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feat: initial otko import
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smillmorel 2026-09-08 02:12:15 -04:00
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275
examples/concrete04_cantilever.osmodel Normal file
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@ -0,0 +1,275 @@
{
"schema_version": 1,
"meta": {
"name": "Concrete04 Cantilever",
"description": "Single RC column cantilever using Concrete04 (Popovics) fiber section. Demonstrates the Concrete04 material end-to-end: schema → model → runner → results.",
"author": "",
"units": "SI (m, N, kg, s, Pa)"
},
"ndm": 2,
"ndf": 3,
"coord_systems": [
{
"name": "Global",
"coord": {
"origin": [
0.0,
0.0,
0.0
],
"rotation_deg": [
0.0,
0.0,
0.0
]
},
"grid": {
"x_grid_lines": [],
"y_grid_lines": [],
"z_grid_lines": [],
"visible": true,
"is_general": false,
"hide_all": false,
"glue_to_grid": false,
"bubble_size": 20
}
}
],
"nodes": [
{
"id": 1,
"name": "Base",
"coords": [
0.0,
0.0,
0.0
],
"mass": [
0.0,
0.0,
0.0,
0.0,
0.0,
0.0
],
"restraint": [
true,
true,
true,
false,
false,
false
]
},
{
"id": 2,
"name": "Top",
"coords": [
0.0,
3.0,
0.0
],
"mass": [
0.0,
0.0,
0.0,
0.0,
0.0,
0.0
],
"restraint": [
false,
false,
false,
false,
false,
false
]
}
],
"materials": [
{
"id": 1,
"name": "C30-Popovics",
"type": "Concrete04",
"fpc": -30000000.0,
"epsc0": -0.002,
"epscu": -0.005,
"Ec": 25742960202.74281,
"fct": 2200000.0,
"et": 0.0001,
"beta": null
},
{
"id": 2,
"name": "Rebar-B500",
"type": "Steel02",
"Fy": 420000000.0,
"E0": 200000000000.0,
"b": 0.01,
"R0": 18.0,
"cR1": 0.925,
"cR2": 0.15
}
],
"sections": [
{
"id": 1,
"name": "RC-Fiber-C04",
"type": "FiberSection",
"GJ": null,
"patches": [
{
"kind": "rect",
"material_id": 1,
"n_fib_y": 8,
"n_fib_z": 4,
"y_i": -0.15,
"z_i": -0.15,
"y_j": 0.15,
"z_j": 0.15
}
],
"layers": [
{
"kind": "straight",
"material_id": 2,
"n_bars": 4,
"bar_area": 0.000314,
"y_start": -0.12,
"z_start": 0.12,
"y_end": -0.12,
"z_end": -0.12
},
{
"kind": "straight",
"material_id": 2,
"n_bars": 4,
"bar_area": 0.000314,
"y_start": 0.12,
"z_start": 0.12,
"y_end": 0.12,
"z_end": -0.12
}
],
"fibres": []
}
],
"elements": [
{
"id": 1,
"name": "Column",
"type": "ForceBeamColumn",
"nodes": [
1,
2
],
"section_id": 1,
"integration_points": 5,
"geom_transf": "Linear",
"max_iter": 10,
"tolerance": 1e-12
}
],
"mp_constraints": [],
"time_series": [
{
"id": 1,
"name": "Gravity",
"type": "Linear",
"factor": 1.0
},
{
"id": 2,
"name": "Lateral",
"type": "Linear",
"factor": 1.0
}
],
"load_patterns": [
{
"id": 1,
"name": "Gravity",
"type": "Plain",
"time_series_id": 1,
"nodal_loads": [
{
"node_id": 2,
"forces": [
0.0,
-300000.0,
0.0,
0.0,
0.0,
0.0
]
}
],
"element_loads": []
},
{
"id": 2,
"name": "Pushover-X",
"type": "Plain",
"time_series_id": 2,
"nodal_loads": [
{
"node_id": 2,
"forces": [
50000.0,
0.0,
0.0,
0.0,
0.0,
0.0
]
}
],
"element_loads": []
}
],
"spectra": [],
"analyses": [
{
"id": 1,
"name": "Gravity",
"type": "Static",
"pattern_ids": [
1
],
"n_steps": 10,
"load_factor_increment": 0.1,
"system": "BandGeneral",
"constraints": "Plain",
"integrator": "LoadControl",
"algorithm": "Newton",
"test": "NormDispIncr",
"tolerance": 1e-08,
"max_iter": 10
},
{
"id": 2,
"name": "Push-X",
"type": "Pushover",
"pattern_ids": [
2
],
"control_node": 2,
"control_dof": 1,
"target_disp": 0.15000000000000002,
"step_size": 0.003,
"base_nodes": [
1
],
"system": "BandGeneral",
"constraints": "Plain",
"algorithm": "Newton",
"test": "EnergyIncr",
"tolerance": 1e-08,
"max_iter": 10,
"preload_case_ids": [
1
]
}
]
}