CYPE 3D

In the "Bar" menu, in the "Fire resistance" section, the following options can be accessed:

• Required resistance / Protective coating
  In this section, the program allows users to define a particular configuration for the fire resistance check of a selection of bars.

• Exposed sides
  This section defines the sides of the bars exposed to fire. This section, together with the "Required resistance / Protective coating" section, was combined in a single panel in previous versions.
  
  
  
  
• Coating thickness
  This new tool allows users to define the thickness of the fire-resistant coating applied to the bars.

• Groups
  This now includes the ability to design the thicknesses of the fireproof coating. The design can be carried out by matching the thickness of the bars belonging to the same group, among other options. This option allows the creation of design groups, which can be composed of one or several tags.

In the "Analysis" menu, the "Design of the thickness of the fireproof coating" tool is added, which includes the following options:

• Minimum critical temperature
  Defines a minimum critical temperature for designing the thickness of the coating.
  
  
• Minimum cover thickness
  Sets a minimum thickness for the coating.
  
  
• Maximum cover thickness
  Sets a maximum thickness for the coating.
  
  
• Thickness increase when designing
  Specifies the thickness increment to be used by the program during the design process.
  
  
• Matching the coating
  • Calculates the thickness required for each bar. When this option is selected, the program assigns the required coating thickness to each bar.
  • Levels the thickness of all the bars. When this option is activated, the program matches the thickness of the coating on all the bars, taking as a reference the thickness of the most unfavourable bar
  • Matches the thickness of the bars with the same section. With this option, the program matches the thickness of the cladding of the bars with the same section, applying the thickness of the most unfavourable bar.
  • Matches the thickness of bars belonging to the same group. This option allows users to match the thickness of the cladding of the bars belonging to the same group, using the thickness of the most unfavourable bar.

In this new 2025.c version of CYPE 3D, the coating thickness check is also implemented.

In the drawings section, options for tagging the required strength, protective coating, coating thickness and critical temperature on the bars are also included.

Up until now, the "Pin ends" tool in the "Bar" menu only allowed users to pin one or both ends of each bar individually.

As of version 2025.c, this tool has incorporated an option for selecting multiple bars, which automatically pins the two ends of all selected bars.

This selection can be carried out one bar at a time, using a rectangular selection area or using the new filtering tool, which makes the process considerably easier when the ends of multiple bars need to be pinned.

The linear buckling analysis is carried out for each combination by eliminating the non-linear elements that are not involved and transforming those that are involved into equivalent linear elements. In this process, when two bars with "Only tension" behaviour form a braced frame and both bars are compressed in the same load case, the program transforms the behaviour of these bars to linear and reduces their axial stiffness by half. In situations where a portal frame is braced by two non-intersecting braces if both are compressed in a load case, the program deletes them before carrying out the buckling analysis, so the results of the buckling analysis are obtained without considering these bars in tension.

From version 2025.c, with this new tool, bracing pairs can be defined. If both bars in tension in a pair are compressed in a load case, they will be retained in the buckling analysis, reducing their axial stiffness by half, similar to the way the program does it automatically for bars in tension forming a braced frame.

Up until version 2025.c, loads were always represented with a size proportional to the load value. In CYPE 3D version 2025.c, another option is implemented to represent loads with a size proportional to a fixed value.

When the values of the loads are very different, the representation proportional to the value of the load may cause some loads to look very large and others very small. In these cases, this new option is very useful, as it allows a uniform representation.

In version 2025.c, the option to display loads with fill has been added. This feature is available in the dockable panel "View options".

When the option is deactivated, the loads are displayed in the same way as in previous versions. When enabled, the loads are drawn as filled, using the identifying colour corresponding to the loadcase.

When using any tool in the program that requires selecting elements, this can now be done automatically using filters. By clicking on the "Select by filter" option or by using the keyboard shortcut "Ctrl+s", a panel appears where users can define the filters they wish to apply.

At the bottom of the panel, the following options can be chosen:

• Select or deselect elements.
  
  
• Apply the selection or deselection action to elements that meet some or all filters.
  
  
• Reverse the selection.

This tool will significantly facilitate the use of the program. Some of the tasks that can be carried out with this function are: selecting all the bars of a specific section to modify that section, selecting all the vertical bars to adjust their buckling coefficients, or selecting all the nodes that are not connected to any bar to eliminate them, among other possibilities.