and SLS both ≤ 1.0; governing utilization in [0.90, 1.00] | | `suboptimal` | Both pass but governing utilization < 0.90 (code-ok, overdesigned) | | `infeasible_catalog_limit` | Still over-utilised; catalog could not step up | | `non_converged_oscillation` | Over-utilised for other sizing reasons | | `error` | Pipeline failure (not included in the published sample) | `failure_mode` indicates whether the overshoot is strength (`uls`), deflection (`sls`), or both. ## Check fidelity - EN 1993 member checks: **Formeo simplified** implementation (not a full commercial design suite covering every clause of EN 1993-1-1). - SLS: vertical apex δz ≤ **L/200**, horizontal eaves δx ≤ **H/150**. Actual displacements and limits are stored per sample. - Linear 3D frame FEA; idealized single portal frame; no haunches, connections, fire, or fatigue. - Frame-only eCO₂ (default 1.5 kgCO2e/kg steel A1–A3); purlins/cladding excluded. - Single CEN-style annex for v1. ## Package contents - `samples.jsonl` — full sample records - `samples.parquet` — all public samples (includes a `split` column: train / val / test) - `splits/samples_*.parquet` — same rows partitioned for the Hub Dataset Viewer - `trajectories.parquet` / `checks.parquet` — analytics tables - `splits.json` — train / val / test sample ID lists - `assets/` — UI screenshot + sample calculation report PDF (when included) - `qa_plots/` — utilization, status, span–mass diagnostic plots (when included) - `figures/` — curated learnability / env-demo plots (when included) - `manifest.json` — sample size and status counts ## Legal & Copyright - **Copyright:** © 2026 Kisfali Engineering Srls. All rights reserved. - **Dataset public license:** Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) (`cc-by-nc-4.0`). - **Proprietary assets:** The generation pipeline, verifier API, full corpus, and commercial usage rights are owned exclusively by **Kisfali Engineering Srls.** For commercial licensing, custom structure families, verifier API access, or synthetic data for another engineering need, contact **Kisfali Engineering Srls.** at [info@formeo.ai](mailto:info@formeo.ai). ## Citation ```bibtex @dataset{formeo_portal_frame_2026, author = {Kisfali Engineering Srls.}, title = {Formeo Dataset Factory: Portal Frame v1}, year = 2026, publisher = {Hugging Face}, url = {https://huggingface.co/datasets/Formeo/portal-frame-dataset} } ```