Over the years, bolted endplate moment connections have been very popular due to the
ease of fabrication and erection. The need for large capacity connections with four bolts in
one row had become mandatory as a reason of recent complicated structures with large
spans and limited available depths. The current research includes an extensive parametric
study for the extended large capacity bolted moment connections. For this purpose,
threedimensional finite element models are prepared using the nonlinear, multipurpose …