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在附加模块 RF‑STEEL AISC 中设计一般截面时，利用率会显示“无法设计”。 General cross-sections are defined in the program as user-defined sections or shapes which are not included in the specification. Though, some user-defined cross-sections can be designed under specific conditions. The warning message is displayed because shear buckling is not provided for general cross-section in the AISC 360‑16 [1] Chapter G. More info on this topic can be found in the RF‑STEEL AISC manual linked below.
This warning can be turned off in RF‑STEEL AISC add-on module under the "Details" button → Shear Buckling → "Shear buckling warning for general cross-section."
