Newton-Raphson for Calculations According to Second-Order Analysis
Defining the appropriate effective length is crucial to obtain the correct member design capacity. For X-bracing that is connected at the center, the engineers often wonder if the full end-to-end length of the member shall be used or using half of the length to where the members are connected is sufficient.
This article outlines the recommendations given by the AISC and provides an example on how to specify the effective length of the X-braces in RFEM.
- Is it possible to import the coordinates of another point?
- How can I neglect torsion in the steel and timber design?
- Can I define a different bar size in the RFEM 6 Concrete Design add-on other than the default bar sizes available in the drop-down?
- Can the RFEM 6 Concrete Design add-on automatically design member and surface reinforcement?
- Where can I find the calculation parameters to be set?
- How can a model be regenerated or where can I adjust the model tolerances?
- How can I deactivate the consideration of shear stiffness for a cross-section calculation?
- What is the reason for changing the colors for compression and tension in RFEM 6 and RSTAB 9 with respect to previous program versions? Since then, compression was red and tension was blue.
- When analyzing the combinations using the geometric linear method, it seems that the parallel calculation works.However, when I change the method to the second-order analysis, it seems that the solver calculates the combinations one by one.
- Do I have to rewrite my own tools created with RF‑COM, for example, to enter models in RFEM 6?
RFEM 6 structural analysis software is the basis of a modular software system. The main RFEM 6 program is used to define structures, materials, and loads of planar and spatial structural systems consisting of plates, walls, shells, and members. The program also allows you to create combined structures as well as to model solid and contact elements.