wind – BuildSoft Support https://support.buildsoft.eu BuildSoft Support Wed, 21 Aug 2024 07:09:26 +0000 en-US hourly 1 https://wordpress.org/?v=6.2.14 How to define wind loads in Diamonds https://support.buildsoft.eu/knowledge-base/how-to-define-wind-loads-in-diamonds/ Wed, 21 Apr 2021 13:03:25 +0000 http://buildsoftsupport.com/?post_type=ht_kb&p=3070 Demo

FAQ

Why can't I select the entire 3D structure and run the wind load generator?
Because it is impossible to write a good working algoritme for this. The algoritme should not only be able to distinguish all different floor plans/ roofs shapes, but it should also be able to make a meaningfull interpretation of it in order to generate the wind loads. For that reason BuildSoft has descided to keep the wind (and snow) generator 2D. This offers the most flexible solution.
Do I always need 24 sub load cases?
No. The number of required sub load cases depends on the shape of the roof and the number of internal pressure coefficients. The document at the end of this article explains which cases you need. If you don't feel like figuring out which cases you need, you can always generate all 24 cases. But for 3D structures like the one in the video, its worth verifying which cases you need as the calculation time increases when you have more load cases.
Will the wind generator also run for trusses, lattice structures, scaffoldings, billboards, .. ?
No. The wind generator as seen in the video is developed for buildings. As an alterantive you could enter the terrain parameters and apply a wind load on a group of bars (the selected bars must lie in the same plane). But this method implies that you manually look up the pressure coefficients and enter them in Diamonds.
]]> How to consult the used cpe, cpi and wind pressure? https://support.buildsoft.eu/knowledge-base/how-to-consult-the-used-cpe-cpi-and-wind-pressure/ Tue, 29 Jan 2019 09:21:22 +0000 http://buildsoftsupport.com/?post_type=ht_kb&p=3924
  • Go to My Documents > Diamonds > *CurrentDiamondsVersion*.
    Depending on your operating system, the name ‘My Documents‘ can be ‘Documents‘.
  • Add a txt-file in this folder. Name it ‘WindNorm’. Pay attention to the spelling and capital letters!
  • Generate a wind load case in Diamonds.
  • Now open the txt-file ‘WindNorm’. The used cpe, cpi and pressure will be mentioned in the txt-file.

    • Notes:

    • If you want to maintain overview, generate only one wind load case at once. The lay-out of the txt-file is not made for large outputs.
    • It is not possible to print/ show this information in Diamonds.
    ]]>         How to generate wind on a canopy roof https://support.buildsoft.eu/knowledge-base/how-to-generate-wind-on-a-canopy-roof/ Wed, 17 Oct 2018 15:14:52 +0000 http://buildsoftsupport.com/?post_type=ht_kb&p=3607
  • Set the ground level  and terrain parameters .
  • Select a 2D frame and click on .
    • Enter the distances for the position of the frame and select the option for a canopy roof.
    • Select the desired load cases (see pdf document at the bottom of this article).
        • Local coëfficients are used for the design of roof covers and fasteners. Global coefficients are used for strength and stability checks.
        • The φ indicates the degree of blockage. φ = 0 for a freestanding canopy, φ = 1 for a blocked canopy (see Figure 7.15 in EN 1991-1-4).

    • Hit ‘OK’.
    • Repeat the same steps for the next frame.

    • Note: the windgenerator on canopy roofs only generates the wind loads on the roof! If the wind load is blocked, you should apply wind loads on the facade manually!

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