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Hughes Brothers Brace Components

This library contains many braces manufactured by Hughes Brothers. The data was obtained directly from Hughes Brothers and has been compiled into a component file for PLS-POLE. Most of the data is available directly from the Hughes Brothers website and on-line catalog at http://www.hughesbros.com/Ecatalog.html. This file will only work with PLS-POLE Version 6.0 and above.

The Brace Property Label used in the component file is HB, followed by the brace type, followed by the dimensional properties. The Stock Number is just the brace type and should be changed to match your internal Stock Numbers to aid in developing your material tables.

The library uses the calculated strength check method to avoid the large number of brace types and lengths that would be required if the nominal strength check was used. The Modulus of Elasticity is 1600 ksi and the design normal stress is 7.4 ksi. The weights of the braces were calculated with a density of 42 lbs/ft^3. As the tension capacities of the braces are often controled by end fittings and hardware, the net section was calculated by taking the published tension capacity and backing it out. The result is that the tension capacity of all the braces matches the published tension capacities. The compression capacities use an unbraced length ratio of 0.5 in the "x" direction, which results in an exact match of the Hughes Brothers compression capacities. In addition, we have arbitrarily chosen a 0.7 unbraced ratio in the "z" direction of the braces. 0.7 is commonly used in the industry for this ratio, but you may change it to meet your situation.

Should you try to verify the compression capacities, be aware that they are very dependent upon the exact length of the braces. A difference of just 3 inches in brace length can make several hundred pounds difference in capacity.

Click on Hughes Brothers Brace Components Library to download the library.

Please note: Power Line Systems cannot provide a copy of Hughes Brothers catalog or any other standards or material for that matter. We suggest that you contact your Hughes Brothers Representative or the various standards organizations for those documents.

LEGAL DISCLAIMER: These files are being provided on an "as-is" basis. Neither Power Line Systems, Inc., nor the various manufacturers accept responsibility for the accuracy herein, and the end user is ultimately responsible for the verification of all data.