
May 1, 2020
Video: Stainless Steel Member Design in RISACalc
Learn how to load and design individual beam and column stainless steel members in RISACalc.
We often get asked: “Should I model my foundation as a slab or a spread footing in RISAFoundation?” While both are valid options, they use very different analysis methods, and the results can vary accordingly. In this article, we’ll walk through a side-by-side comparison, using the same modeled conditions to highlight how the results differ — and why. Model Setup To keep things consistent, we modeled a single condition in two ways: once with a spread footing and once with a mat slab. Mat Dimensions: 10' x 10' x 1' Pedestal: 1' x 1' x 2' Loads Applied: 40 k vertical dead load 10 k lateral dead load 15 k lateral wind load 14.79 k concrete self-weight Soil Overburden: Set to 0 for both elements Slab Mesh Size: Refined below default for more detailed results Load Combinations: A basic set used for clarity (see screenshots in RISAFoundation) Analysis Methodology Feature Spread Footing Slab Element Analysis Type Rigid body Finite Element Analysis (FEA) Support Model Single support point Compression-only springs (based on subgrade modulus) Mesh Behavior No submesh Submeshed into smaller plate elements Lever Arm for Lateral Loads Spread Footings: Full pedestal height + full footing thickness Slabs: Full pedestal height…
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Learn how to load and design individual beam and column stainless steel members in RISACalc.
Learn how to load and design individual beam and column cold-formed steel members in RISACalc.
Learn how to load and design individual beam and column steel members in RISACalc.
Learn how to load and design individual beam and column wood members in RISACalc.
RISAFloor supports the use of flexible diaphragms on both flat and sloped roofs. Before reviewing the workflow for utilizing a flexible diaphragm on a sloped roof, it makes sense to review and understand the basic behavior of flexible diaphragms within RISAFloor. To do this, please first review the...
Over the last few weeks, we have been working hard to add the features and functionality that our customers have requested as well fix some of the issues that have been reported. With that in mind, we have prepared a new update of RISA-3D (v18.0.4) that includes the following features as well as...
When designing concrete shear walls for lateral loading, RISA-3D includes design checks for both in-plane and out-of-plane shear. In the condition where a concrete wall is under both axial tension and out-of-plane shear, the out-of-plane shear limit state for a specific region within the concrete...
With many of us working from home, our support team wanted to be able to connect with our customers where they are: in front of their computers. With that in mind, we are excited to introduce RISA Live. These live sessions, will take place every Thursday at 2pm EST (11am PST) and will focus on...
In RISA-3D when drawing members you must start with initial sizes. After loading and load combinations are completed the model is solved and then member design must be done, making sure that members pass for both strength and serviceability considerations. For both strength and serviceability...
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