
August 27, 2020
VIDEO: Creating Custom Shapes in RISA-3D
Learn how to build custom steel and concrete shapes using RISASection and then import them into RISA-3D to incorporate them in analysis and design.
This time of the year many of us will start singing this season's greatest hits: Let it Snow, white Christmas, and... Winter Wonderland. While these songs bring cheer to all our hearts, they are also a reminder to structural engineers of the unique design challenge posing many regions: Snow Loads! Snow, though picturesque, poses significant challenges to structural integrity, especially in regions with harsh winter climates. The accumulation of snow atop buildings and structures exerts immense pressure, demanding meticulous engineering strategies to guarantee stability and safety. Understanding the impact of snow loads and implementing effective design solutions is pivotal in constructing resilient structures. 1. Load Calculations: Precise calculation of snow loads involves considering local weather data, snowfall patterns, and building codes. Engineers utilize complex formulas and standards like ASCE 7 (American Society of Civil Engineers) to determine the maximum expected snow load. 2. Structural Analysis: Advanced computational tools aid in simulating snow accumulation scenarios, enabling engineers to assess stress points and potential weaknesses in structures. Finite element analysis helps anticipate the structural response to snow loads, guiding reinforcement strategies. 3. Design Adaptations: Designing with snow loads in mind involves reinforcing roofs, trusses, and support systems. Sloped roofs, for instance, aid…
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Learn how to build custom steel and concrete shapes using RISASection and then import them into RISA-3D to incorporate them in analysis and design.
When using RISA Integration between RISASection and RISA-3D, RISA-2D and/or RISAFloor, there are a few common mistakes that people make when attempting to access the RISASection files from the Shape Database.
There are multiple options in RISA-3D and RISAFloor to create a custom shape not available in the program databases. The first, is to utilize RISASection in order to create cross-sections, calculate section properties and import the shape directly into RISA-3D. For more information on integrating...
Use RISASection to find the properties of built-up steel sections, then model beams using the same section properties in RISA-3D and get full code-checks using AISC 360. This webinar will teach you how to use RISASection quickly and easily to determine complex section properties.
RISASection v2 includes updated torsional shape properties for a more accurate analysis. Check out the video below for more information:
In order to get code calculations, RISA-3D and RISA-2D need to know what type of shape would be most similar to yours. This is because the program needs to use the correct code equations for your shape type.
RISASection 2.0 includes the ability to assign your section as one of the predefined hot rolled steel Shape Types (Wide Flange, Channel, Tube, etc.). This means that when the shape is imported into RISA-3D, you will now be able to get design results and code checks for the member.
The latest version of RISASection, includes a powerful new DXF import feature. This feature allows the user to import any 2D geometry into RISASection for the calculation of the cross-sectional properties and the import into RISA-2D, RISA-3D or RISAFloor for use in the larger model.
Modeling built-up or composite sections can easily be done in RISASection. Because the properties of such a section are computed using a weighted summation of the transformed shape properties, RISASection uses a Property Multiplier to specify the relative weight of a single shape in a built up...
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