smillmorel
61b850bf46
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Auto-fixes (UP037, UP038, F401, I001, SIM105, RUF100) plus hand-fixes: drop the now-unused `Union` imports, annotate mutable class attributes with ClassVar, raise ValidationError instead of blind Exception in the zero-length test, delete two dead locals, and bind the per-iteration grid-builder closures to their loop variables (B023).
63 lines
2.5 KiB
Python
63 lines
2.5 KiB
Python
"""Integration test for the RC Frame Gravity example (OpenSees Ex 3)."""
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from __future__ import annotations
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import pytest
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pytest.importorskip("openseespy")
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from otko.services import load_project, save_project
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from otko.services.opensees_runner import OpenSeesRunner
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pytestmark = pytest.mark.slow
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def test_rc_frame_gravity_matches_opensees_reference(tmp_path) -> None: # type: ignore[no-untyped-def]
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"""Build → save → load → run → compare to OpenSees Tcl output.
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The Tcl script prints nodes 3 and 4 (top corners). Under the 10
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x 0.1 = full gravity load pattern, a symmetric frame with
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identical columns gives:
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Ux ≈ 0 (symmetric), Rz ≈ 0, Uy ≈ -0.0203 in
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The column axial force is 180 kip compression (from the 180 kip
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load stepped onto each top node).
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"""
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from examples.rc_frame_gravity import P_LOAD, build_rc_frame_gravity
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proj = build_rc_frame_gravity()
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proj.validate_references()
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path = tmp_path / "rc.osmodel"
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save_project(proj, path)
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reloaded = load_project(path)
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reloaded.validate_references()
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result = OpenSeesRunner(reloaded).run(reloaded.analyses[0])
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# Every one of the 10 LoadControl steps must have converged —
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# the partial-result fallback would trim the array otherwise.
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assert len(result.control_disp) == 10 if hasattr(result, "control_disp") else True
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# Nodes 3 and 4 — symmetric loading, so Uy equal, Ux ≈ 0.
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d3 = result.node_disp[3][-1]
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d4 = result.node_disp[4][-1]
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assert abs(d3[0]) < 1e-6, f"Node 3 Ux = {d3[0]:.3e} should be ~0 (symmetric)"
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assert abs(d4[0]) < 1e-6, f"Node 4 Ux = {d4[0]:.3e} should be ~0 (symmetric)"
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# Top nodes settle downward — magnitude ≈ 0.0183736 in per the
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# OpenSees Wiki RC Portal Frame reference output (node 3 & 4 disp).
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assert d3[1] == pytest.approx(-0.018374, abs=5e-5), f"Node 3 Uy = {d3[1]:.6e}"
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assert d4[1] == pytest.approx(-0.018374, abs=5e-5), f"Node 4 Uy = {d4[1]:.6e}"
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# By symmetry.
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assert d3[1] == pytest.approx(d4[1], abs=1e-9)
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# Column 1 axial force ≈ P = 180 kip compression.
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# localForce in 2D/ndf=3: [N_i, V_i, M_i, N_j, V_j, M_j].
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# Compression (end-i points along local-x TOWARD j) → +N by
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# OpenSees equilibrium sign, i.e. the first component equals the
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# applied vertical load on end i.
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col1 = result.element_forces[1][-1]
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assert abs(col1[0]) == pytest.approx(
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P_LOAD, abs=1.0
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), f"Column 1 axial {col1[0]:.2f} ≠ ±{P_LOAD} kip"
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assert abs(col1[3]) == pytest.approx(P_LOAD, abs=1.0)
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