VERSION HISTORY
LIRA-FEM

Options to generate and modify the model

Last updated: March 24, 2024
  • In the "Truss parameters" dialog box, there is a new way of dividing the bottom and top chord of the truss taking into account the location of the web. There is also a new parameter: "STC function". This parameter allows you to display the functional purpose of the truss element when the truss is exploded. It will also be displayed in the steel table.

Truss parameters

Truss parameters
  • In the "Retaining wall" element, a new type of alignment for the analytical model (Left) is added. Also the "Arbitrary snap" option is added to the "Level snap" parameter.

Type of alignment for analytics - Left

Type of alignment for analytics - Left
  • Fixed bug: the stairs did not reach the wall horizontally.

  • Fixed bug: in selecting "Other" elements when using the "Select Up" command.

  • Improved "Cancel" tool: fixed bug when properties are assigned to objects.

  • The "Design options" dialog box is enhanced. If several design options with completely identical input data are specified in the dialog box, the program will check and display a warning about it.

  • Enhanced algorithm for assigning more than one type of pilot reinforcement (PR) to columns.

How to assign several PR types to one column

How to assign several PR types to one column
  • Modified and improved algorithms for finding intersections of objects:

  • Corrected function: determining the interposition for a rib of a beam side surface and a rectangle of column surface. In some cases, unnecessary intersections were created.

  • In the functions of intersection between real volumes, the search parameter assigned to elements is used. Until now, in some cases it was taken from the settings for the meshed model and the setting assigned to elements was ignored.

  • Fixed for plates. The "Real volumes" worked only if they were assigned to both elements, otherwise the simplified method "By axial lines and volumes" was applied. Now if a "Real volumes" intersection option is defined for either of the two elements, this option will be applied.

  • Corrected algorithm for intersection of surfaces. Fixed bug: creation of unnecessary PRBs. So, in some cases it was not possible to transfer the model to LIRA-FEM.

  • Fixed bug: visual isolation of Shafts in the analytical presentation of the model. When activating the "Current storey" command, the shafts were displayed on all storeys.

  • New option to define the input data for the dynamics module (32) of SNRA 20.04-2020, Republic of Armenia.

Dynamics module (32) SNRA 20.04-2020, Republic of Armenia

Dynamics module (32) SNRA 20.04-2020, Republic of Armenia
  • Optimised process of load application to the object: fixed bug when the concentrated load applied to the column was not applied to the object in the meshed model.

  • L and R search parameters are added for wall, column, beam and slab objects with the "Load" interpretation.

  • Enhanced mode for visualisation of the current storey for space loads in the physical and analytical presentation of the model.

  • Fixed bug: incorrect designation for direction of the "Soil pressure" in the architectural and meshed models.

  • Clarified option to transfer the uniformly distributed loads on bars when the "By whole finite element" option is selected.

  • Added option: to define multiple special loads for elements rather than one as in previous releases of the program.

  • Enhanced algorithm for distribution of dead weight of elements to different load cases. Unlike previous versions, when the load from dead weight could only be placed into a duplicate dead weight load case, it is now possible to place the load from dead weight into any load case.

How to collect the dead weight into a custom load case

How to collect the dead weight into a custom load case
  • In the "Create new meshed model" dialog box, there is a new command that allows you to customize parameters of a new meshed model. The previously specified data may be saved.

Project settings for generating a meshed model

Project settings for generating a meshed model
  • The transfer of the meshed model from LIRA-CAD module to VISOR module is accelerated. The speed of saving option varies and depends on the content of the model. On average, the meshed model is transferred to VISOR module 3-5 times faster than in previous versions of LIRA-CAD module.

Transfer of the meshed model is accelerated

Transfer of the meshed model is accelerated