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  • 1.  Seismic coefficient for non-building structures

    Posted 09-25-2019 04:00 PM
    Edited by Tirza Austin 09-25-2019 06:21 PM
    Hello,

    I have a non building structure similar to the building. For the structural system, I use knee braces to decrease the moment in my moment connections (end plate to the HSS beam). In table 15.4-1 in ASCE 7-10 there is no similar system to mine. My question is which R should I take for my system?

    Thank you

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    Seyedkaveh Fatemi EIT, A.M.ASCE
    Pacoima CA
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  • 2.  RE: Seismic coefficient for non-building structures

    Posted 09-26-2019 11:47 PM
    Edited by Tirza Austin 09-26-2019 11:47 PM
    ASCE 7 does not cover this type of system. However, AISC 341 does specify a method to design knee braced systems. Please refer to Commentary of E1 in AISC 341-10 or AISC 341-16. You will find guidelines to design your system. In summary, you should consider R =3.5 or 2.5 (from Table 15.4-1, ASCE 7-10, depending on height and SDC) and then follow ductile detailing rules of commentary E1 of AISC 341-10.


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    Neeraj Agrawal
    Gurgaon
    India
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