Rotational Restraint

词汇表条目

A rotational restraint is a point rotational spring or continuous rotational spring about the longitudinal member axis.

Entering in RFEM and RSTAB

A discrete rotational restraint (point rotational spring) can be entered using the menu 'Insert' → 'Model Data' → 'Nodal Support' → 'Dialog Box' / 'Graphically' (see Figure 01 on the left) or the corresponding button, or in a table (see Figure 01 on the right).

A continuous rotational restraint (continuous rotational spring) can be entered using the menu 'Insert' → 'Model Data' → 'Member Elastic Foundation' → 'Dialog Box' (see Figure 02 on the left) or in tables (see Figure 02 on the right).

Entering in RF-/STEEL EC3 and RF-/FE-LTB

The rotation of girders susceptible to lateral-torsional buckling can be prevented in the case of the corresponding formation of connections by perpendicularly arranged girders (see Figure 03 on the left) or plates (see Figure 03 on the right). These act as point rotational springs (girders) or as continuous rotational springs (plates).

In RF‑/STEEL EC3, you can define the rotational restraint in the window 'Parameters - Members' or 'Parameters - Sets of Members'. For this, select the 'Rotational Restraint' check box. You can then enter the parameters of the rotational restraint in the settings. The rotational spring can be specified manually or calculated from the parameters of the discrete or continuous rotational restraint (see Figure 04).

In RF‑/FE‑LTB, you can define the rotational restraint in the window 'Elastic Member Foundation'. The rotational spring can be specified manually or calculated from the parameters of the discrete or continuous rotational restraint (see Figure 05).

关键词

rotational spring purlin trapezoidal sheeting

链接

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
RFEM 钢结构和铝合金结构
RF-STEEL EC3 5.xx

附加模块

按照 Eurocode 3 的钢结构杆件设计

首个许可价格
1,480.00 USD
RSTAB 钢结构和铝合金结构
STEEL EC3 8.xx

附加模块

按照 Eurocode 3 的钢结构杆件设计

首个许可价格
1,480.00 USD
RFEM 钢结构和铝合金结构
RF-FE-LTB 5.xx

附加模块

杆件弯扭屈曲有限元分析

首个许可价格
900.00 USD
RSTAB 钢结构和铝合金结构
FE-LTB 8.xx

附加模块

杆件弯扭屈曲有限元分析

首个许可价格
900.00 USD