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license: cc-by-4.0
task_categories:
- other
language:
- en
tags:
- seismic
- structural-engineering
- ground-motion
- hdf5
- time-series
pretty_name: KNET Seismic Ground Motion & Building Response Dataset (MDOF)
size_categories:
- 10M<n<100M
---
# KNET Seismic Ground Motion & Building Response Dataset (MDOF)
Ground motion records from the K-NET strong-motion network (Japan), paired with numerically simulated floor acceleration responses for 250 multi-degree-of-freedom (MDOF) shear-building configurations. Used to train and evaluate Fourier Neural Operator (FNO) models for seismic structural response prediction.
## Dataset Summary
| Property | Value |
|----------|-------|
| Ground motion records | 3,474 (K-NET) |
| Amplitude scale factors per GM | 57 |
| Building configurations | 250 MDOF shear buildings |
| Signal length | 3,000 time steps (60 s @ 50 Hz) |
| GM file format | HDF5 (`.h5`) |
| Building response format | HDF5 (`.h5`), one file per building |
## File Structure
```
MDOF/
├── All_GMs/
│ └── GMs_knet_3474_AF_57.h5 # Ground motion inputs
└── knet-250/
└── Data/
└── fno/
├── Blg_F6_18m_IM7_st0.h5.h5 # Floor acc. response
```
### Ground Motion File (`GMs_knet_3474_AF_57.h5`)
Each entry stores the scaled acceleration time series for one GM × scale-factor combination.
| HDF5 Key pattern | Shape | Description |
|-----------------|-------|-------------|
| `gm_{i}/af_{j}/data` | `(3000,)` | Scaled acceleration (m/s²), 50 Hz |
| `gm_{i}/af_{j}/pga` | scalar | Peak ground acceleration (m/s²) |
| `gm_{i}/metadata` | attrs | Station, event, magnitude, etc. |
### Building Response Files (`Blg_F6_18m_IM7_st0.h5.h5`)
Each file stores the simulated structural response for all GM × scale combinations for one building.
| HDF5 Key | Shape | Description |
|----------|-------|-------------|
| `response/gm_{i}/af_{j}/floor_acc` | `(n_floors, 3000)` | Floor acceleration (m/s²) |
| `building/attributes` | attrs | Number of floors, periods, damping, etc. |
| `building/damage_state/gm_{i}/af_{j}` | scalar int | HAZUS damage state (0–4) |
## Loading
Refer to github repo and codes.
## License
[Creative Commons Attribution 4.0 (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/)
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