Static tension tests of long bolted joints

Abstract This paper is a detailed report of tests of twelve long butt joints fabricated with A7 steel and fastened with 7/8” A325 bolts. Bolt shear areas were proportioned using a tension-shear ratio of 1/1.10. The major variable of the test series was joint length so that this report presents the first systematic study of the effect of joint length on bolt performance. Additional data were collected to provide information on joint slip characteristics. Possible ultimate strength design procedures based on these test results are offered.