Analytical Approach on Endplate Connection: Ultimate and Yielding Moment

A common means of forming a rigid joint between universal beam and column is to weld an endplate to the beam end and then to bolt to the column. A physically based yield line model that can predict the ultimate moment capacity and yield moment of the bolted extended endplate eave connections, using the connection dimensions as input, is presented. The analytical method is proposed for the extended endplate joints having four bolts in tension region, and without any stiffened plate. Comparison is made to a series of test results for a range of bolted endplate moment connections, and good agreement is achieved. Furthermore, the writers believe that this method will efficiently serve design engineers in real design condition.