Because of limited available information on strength and ease of installation of specific fasteners for a particular application to a steel deck diaphragm, a preliminary testing program comparing the shear strength of commercially available screws and gas-actuated shot pins was conducted by J. R. Harris and Company at the University of Colorado Denver in 2018. A test was designed to explore the behavior and capacity of various fasteners, securing two and three pieces of sheet steel of various thicknesses together. Specimens were fabricated and load tested, with the sheet steel pieces in tension, so the fasteners were subject to shear. Four fasteners, in two rows of two, were used for all tests, with different end distances also being studied. Most of the tests were monotonic tension, and those results were used to develop a cyclic testing protocol for the best performing screw and shot pin.Most limit states encountered were limited by tilting of the screw against the sheet steel in bearing, leading to a ductile failure. Fastener shear was encountered in a small percentage of cases. Results are compared to each other and to AISI calculated values.
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机译：由于在强度和强度方面难以获得信息，并且无法满足特定要求的特定紧固件在钢甲板隔板上的特殊应用，JR Harris and Company在2002年进行了一项初步测试程序，比较了市售螺钉和气动射钉的剪切强度。于2018年在科罗拉多州丹佛大学（University of Colorado Denver）进行。旨在测试各种紧固件的性能和容量的测试旨在将两块和三块不同厚度的钢板固定在一起。在钢板受拉的情况下，制造了样品并进行了载荷测试，因此紧固件会受到剪切力的影响。所有测试均使用四行紧固件，分为两行，每行两行，并且还研究了不同的端距。大多数测试是单调拉伸，这些结果用于制定性能最佳的螺钉和and钉的循环测试方案，遇到的大多数极限状态都受到螺钉相对于轴承中的钢板倾斜的限制，从而导致了延性失败。在少数情况下会遇到紧固件剪切的情况。将结果相互比较，并与AISI计算值进行比较。
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