Question:
Where in RF‑PUNCH Pro is the direction of the individual reinforcement layers displayed?
Answer:
The reinforcement directions phi 1 and phi 2 are displayed in Window 1.4 when clicking one of the cells shown in Image 01.
FAQ 003623 | Where in RF‑PUNCH Pro is the direction of the individual reinforcement layers displayed?
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In RF-PUNCH Pro, you can perform the punching shear design on wall corners and wall ends. The basis for the design is the punching load, which is automatically determined from the RFEM internal forces in the connected surface. Since the surface internal forces from the RFEM calculation may be subject to the influence of singularity locations, this can also have a negative influence on the determined punching load at the wall corner or end. This article describes possible optimization options that you can use to minimize this unfavorable influence.
In RF-PUNCH Pro, enlarged column heads can be arranged at point-supported punching shear points, thus increasing the shear force resistance of a reinforced concrete floor. In the following article, we will show the punching shear design with the optional application of an enlarged column head.
RF-PUNCH Pro performs punching shear design on concentrated load application locations (column connection, nodal support, and nodal load) as well as on wall ends and wall corners.
The fatigue design according to EN 1992-1-1 must be performed for the structural components subjected to large stress ranges and/or many load changes. In this case, the design checks for the concrete and the reinforcement are performed separately. There are two alternative design methods available.
![Dialog Box "Edit Wall" with Specification of Width "t" in [mm]](/en/webimage/019339/3371420/faq4637-02-en-us.png?mw=350&hash=12b1e89932c586ce4252df4a31c61a3d2219ef62)
Do you have individual column sections and angled wall geometries, and need punching shear design for them?
No problem. In RFEM 6, you can perform punching shear design not only for rectangular and circular sections, but for any cross-section shape.
For a response spectrum analysis of building models, you can display the sensitivity coefficients for the horizontal directions by story.
These key figures allow you to interpret the sensitivity to stability effects.
The modal relevance factor (MRF) can help you to assess to which extent specific elements participate in a specific mode shape. The calculation is based on the relative elastic deformation energy of each individual member.
The MRF can be used to distinguish between local and global mode shapes. If multiple individual members show significant MRF (for example, > 20%), the instability of the entire structure or a substructure is very likely. On the other hand, if the sum of all MRFs for an eigenmode is around 100%, a local stability phenomenon (for example, buckling of a single bar) can be expected.
Furthermore, the MRF can be used to determine critical loads and equivalent buckling lengths of certain members (for example, for stability design). Mode shapes for which a specific member has small MRF values (for example, < 20%) can be neglected in this context.
The MRF is displayed by mode shape in the result table under Stability Analysis → Results by Members → Effective Lengths and Critical Loads.
You can use the "Plate Cut" component to cut plates (for example, gusset plates, fin plates, and so on). There are various cutting methods available:
- Plane: The cut is performed on the closest surface to the reference plate.
- Surface: Only the intersecting parts of plates are cut.
- Bounding Box: The outermost dimension consisting of width and height is cut out of the plate as a rectangle.
- Convex Envelope: The outer hull of the cross-section is used for the plate cut. If there are fillets at the corner nodes of the cross-section, the cut is adapted to them.
What defines the dimensions "Length of Reinforcement" and "Width of Reinforcement" of the longitudinal reinforcement in RF‑PUNCH Pro? Is the anchorage length included?
I have entered a line support with "Wall in Z", but I cannot select the wall end for the design in RF‑PUNCH Pro. Why?
Which static depth d is applied in RF‑PUNCH Pro for design on surfaces with a variable thickness?
Are the minimum moments also considered in the case of punching shear on foundation plates?
What is the meaning of a "main load" and "secondary load" in RF‑PUNCH Pro, and where does this load come from?
Is it possible to apply the minimum bending moments according to DIN EN 1992‑1‑1 in RF‑PUNCH Pro?
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