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AISC柱計算機

AISC 360-22に基づくW形鋼柱の圧縮력과合成N+M性能を検索。§E3座屈、§E4扭座屈、§E7細長要素低減、備考HのN+M合成を含む。

柱パラメータ
Geometry
AISC 360-22 §C-C2.2: Cₘ = 0.85(ブレース付き)、1.0(ブレースなし)。
Axial Load
Moments
Combined N+M Utilization — LRFD
Slenderness KL/r (AISC 360-22 §E1)
KL/r in-plane (x-x)
KL/r out-of-plane (y-y)
Limit ≤ 200
Governing axis
Section Classification (AISC 360-22 Table B4.1a)
Flange λ = bf/2tf
Flange class
Web λ = (d−2tf)/tw
Overall
In-Plane Buckling (AISC 360-22 §E3) — x-x axis
Fe (elastic critical)
Fcr (column stress)
φPn (design capacity)
Out-of-Plane Buckling (AISC 360-22 §E3) — y-y axis
Fe (elastic critical)
Fcr (column stress)
φPn (design capacity)
Torsional Buckling (AISC 360-22 §E4)
Fe_t (ksi)
Fcr_t (ksi)
φPn_t (kip)
Torsional governs?
Slender-Element Reduction (AISC 360-22 §E7)
Qs (flange)
Qa (web)
Q = Qs·Qa
Ae (in²)
Fcr_e (ksi)
φPn_e (kip)
Slender governs?
Fcr vs KL/r Column Curve (AISC 360-22 §E3)
Moment Magnifier (AISC 360-22 §C2.2)
Cm
δ = Cm/(1 − P/Pcr)
Effective Mu (LRFD)
φMn (LRFD)
Applied Loads (LRFD)
Pu (design axial)
Mu (design moment)
Combined N+M Interaction (AISC 360-22 Eq. H1-1a/b)
Pu/φPn
Mu/φMn
Combined check η
Governing check
W14×90 L Pu Mu K=1.0
W section column elevation (schematic)
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