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  • 1.  Drift checks

    Posted 11-09-2023 10:39 AM

    What are the load combinations that should be considered for the drift checks with the allowable limits.


    #ASCE7-10

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    Vijaya Saidu R.Eng, M.ASCE
    Civil and Structural Engineer
    Chaguanas
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  • 2.  RE: Drift checks

    Posted 11-10-2023 12:18 PM

    Vijaya- Brian Carlisle already responded with regard to wind drifts.   For seismic, drifts are computed per ASCE 7-10 Section 12.8.6.  The drift of concern is that due to seismic alone (not in combination with other loads).  Seismic drifts are computed using the horizontal forces associated with the base shear force V, computed in accordance with the ELF or RSA procedures without further modification or load factors.



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    Ronald Hamburger, SE
    Consulting Principal
    Simpson Gumpertz & Heger
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    Original Message


  • 3.  RE: Drift checks

    Posted 11-11-2023 02:28 PM
    Thank You, Very much Sir.

    On Fri, Nov 10, 2023 at 1:20 PM Ronald Hamburger via ASCE Collaborate <Mail@...> wrote:
    Vijaya- Brian Carlisle already responded with regard to wind drifts.   For seismic, drifts are computed per ASCE 7-10 Section 12.8.6.  The drift...
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    Re: Drift checks
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    Nov 10, 2023 12:18 PM
    Ronald Hamburger

    Vijaya- Brian Carlisle already responded with regard to wind drifts.   For seismic, drifts are computed per ASCE 7-10 Section 12.8.6.  The drift of concern is that due to seismic alone (not in combination with other loads).  Seismic drifts are computed using the horizontal forces associated with the base shear force V, computed in accordance with the ELF or RSA procedures without further modification or load factors.



    ------------------------------
    Ronald Hamburger, SE
    Consulting Principal
    Simpson Gumpertz & Heger
    ------------------------------
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    Original Message:
    Sent: 11/10/2023 12:18:00 PM
    From: Ronald Hamburger
    Subject: RE: Drift checks

    Vijaya- Brian Carlisle already responded with regard to wind drifts.   For seismic, drifts are computed per ASCE 7-10 Section 12.8.6.  The drift of concern is that due to seismic alone (not in combination with other loads).  Seismic drifts are computed using the horizontal forces associated with the base shear force V, computed in accordance with the ELF or RSA procedures without further modification or load factors.



    ------------------------------
    Ronald Hamburger, SE
    Consulting Principal
    Simpson Gumpertz & Heger
    ------------------------------


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