
August 30, 2019
Vibration Analysis for Steel Joists
RISAFloor v14 includes Steel Joist Vibration Analysis per SJI Technical Digest #5. For more information, check out the video below.
When working with RISA-3D, a structural analysis and design software, it's essential to thoroughly review your model to ensure accuracy and reliability. This checklist will guide you through the critical steps to review your RISA-3D model before analysis and design. This guide is not all encompassing for every type of model and situation and therefore are recommendations only. While this guide is not all encompassing, it is a really good start for those new to RISA-3D but also can be used to create or expand your company's review guideline/standards. Check out our guide below. Check Code Compliance: Review and confirm that the appropriate design codes and standards are selected for your project. Ensure that all code-specific settings and parameters are correctly configured, such as load factors and material properties. Units: Verify that the units used in your model match the units required for your project specifications. Check that length, force, and other units are consistent throughout the model. Application Settings: Examine machine-specific application settings and adjust them as needed for your project. Check/uncheck settings such as: Lock isolated rotational instabilities without notification. Enforce code RECOMMENDED slenderness limits (KL/r > 200, etc). Enforce code required P-Delta analysis. Section Sets Ensure that…
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RISAFloor v14 includes Steel Joist Vibration Analysis per SJI Technical Digest #5. For more information, check out the video below.
Strength Design (LRFD) according to the AWC-NDS 2015/2018 code has been implemented into RISAFloor v14.0. To select this code for your design, simply choose this code from the Codes tab within Global Model Settings.
RISAFloor v14 now includes floor vibration calculations per the 2nd Edition of AISC Design Guide #11. To select this code for your design, simply choose AISC DG 11 2nd Edition in the Beam Vibrations drop-down from the Codes tab within Global Model Settings.
RISAFloor is the RISA Building System’s floor design software which allows users to design with composite decks, elevated concrete slabs and more. When paired with RISA-3D, the two create a complete solution for the analysis and design of multi-story structures, including two buildings on the same...
The 2015 NBC compliant codes have been implemented into RISA-3D v17.0, RISAFloor v13.0 and RISAFoundation V.11.0!
The 2016 edition of ASCE Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE 7-16) is now available in RISA-3D v17.0, RISAFloor v13.0, and RISAFoundation v11.0!
Eurocode lateral torsional buckling capacity is calculated per equations in Annex F in the ENV 1993-1-1:1992. This calculation uses variables C1, C2 and C3. Since there is no generic formula in the Eurocode to calculate the moment gradient factor, C1, RISA will use the widely accepted López, Yong...
RISAFloor v13 includes a variety of modeling features which allows users to quickly create and manipulate geometry. These features include construction lines, saved selections and copy elements from floor to floor. Overall, these features can be used to help engineers streamline their modeling...
The new AWC NDS 2018 code has been implemented into RISA-3D v17.0 and RISAFloor v13.0. To select this code for your design, simply choose this code from the Codes tab within Model Settings.
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