Reversed Cyclic Performance of Shear Walls with Wood Panels Attached to Cold-Formed Steel with Pins

This technical paper by Reynaud Serrette, Ph.D. and David P. Nolan, P.E. was published in the August, 2009 edition of the American Society of Civil Engineers' Journal of Structural Engineering. This paper presents detailed findings of an experimental program that evaluated the performance of shear wall assemblies in which wood panels were fastened to steel studs with pneumatically driven pins manufactured by ET&F Fastening Systems, Inc. The results show the walls have significant displacement capacity and the design values were primarily governed by the drift requirements in the building code.

This new research confirms that ET&F's steel pins meet the seismic criteria of the 2006 International Building Code and offer an effective and efficient alternative to screws.

With the adoption of the 2006 IBC in California, ICC Evaluation Services established new criteria for assignment of the seismic response factor ”R” of 6.5 for lateral force-resisting elements to be recognized for use in light frame shear wall buildings. Dr. Serrette explains ”The three new criteria are in addition to existing code requirements. The primary focus of the new criteria is on displacement capacity. This research shows walls assembled using ET&F pins meet and exceed both the code requirements and the new ICC-ES criteria.”

The Journal of Structural Engineering reports on fundamental knowledge that contributes to the state of the art and state of the practice in structural engineering. Published papers undergo a rigorous review and technical evaluation process by both journal editors and independent experts.

Read a summary of the report at the ASCE website. An authorized reprint of the complete copyrighted report is available by request on ET&F's Contact Us page.