
October 30, 2020
Simpson Strong-Tie®Yield-Link® Moment Connection Available in RISA-3D
The release of RISA-3D Version 19 includes the introduction of Yield-Link® Moment Connections, developed in conjunction with Simpson Strong-Tie®.
When modeling plate elements alongside member elements in RISA, users may notice that member forces—such as bending moments or axial loads—are lower than expected. This behavior is often the result of how loads are shared between plates and members based on their relative stiffness. If the distribution of forces doesn't align with your design expectations, it may be due to unintended interaction between these elements. Accurately capturing structural behavior requires not only the right modeling approach, but also a clear understanding of how plates and members interact within the analysis. In this article, we’ll explore common scenarios where this issue can arise, explain why it happens, and provide practical tips and workarounds to ensure your results match your design intent. Why Model Plate Elements in the First Place? Before diving into the interaction between elements, it’s worth asking: Do I need to model plate elements at all? In many cases, member design and stability can be accurately represented using simplified area or line loads—and plates might not be necessary. However, there are valid reasons to model plates, including: The model is unstable and needs plate elements for diaphragm action. Plates are part of the lateral load path. You want a…
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The release of RISA-3D Version 19 includes the introduction of Yield-Link® Moment Connections, developed in conjunction with Simpson Strong-Tie®.
RISAConnection v11 now includes the ability to design Column to Beam Column Cap Flange Plate Moment Connections according to AISC 360. This widely requested feature allows users to define the beam as a wide flange and the column as either a wide flange, tapered wide flange or HSS tube. To begin,...
Wide Flange beam to HSS Tube column moment connections can now be designed in RISAConnection version 9 with both the US and Canadian design standards. HSS tubes may be selected as the supporting column member on either of the two moment connections:
Wide Flange Beam to HSS Tube Column Moment Connections can now be designed in RISAConnection version 9. HSS tubes may be selected as the supporting column member on either of the two moment connections:
RISAConnection v8 now offers weak axis moment connections with beams framing into the web of a wide flange column. Previously, connections were only permitted to frame into the column flange. This additional feature will allow users to change the orientation of their wide flange column.
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