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Cake day: 2024年8月22日

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  • debris_slide@lemmy.worldtoWTF@lemmy.wtfIt looks so neat!
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    1 个月前

    Much better. Imagine you’re bending something. The maximum tension is going to be at the very bottom and the max compression is going to be at the very top (this is why steel I-beams are shaped the way the are - to put the most material in the areas doing the most work). If you can put the hole in the middle you’re not impacting the structural integrity of the joist too much. You’d still have to worry about shear forces so you’d not want the hole to be too close to either end. Look up “castellated beam” if you want to see some steel examples.