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Re: Load Capacity of a Holddown Post as a Compression Member

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I asked that question of Todd Helwig at the AISC Bracing for Stability course.  My memory is 99% sure that he said to average the compression (or 1/2 the maximum when the top is at 0) and apply that to the full member height.
Jim Wilson, P.E.
Stroudsburg, PA

"Nels Roselund, SE" <njineer(--nospam--at)> wrote:
Is there a rational way to determine the design capacity of a compression member in which the applied load increases linearly along its length from zero at one end to a maximum at the other end, as for a shearwall holddown the end of a shear wall?  I assume that the capacity would be greater than if the load is applied in end bearing each end.
Nels Roselund
Structural Engineer
South San Gabriel, CA

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