April 22, 2016

Seismic Braced Frames in RISAConnection v6

This webinar shows users how to design and detail brace connections including gussets to meet the AISC 341/358 Seismic Provisions.

Tags: Seismic, New, RISAConnection, Brace Connection

March 20, 2013 | RISA-3D, Plates, RISA-2D, New

Plate Contours Compared to Spreadsheet Values

After solution in RISA-3D, you can use Results View Settings to view the Plate Contours graphically on your model. Many times, these contour values will not exactly match the values reported in the Plate Forces/Stresses spreadsheets. This is because the contour maps are created using a smoothing algorithm that connects the spreadsheet value (this is the true analysis value, taken at the center of each plate with the values of the plates around it to create the contour). You can increase the accuracy of your contours by meshing your plates into smaller plates, but for design purposes, we still generally recommend that you use the spreadsheet values…

October 30, 2020 | RISA-3D, RISAFoundation, New, Basic Load Case, v19, Loading, v13

Expanded Load Categories in RISA-3D and RISAFoundation

New to RISA-3D v19 and RISAFoundation v13 is the ability to apply up to 100 "Other Load" Categories. Previously users only had the ability to add up to 10 "Other Load" Categories. The expansion of "Other Load" Categories gives the user more flexibility to be able to apply and organize the loading in the model to fit their needs. To apply "Other Load" Categories in RISA-3D, simply select the "Other Load" Category from the drop down menu when drawing loads. To include the "Other Load" Categories in the Load Combinations in RISA-3D, you may either enter OL1-OL100 in the BLC field or you can select the ellipses to prompt the Set BLC Entry and select the "Other Load" Category from the drop down menu. To apply "Other Load" Categories in RISAFoundation, choose the "Other Loads" from the dropdown on the Distributed Loads Spreadsheet (or in the left Properties Toolbar) and choose a value between 1 and 100. To include these "Other Loads" in Load Combinations, you may either enter OL1-OL100 in the BLC field or you can select the red arrow to prompt the Set Category Entry and choose the "Other Loads" radio button and input a value between 1…

July 7, 2020 | RISA-3D, Walls, Plates, Results, New

Expanded Results for Contour Plots

Color contours and gradients can be very helpful to visualize the forces/stresses of plates and wall panels. But did you know there are other design tools that can be helpful in analyzing and understanding these contours? The family of Internal Force Summation Tools (IFST, IFST Wall and IFST Slab) gives users the ability to "cut through" elements in the model and produce a summation of forces that corresponds with a given load combination. For more information about these tools, visit the articles listed below: Besides the family of Internal Force Summation Tools, there is another useful tool called the Contour Diagram tool. The Contour Diagram tool allows users to see what the forces/stresses are along a defined cut within the Color Contours/Gradients. To utilize this tool, first click the Contour Diagram button found at the bottom of the Selection Toolbar or found in the Results tab. Next, click the start and end nodes that define the location and direction of the cut you wish to make. Once you have a contour diagram showing the results you are interested in, you can navigate to the Results tab and choose the Diagram Report option. In the Diagram Report, you will see an…