An evaluation of the behaviour of slip-critical connections subjected to combined shear and tension.

Presently, Clause 13.12.3, Connections in Combined Shear and Tension, of S16.1-94 gives an expression for slip-critical connections subjected to combined shear and tension. The objective of this research was to examine the validity of this interaction equation. In doing so, it was necessary to determine the slip coefficient of A36 steel with mill scale and to devise an accurate method to monitor the induced bolt tension, or preload. Four tension and six compression joints were tested in order to determine the slip coefficient. Two methods were used to monitor the bolt preload. First an approximate method was used. These results were used to determine the average bolt preload. This value was used in determining the slip coefficient for the tension joints. The second method used a preload cell that allowed the actual bolt preload to be measured during testing. The preload cell was used in testing the compression specimens to determine the slip coefficient. Once the slip coefficient was known and a method of monitoring the bolt preload was established, a connection simulating testing device was used to test connections subjected to various combinations of shear and tension. (Abstract shortened by UMI.)Dept. of Civil and Environmental Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1998 .C67. Source: Masters Abstracts International, Volume: 39-02, page: 0548. Adviser: Murray Temple. Thesis (M.A.Sc.)--University of Windsor (Canada), 1998