| --- |
| 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<n<10K |
| configs: |
| - config_name: samples |
| default: true |
| data_files: |
| - split: train |
| path: splits/samples_train.parquet |
| - split: validation |
| path: splits/samples_validation.parquet |
| - split: test |
| path: splits/samples_test.parquet |
| - config_name: trajectories |
| data_files: |
| - split: all |
| path: trajectories.parquet |
| - config_name: checks |
| data_files: |
| - split: all |
| path: checks.parquet |
| --- |
| |
| # Formeo Portal Frame Dataset |
|
|
| > **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} |
| } |
| ``` |
|
|
