NTC-2023 Acero

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Idioma:

Resistencia a compresión — estado límite de pandeo por flexión de miembros sin elementos esbeltos

§6.3.1Cumplimiento

R_{c} = F_{R} χ F_{y} A, χ = [1 + λ_{c}^{2 n}]^{- 1/ n}, λ_{c} = \frac{F _{y}}{F _{e}}, F_{e} = \frac{π ^{2} E}{( K L / r ) ^{2}}, P_{u} \leq R_{c}

Casos de prueba (0/0)

Resistencia a tensión — menor de fluencia (sección total) y fractura (sección neta)

§5.3.1Cumplimiento

R_{t} = min (F_{R} F_{y} A, F_{R} F_{u} A_{e}), P_{u} \leq R_{t}

Casos de prueba (2/2)

tension_passCoincide con lo esperado

Deberia cumplirCumple

source: RETROFIT: derived from engine case ntc2023_tension_pass (Rt=0.90*345e6*9097e-6=2,824,619 N; Pu/Rt=0.177). Circular — the implementation is both the source and the thing under test, so this case can only catch a regression, never a wrong formula. Needs re-derivation for THESE inputs by an actor working from §5.3.1 alone, who has not seen check_tension. A worked example from another code (e.g. AISC 360-22 D.1) is not a substitute: it has its own geometry, forces and resistance factors, so it validates neither this ratio nor this clause.

tension_failCoincide con lo esperado

No deberia cumplirNo cumple

source: RETROFIT: derived from engine case ntc2023_tension_fail (Rt=2,824,619 N; Pu/Rt=1.062). Circular for the same reason as tension_pass, and re-derivable in the same pass: same section and grade, only Pu differs.