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November 16, 2018

How to Include Transfer Forces in your Vertical Brace Connection

RISAConnection assumes by default that your vertical brace connection is a one-sided connection without any outside influence or load transfer from other connected elements.  Using this assumption, the design shear and axial force at the beam to column sub-connection is determined using simple statics per the Uniform Force Method in the AISC Steel Design Manual.

However, it is very possible that this connection is also seeing forces from other connected elements, such as out of plane horizontal braces.  You may now take these into account by entering them as the new Transfer Forces input.

These inputs will be included in the final calculation of the axial and shear design forces at the beam to column sub-connection.  The equations shown below are based on statics as well and combine all components of the loads at the beam to column intersection.

The final load calculations are shown in detail in the Required Load Calculation report on the Beam/Column results report tab.


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This entry was posted by RISA News on Friday, November 16th, 2018 at 10:15 am and is filed under Technical Solutions, What's New. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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