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Thread: Structtual engineering

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    Structtual engineering

    What is meant by structural failure?

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    Moderator Robin Deurloo's Avatar
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    A collapsing building in most cases.

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    Quote Originally Posted by janesyd View Post
    What is meant by structural failure?
    the failure of a structural member due to external forces...

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    In the grossest sense, it's any failure of a structure to meet expected/reasonable design goals.

    More typically, it's a miscalculation/omitted calculation/flawed assumption in a complex assembly.

    It can also be a miscommunication of design intent to a builder.

    If the structural engineer, for instance designed a monolithic multi-arch concrete structure and properly calculates all of the linear forces and moment, but fails to check lateral forces, that could be a structural failure (even if the structure does not fall down).

    The latter case is more vexing. Let's say a tube section is required, and the design calls for two "C" sections to be welded together with the welds along the horizontal axis (flange to flange), and the builder welds them along the vertical axis (webs become flanges) this can create a major structural failure (especially if the tube section is meant to be bored for continuous all-thread rods to be passed through vertically).

    It can be complicated, too. A 3" thick slab of poured-in-place 3000psi concrete might be perfectly adequate, unless the subgrade below that slab was junk.

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    Senior Member Alex Page's Avatar
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    My previous marriage?

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    Moderator Robin Deurloo's Avatar
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    Quote Originally Posted by Alex Page View Post
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    I think he asked about structural failures not train wrecks

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    Senior Member Alex Page's Avatar
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    harsh man!


    (harsh but true)
    Last edited by Alex Page; February 11th, 2020 at 03:55 AM.

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