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FAQ 000272 ZH

2017年12月1日

Robert Vogl 计算 RFEM RSTAB

根据二阶分析计算带拉杆的结构体系时,是否必须激活拉力产生的有利影响?

回答

In general, the check box "Consider favorable effects due to tension of members" is appropriate for every system.

In the standards, you find provisions to consider favorable effects with a smaller partial safety factor as action. The use of varying partial safety factors needs too much computing time. Therefore, RFEM and RSTAB offer you the possibility to set the tension forces to zero. The method is on the safe side. To do this, clear the check box.

On the other hand, the standards also refer to actions. Therefore, it would be possible to decide for each action, whether it has a favorable or unfavorable effect. An action that is seen as having a globally unfavorable effect can have a local favorable effect. If the axial forces are to be included in the calculation as unchanged, select the check box.

参考

[1]   Petersen, C. (1982). Statik und Stabilität der Baukonstruktionen (2nd ed.). Wiesbaden: Vieweg & Sohn.

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RFEM 主程序 RFEM
RFEM 5.xx

主程序

结构设计与有限元­分析软件(FEA)可以用于建立 平面与空间结构模型,适用于由杆件、面、 板、墙、折板、膜、壳、实体以及接触单元等的建模与分析计算。

首个许可价格
3,540.00 USD
RSTAB 主程序
RSTAB 8.xx

主程序

空间结构设计与分析软件,主要用于框架、梁与桁架等空间结构的建模与计算。可以输出内力、变形与制作反力的线性与非线性的计算结果。

首个许可价格
2,550.00 USD