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CadnaB 2023

Bugfix

Besides many new functions, version 2023 also contains bugfixes which may have an influence on calculation results, see below in the section "Bugfixes". Due to these changes, we strongly recommend an update, which is available on our website (after login).

New Features

  • Input option of user defined vibration reduction indexes Kij for flexible handling of flanking transmissions. Open the junction dialog and deactivate the option "Calculate vibration reduction Kij automatically (recommended)".

    For more information, refer to the chapter 4.8.2 "User defined vibration reduction index" in the Documentation.

  • Different vertical and horizontal Dn,f/Dn,f,w inputs for walls are possible.

  • ISO 12354 - Display of spectra in the results dialog for spectral evaluation parameters.

  • DIN 4109 - Optimized automatic requirements detection for DIN 4109-1 and DIN 4109-5.

    • Requirements only for rooms requiring protection.
    • Room/habitation assignment is considered for the detection of foreign areas for the building types, multi-family, office, and mixed-use buildings as well as row houses.

  • Adjusted and extended selection of room usages as well as an improved selection option via the context menu in the "Usage" mode. When loading existing projects saved with an older CadnaB version, it is recommended to check the automatically transferred room usages and adjust them if necessary.

  • DIN 4109 - Option for horizontal impact sound insulation calculation with lightweight separation walls. This option can be activated in the calculation configuration. The calculation method according to DIN 4109-2:2018-01 for heavy separation walls >150 kg/m2 is also used for light weight separation walls on solid ceilings/floors if this option is activated.
  • Optimized delete logic in the "Constructions" mode. With "Delete" a complete construction including sub-constructions can be deleted. Sub-constructions can be deleted separately via the context menu.
  • Improved output in the calculation protocol e.g. information on the use of user defined vibration reduction indexes, DIN4109: indication of Kij,min when applied, ...
  • Extended display of issues displayed in the results dialog if the calculation of the respective transmission situation shows deviations from the calculation standard.

Bugfixes

  • ISO 12354: Bugfix of horizontal impact sound transmission via multi-part separation components (this may influence calculation results).
  • ISO 12354: Bugfix of the flanking transmission of airborne sound transmission from the outside to the inside of facade walls with multiple junctions (this may influence calculation results).
  • DIN 4109: Bugfix of flanking transmission across ceilings, when using lightweight partition walls with multiple junctions (this may influence calculation results).
  • DIN 4109: The consistency check for separation areas < 10m2 with evaluation parameter DnTw is no longer displayed.
  • DIN 4109: In the results table, the requirements are updated even after a consistency check is displayed.
  • Adjustments to the "Undo/Redo" function in Constructions mode.