It is important to submesh plate elements in your model in order to obtain the most accurate results. However, many users wonder what the approximate guidelines for plate dimensions are acceptable.
Aside from leaving an unbraced length blank or inputting a fixed distance, you can harness the program’s ability to use a limited intelligence for determining unbraced lengths. In order to do this you can simply type in the name of the Unbraced Length Commands into the unbraced length field.
Understanding unbraced lengths and how RISA software accounts for them is essential in the design of any project. In RISA there are three main types of unbraced lengths:
The axial compression and flexure strength of beams and columns is dependent on the spacing of elements which provide bracing along the length of those members. You may specify unbraced lengths as a fixed distance or by using RISA’s Unbraced Length Commands. These unbraced lengths are used for...
Code requirements for consideration of panel zone shear deformation can be confusing. This blog post discusses some of the basis for these code requirements and when one can consider them to be met and when one cannot.
By default RISA-3D draws all members as line elements located at the centroid of the cross-section. However, connections between members are not always aligned with a member’s centroid. There may be horizontal or vertical offsets in the connection. To account for these you can add rigid links to...
A rigid link is a member element in RISA-3D that can be used for many advanced modeling procedures. It is so useful that it is included as one of the default member Section Sets, as you’ll see below.
RISA-3D and RISA-2D will allow you to add a moving load pattern to your model and include it in your envelope solution.
Print reports can contain spreadsheet information, graphic views, detail reports for specific members and load combinations, and external images such as hand calculations, title pages, etc. When in a model view, you will notice a button with an image of a camera on it in the toolbar:
