FAQ 000244 ZH

计算 RF-DYNAM Pro - Forced Vibrations

In which case do I use which superposition expression for the modal response spectrum method?

回答

The complete quadratic combination (Complete Quadratic Combination, CQC) is used if in the analysis of spacial models with mixed torsional / translational eigenvectors there are adjacent mode shapes, whose periods differ by less than 10 %.

If this is not the case, the quadratic combination (SRSS) is used.

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RFEM 动力分析
RF-DYNAM Pro - Forced Vibrations 5.xx

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动力和地震分析 - 时程分析法和多振型反应谱分析方法