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Report: New Design Methods for Load-Bearing Clip Angles

The American Iron and Steel Institute has published a research report introducing new design methods for three limit states of cold-formed steel clip angles: shear, compression and pull-over of the screw connections. Details of the testing and results are included in “RP15-2: Load-Bearing Clip Angle Design.”


The research was conducted by Cheng Yu, Ph.D., associate professor at the University of North Texas, and his team. The scope of the project was to investigate the behavior of load-bearing cold-formed steel clip angles and develop appropriate design methods for their use when subjected to three different loading conditions. For each limit state, a test program was conducted to investigate the behavior, strength and deflection of the clip angles. The test results were then compared with existing design methods for members similar to, but not exactly the same as, cold-formed steel clip angles. The research team developed new design methods for each of the three limit states studied in the project. Load and Resistance Factor Design and Limit State Design resistance factors and Allowable Strength Design safety factors were provided to apply to the proposed design equations for nominal strength.


The 58-page document is available as a free download from AISI’s website.

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