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Columns can be defined on any supported beam in ideCAD Statics. However , when this definition is made according to Article 3.6.2.4 (b) of TBDY , the vertical earthquake calculation should be made according to 4.4.3 .
(See: Yerel Düşey Titreşim Modları ile Gerçekçi Düşey Deprem Hesabı Realistic Vertical Earthquake Analysis with Local Vertical Vibration Modes (4.4.3.1))